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Posts Tagged ‘Hawaii’

Mini-Updates of Kīlauea Summit and LERZ Activity – 060802

Posted by feww on June 8, 2018

Mini-Updates of Kīlauea Summit and Lower East Rift Zone Activity

Kilauea – 2018-06-08 13:05:32
At 2:44 AM HST, a small explosion occurred from Kīlauea’s summit. PTWC magnitude is 5.5, but shaking was equivalent to a ~M4 event. No radar observations, but satellites suggest any plume is less than 10,000 feet ASL.

Another explosion at the summit of Kīlauea


On June 6, at 4:07 p.m. HST, an explosion within Halema‘uma‘u sent an ash and gas plume to a height of about 10,000 feet above sea level. The explosion released energy equivalent to that of a magnitude-5.6 earthquake; a result of the explosion-related energy release was ground shaking felt throughout the summit area. This plume is typical of those produced by the larger explosions that have occurred at Kīlauea’s summit. [USGS-HVO]

PAL – 060802

M 5.2 Volcanic Eruption
19.405°N, 155.281°W [5km WSW of Volcano, Hawaii]
1.0 km depth
2018-06-08 12:44:34 UTC

This earthquake was associated with an ash explosion that occurred around 02:44 AM Friday, June 8th local time from Halema’uma’u crater. A modest plume may have been generated and drifted southwest with possible ashfall at downwind locations. [USGS]

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Mini-Updates of Kīlauea Summit and Lower East Rift Zone Activity

Posted by feww on June 7, 2018

Volcanic Activity: Mini-Updates of Kīlauea Summit and Lower East Rift Zone

Kilauea – 2018-06-07 02:38:17 UTC
Explosive eruption at Kīlauea summit, equivalent to energy release of M5.6 (preliminary), occurred at 4:07 PM HST. Ash plume reached 10,000 ft above sea level. Downwind communities may experience ashfall. [USGS-HVO]

Ros T. – 060702

M 5.4
19.413°N 155.280°W [6km SW of Volcano, Hawaii]
0.6 km depth
2018-06-07 02:06:38 UTC

This earthquake was associated with an ash explosion that occurred around 4:06 PM Tuesday, June 6th local time from Halema’uma’u crater. The plume extended to about 10,000 ft above sea level and drifted southwest with possible ashfall at downwind locations. USGS

Nearby Places
Direction data (below) indicate the position of the event relative to the place.

  • Volcano, Hawaii: 5.8 km (3.6 mi) SW – Population: 2,575
  • Hawaiian Paradise Park, Hawaii: 37.9 km (23.5 mi) WSW – Population: 11,404
  • Hilo, Hawaii: 40.3 km (25.1 mi) SSW – Population: 43,263
  • Kailua-Kona, Hawaii: 79.6 km (49.5 mi) ESE – Population: 11,975
  • Honolulu, Hawaii: 341.3 km (212.0 mi) SE – Population: 371,657

Hawaii Island 30 Days, Magnitude 2.5+ earthquakes: 1,726

[USGS]

Diagnostics and Forecasts available via FIRE-EARTH Pulsars.


Webcam Notes


This image is from a temporary thermal camera positioned on the northwest flank of Puʻu ʻŌʻō, looking southeast at Puʻu ʻŌʻō’s summit crater. The temperature scale is in degrees Celsius up to a maximum of 500 degrees (932 degrees Fahrenheit) for this camera model, and scales automatically based on the maximum and minimum temperatures within the frame. Thick fume, image pixel size and other factors often result in image temperatures being lower than actual surface temperatures. [Source: USGS-HVO]

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KILAUEA Eruption Destroys Hundreds of Homes

Posted by feww on June 6, 2018

Lava may have already destroyed scores of homes on Big island

Kilauea eruption may have already destroyed as many as 500 homes on Hawaii’s Big Island, according to informed sources.

Report Mirrored From USGS-HVO

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT – USGS
Tuesday, June 5, 2018, 10:28 PM HST (Wednesday, June 6, 2018, 08:28 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: RED

Kīlauea Volcano Lower East Rift Zone

Vigorous eruption of lava continues from the lower East Rift Zone (LERZ) fissure system in the area of Leilani Estates and Lanipuna Gardens.

Persistent lava fountaining at Fissure 8 is reaching heights of 150-180 feet. This eruptive activity continues to feed a channel transporting lava to the east to the ocean entry in the Kapoho Bay area. Minor breakouts along the channelized flow have been very small and stagnated before travelling any significant distance. HVO’s late afternoon overflight showed that the Fissure 8 flow is continuing to form a lava delta with limited continuing advances into the surviving parts of the Kaphoho Beach Lots and Vacationlands neighborhoods. The northernmost lobe of the Fissure 8 flow is advancing very slowly to the northeast. No other fissure vents are active.

Pele’s hair and other lightweight volcanic glass from high fountaining of Fissure 8 are falling downwind of the fissure and accumulating on the ground within Leilani Estates. Winds may waft lighter particles to greater distances. Residents are urged to minimize exposure to these volcanic particles, which can cause skin and eye irritation similar to volcanic ash.

The most recent map of lava flows can be found at https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

HVO field crews are on site tracking the fountains, lava flows, and spattering from multiple fissures as conditions allow and are reporting information to Hawaii County Civil Defense.

Volcanic gas emissions remain very high from the fissure eruptions. Trade wind conditions are bringing vog to the south and west sides of the Island of Hawaii. Afternoon easterly winds may bring vog to communities in the Volcano area.

LERZ Video [Source: USGS-HVO]

The fissure 8 lava fountains were slightly diminished during the overnight hours of June 4-5, with fluctuating heights of about 100 to 160 feet. Previous fountain heights reached a sustained 260 feet. The fountain is partially obscured by a spatter cone (built by an accumulation of lava fragments) that is about 115 ft high. View is from Nohea and Leilani Streets, in the Leilani Estates subdivision.

The ocean entry is a hazardous area. Hazards include walking on uneven, glassy lava flow surfaces and around unstable, vertical sea cliffs. Venturing too close to an ocean entry on land or the ocean exposes you to flying debris from sudden explosive interaction between lava and water. Also, the lava delta is unstable because it is built on unconsolidated lava fragments and sand. This loose material can easily be eroded away by surf, causing the new land to become unsupported and slide into the sea. In several instances, such collapses have also incorporated parts of the older sea cliff. Additionally, the interaction of lava with the ocean creates “laze”, a corrosive seawater plume laden with hydrochloric acid and fine volcanic particles that can irritate the skin, eyes, and lungs.

Magma continues to be supplied to the lower East Rift Zone. Earthquake locations have not moved farther downrift in the past few days and the number of located earthquakes remains low. Seismicity remains relatively low with numerous small magnitude earthquakes and low amplitude background tremor.

Additional ground cracking and outbreaks of lava in the area of the active fissures are possible. Residents downslope of the region of fissures should heed all Hawaii County Civil Defense messages and warnings.

Lava fountains continue at fissure 8. The lava fountain has built a 35 m (115 ft) high spatter cone, as wells as an actively-growing spatter rampart on its eastern side. The lava channel leading from the cone was filled to the top of its levees at the time of this photo. [USGS-HVO]

Kīlauea Volcano Summit

Earthquake activity dropped after Tuesday morning’s small explosion but is slowly rising now, following the pattern of previous events of this type. Monitoring data indicate that subsidence at the summit continues. The mid-day observation flight showed additional Inward slumping of the rim and walls of Halema`uma`u.

Locally felt earthquakes are expected to continue, and further ash explosions are likely.

Over the last week, sulfur dioxide emissions from the volcano’s summit have decreased, but emission rates remain high enough to impact air quality in downwind regions. Additional bursts of gas released with intermittent explosive activity are also transported downwind and may temporarily affect air quality as well.

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Kilauea Volcano: Sporadic Explosions in Halema‘uma‘u Crater

Posted by feww on May 12, 2018

Rockfalls into the deepening vent causing explosions –HVO


TOP: At 9:06 a.m. HST (May 11, 2018), an ash plume rose from the Overlook crater at Kīlauea’s summit. Similar to recent plumes, this event was likely caused by a rockfall from the crater’s steep walls. The plume’s reddish color is most likely from altered rock and ash fragments that fell into the deepening conduit. [USGS/HVO]


TOP: At 9:17 a.m. HST, another weak ash plume rose from the Overlook Vent in Halema‘uma‘u crater, producing a slightly more energetic and darker plume. This second plume lacked the pink altered ash that was in the earlier plume, apparently consisting of more unaltered (therefore darker) rock fragments. This plume also was probably caused by rockfall into the deepening vent, not related to groundwater and steam-driven explosions. [USGS/HVO]

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KILAUEA: Sitting Atop an Active Volcano

Posted by feww on May 8, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT – USGS

Monday, May 7, 2018, 5:59 PM HST (Tuesday, May 8, 2018, 03:59 UTC)

KILAUEA VOLCANO (VNUM #332010)
19°25’16” N 155°17’13” W, Summit Elevation 4091 ft (1247 m)
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE

Lower East Rift Zone Eruption

The intermittent eruption of lava in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano continues. The location of activity today was focused on the southwest portion of the area.

This morning, two new fissure segments broke ground. The first (fissure 11) opened in a forested southwest of Leilani Estates about 9:30 am and was active for only 3 hours. The second (fissure 12) opened about 12:20 between older fissures 10 and 11. By 3:15 pm, both new fissures were [inactive] but the west end of fissure 10 was steaming heavily.

Cracks on Highway 130 widened from 7 cm to 8 cm over the course of the day and additional cracks were found just west of the highway on trend with the eruptive fissures.

–  Rates of seismicity and deformation changed little throughout the day.
–   Gas emissions likely remain elevated in the vicinity of fissures.

Kīlauea Volcano Summit

Tiltmeters at the summit of Kīlauea Volcano continue to record the deflationary trend of the past several days and the lava lake level continues to drop. Rockfalls from the steep crater walls into the retreating lake continue to produce occasional ashy plumes above Halema’uma’u crater. These plumes are expected to continue.

Earthquake activity in the summit remains elevated but has decreased over the past few days. Many of these earthquakes are related to the ongoing subsidence of the summit area and earthquakes beneath the south flank of the volcano.

Aerial view of fissure 12 at 1:15 p.m. HST. [USGS/HVO]

 

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M6.9 EQ Strikes Big Island, Hawaii

Posted by feww on May 5, 2018

PTR – 050502

Strong Earthquake Rattles Hilo, HI

EQ Details:

Magnitude: 6.9 mww
Location: 19.370°N, 155.032°W [16km SW of Leilani Estates, Hawaii; about 28km south of Hilo]
Depth: 5.0 km
2018-05-04 22:32:55 UTC

No. of Recorded Aftershocks: >160
Largest aftershock:
M 5.4 – 18km SW of Leilani Estates, Hawaii
Location: 19.342°N 155.032°W
Depth: 6.9 km
Time: 2018-05-04 21:32:44 (UTC)
[USGS]

TSUNAMI EVALUATION [PACIFIC TSUNAMI WARNING CENTER EWA BEACH HI]

  • NO Tsunami Threat from the EQ, or its aftershocks, as of posting.

 

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Strong Earthquake Strikes Guatemala Coast

Posted by feww on June 22, 2017

GPSC-081-TP

M6.8 quake strikes 23km SW of Puerto San Jose, Guatemala [USGS]

EQ Details:
Magnitude: 6.8mww
Location: 13.753°N, 90.949°W; 46.8 km depth
Time: 017-06-22; 12:31:04 UTC

FIRE-EARTH Reference: 000697 – Update 061901

Other Significant Earthquakes:

M 3.0 – 1km ESE of El Cerrito, California
37.909°N, 122.292°W; 4.6 km depth
2017-06-21, 19:00:20 UTC

M 4.5 – 28km ESE of Hawaiian Ocean View, Hawaii
18.926°N, 155.538°W; 38.1 km depth
2017-06-21, 20:09:06 UTC

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Significant Quake Shakes Big Island, Hawaii

Posted by feww on June 9, 2017

G-1709E

M5.3 earthquake strikes  18km SE of Volcano, Hawaii  -USGS

The event occurred near Kilauea Volcano and was followed by at least 2 aftershocks, as of posting, USGS reported.

Magnitude: 5.3 ml
Location: 19.330°N, 155.121°W [18km SE of Volcano, Hawaii]
Depth: 7.1 km
Time: 2017-06-08 17:01:19 UTC
USGS Felt Reports: 979
FIRE-EARTH References: BLM1 [060601]

 

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Volcano Watch – May 22, 2016

Posted by feww on May 22, 2016

How Many Volcanoes Firing?

New eruptions, ongoing activity, unrest and abnormalities reported in at least 66 volcanoes globally over the last seven days…

Latest Global Volcanic Activity

  • Awu Sangihe Islands (Indonesia)
  • Etna Sicily (Italy)
  • Fuego (Guatemala)
  • Ruapehu North Island (New Zealand)
  • Santa Maria – Santiaguito Dome Complex (Guatemala)
  • Sinabung – North Sumatra (Indonesia)


Map of Volcanoes.
Background Map: University of Michigan. Designed and enhanced by Fire Earth Blog. Click image to enlarge.

Cleveland Volcano


Landsat-8 data from 15 May 2015 at 22:17 UTC (2:17 PM AKDT) show robust steaming and high temperatures in Cleveland Volcano’s summit crater (in the shortwave IR), indicating continued unrest. The high-temperature feature is visible in this image as a red pixel. Robust steaming observed extending to the west and seen as a shadow on the lower meteorological cloud deck. Shortwave IR has very little reflectance from snow, which is why Cleveland appears blue.  Photographer/Creator: D. Schneider – URL: http://www.avo.alaska.edu/images/image.php?id=95451


Landsat-8 true color composite from Cleveland Volcano,15 May 2016, 22:17 UTC (2:17 pm AKDT), sharpened with panchromatic data. Robust steaming observed extending to the west and seen as a shadow on the lower meteorological cloud deck. Photographer/Creator: D. Schneider http://www.avo.alaska.edu/images/image.php?id=95461

Ongoing Activity

  • Aira Kyushu (Japan)
  • Alaid Kuril Islands (Russia)
  • Chirpoi Kuril Islands (Russia)
  • Cleveland Chuginadak Island (USA)
  • Colima Mexico
  • Cotopaxi Ecuador
  • Dukono Halmahera (Indonesia)
  • Kilauea Hawaiian Islands (USA)
  • Klyuchevskoy C. Kamchatka (Russia)
  • Kuchinoerabujima  Kyushu (Japan)
  • Langila New Britian (PNG)
  • Masaya Nicaragua
  • Nevado del Ruiz Colombia
  • Pavlof  Alaska (USA)
  • Sangay Ecuador
  • Sheveluch C. Kamchatka (Russia)
  • Sinabung Indonesia
  • Telica Nicaragua
  • Turrialba Costa Rica

Current Status of Indonesian Volcanoes [Badan Geologi]

Indonesian volcanoes status

Orange Alerts

  • Nishinoshima  Japan region
  • Fukutoku-Oka-no-Ba  Japan region
  • Sakurajima Kyushu (Japan)

Yellow Alerts

  • Asamayama  Japan
  • Aso Kyushu (Japan)
  • Bezymianny  Kamchatka (Russia)
  • Copahue Chile
  • Karymsky  Kamchatka (Russia)
  • Kirishimayama (Shinmoedake) Kyushu (Japan)
  • Kusatsu-Shirane  Japan
  • Mauna Loa Hawaii
  • Ontake  Japan
  • Planchón-Peteroa Volcanic Complex  Chile
  • Snow Kuril Islands  (Russia)
  • Zhupanovsky Kamchatka (Russia) 

Abnormalities Observed

  • Bulusan Philippines
  • Kanlaon Philippines
  • Taal Philippines

MAUNA LOA: The largest active volcano on Earth!

HVO Weekly Update: Thursday, May 19, 2016 20:47 UTC – Seismicity remains elevated above the long-term background level, but no significant changes were recorded over the past week. Deformation related to inflation of a magma reservoir beneath the summit and upper Southwest Rift Zone continues, with inflation recently occurring mainly in the southwestern part of the magma storage complex.

BULUSAN VOLCANO BULLETIN 22 May 2016 8:00 A.M. [Source: Philippine Institute of Volcanology and Seismology, PHIVOLCS]

Bulusan Volcano’s seismic monitoring network recorded three (3) volcanic earthquakes during the past 24 hours. Weak emission of white steam plumes that crept downslope towards southwest was observed coming from the active vents. Precise leveling survey results from April 27 to May 5, 2016 indicated slight deflationary changes of the edifice relative to February 2016, consistent with the measurements from continuous GPS data as of 30 April 2016.

Alert Level 1 (abnormal) remains in effect over Bulusan Volcano. This indicates that hydrothermal processes are underway beneath the volcano that may lead to steam-driven eruptions. The local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited due to the possibility of sudden and hazardous steam-driven or phreatic eruptions. Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as ash from any sudden phreatic eruption can be hazardous to aircraft. Furthermore, people living within valleys and along river or stream channels especially on the southwest and northwest sector of the edifice should be vigilant against sediment-laden stream flows and lahars in the event of heavy and prolonged rainfall. DOST-PHIVOLCS is closely monitoring Bulusan Volcano’s condition and any new development will be relayed to all concerned.

KANLAON VOLCANO BULLETIN 22 May 2016 8:00 A.M. [PHIVOLCS]

Kanlaon Volcano’s seismic monitoring network recorded one (1) volcanic earthquake during the past 24 hours. Moderate emission of white steam plumes that rose up to 300 meters and drifted southwest and northwest was observed. Ground deformation measurements from continuous GPS data as of 30 April 2016 indicated slight inflation of the Kanlaon edifice since December 2015.

Alert Level 1 status remains in effect over Kanlaon Volcano, which means that it is currently in a state of unrest probably driven by hydrothermal processes that could generate more minor eruptions. The local government units and the public are reminded that entry into the 4-kilometer radius Permanent Danger Zone (PDZ) is strictly prohibited due to the further possibilities of sudden and hazardous steam-driven or minor ash eruptions. Civil aviation authorities must also advise pilots to avoid flying close to the volcano’s summit as airborne ash from a sudden eruption can be hazardous to aircraft. DOST-PHIVOLCS is closely monitoring Kanlaon Volcano’s activity and any new development will be relayed to all concerned.

TAAL VOLCANO BULLETIN 22 May 2016 8:00 A.M. [PHIVOLCS]

Taal Volcano’s seismic monitoring network recorded two (2) volcanic earthquakes during the past 24 hours. Field measurements conducted on 19 May 2016 at the western sector of the Main Crater Lake yielded a slight increase in water temperature from 32.9°C to 33.0°C, a decrease in water level from 0.19 meter to 0.18 meter, and an increase in water acidity from pH 3.03 to 2.73. Precise leveling survey results from 28 March to 8 April 2016 indicated slight deflation of the edifice compared to November 2015 survey. Results from continuous GPS data as of 30 April 2016 showed deflationary trend since January 2016, however the edifice remains inflated relative to the 2014 baseline level.

Alert Level 1 remains in effect over Taal Volcano. This means that hazardous eruption is not imminent. The public, however, is reminded that the Main Crater should be strictly off-limits because sudden steam explosions may occur and high concentrations of toxic gases may accumulate. The northern portion of the Main Crater rim, in the vicinity of Daang Kastila Trail, may also become hazardous when steam emission along existing fissures suddenly increases. Furthermore, the public is also reminded that the entire Volcano Island is a Permanent Danger Zone (PDZ), and permanent settlement in the island is strongly not recommended.

Nicaragua  [INETER]

  • Telica: Intense levels of micro-seismicity and low gas emissions reported.
  • Masaya: Moderate tecto-volcanic tremors continue, representing MARS values of between 300 and 700 units. Lava lake observed in the Santiago crater.
  • Momotombo: “Low-level seismicity, with moderate gas emissions reported.  “The real-time seismic amplitude (MARS) is lower than 60 units.”
  • San Cristobal: Low-level seismicity, with moderate gas emissions observed on May 19, 2016.

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Drought Disasters Declared for Counties in Oregon, California, Nevada, Hawaii

Posted by feww on May 13, 2016

Drought destroys crops in seven counties across four U.S. states

The U.S. Department of Agriculture (USDA) has designated a total of six counties in Oregon, California and Nevada as crop disaster areas due to damages and losses caused by a recent drought. Those areas are:

Oregon. Lake, Klamath, Harney and Deschutes counties.

California. Modoc County.

Nevada. Washoe County

In a separate declaration USDA has also designated Kauai County in Hawaii as a crop disaster area due to drought.

Notes:
i. USDA trigger point for a countywide disaster declaration is 30 percent crop loss on one or more crops.

ii. The counties designated as agricultural disaster areas, as listed above, include both primary and contiguous disaster areas.

iii. Some counties may have been designated as crop disaster areas more than once due to multiple disasters.

iv. The U.S. has a total of 3,143 counties and county-equivalents.

Crop Disaster Designations – 2016

 

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Earthquakes Strike near Hawthorne, Nevada

Posted by feww on March 21, 2016

RCM

M4.3  strikes 23km ESE of Hawthorne, Nevada

Magnitude: 4.3Mw
Time: 2016-03-21 07:37:10 (UTC)
Distances:

  • 22km (14mi) ESE of Hawthorne, Nevada
  • 127km (79mi) ESE of Gardnerville Ranchos, Nevada
  • 143km (89mi) ESE of Carson City, Nevada

Aftershocks:

  • 3.3 23km ESE of Hawthorne, Nevada 2016-03-21 13:18:10 UTC depth=6.3km
  • 3.3 23km ESE of Hawthorne, Nevada 2016-03-21 10:46:49 UTC depth=6.8km

U.S. Seismicity Events Today Included :

  • M 4.6 – 13km SE of Waikoloa, Hawaii
    Location: 19.848°N 155.703°W
    Depth: 31.8 km
    Time: 2016-03-20 16:43:59 UTC
  • M 2.9 – 7km NW of Contoocook, New Hampshire
    Location: 43.263°N, 71.781°W
    Depth: 6.8 km
    Time: 2016-03-21 13:18:23 UTC
  • M 2.6 – 9km SW of Caruthersville, Missouri
    Location: 36.127°N, 89.728°W
    Depth: 9.1 km
    Time: 2016-03-20 17:23:04 UTC

Other events recorded in Alaska, California, Kansas & Oklahoma.

[Source: USGS/EHP]

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State of Emergency Declared in Hawaii over Mosquitoes

Posted by feww on February 13, 2016

Mosquitoes Become Enemy No. 1 in Hawaii

Hawaii Gov. Ige has declared a state of emergency to prevent the spread of mosquito-borne diseases, like the dengue outbreak on Hawaii Island.

“There have been no locally acquired Zika cases in the U.S. or Hawai‘i, and we’d like to keep it that way,” said Ige in a statement. “This is about getting in front of the situation across the state. I will be coordinating planning efforts with the Hawai‘i Emergency Management Agency, all county mayors and Civil Defense coordinators.”

The Department of Health has identified a new case of dengue fever, bringing the total to 255 since the outbreak began in September 2015. “On Hawai‘i Island, dengue fever cases continue to be fewer and farther between. However, the battle is not over and state continues to focus resources to break the cycle of dengue fever infection and transmission,” officials said.

Dengue Fever and Zika virus (ZIKV) share the same vector, mosquitoes of Aedes species (A. Aegypti & A. albopictus), and public health officials are concerned ZIKV could make its way to the Aloha State.

The same mosquitoes are also responsible for the spread chikungunya viruses.

 

FIRE-EARTH expects the Gulf of Mexico Border States to also declare states of emergency over the mosquitoes in the near future.

Related Links

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State of Emergency Declared in Hawaii over Dengue Fever

Posted by feww on February 9, 2016

Dengue Fever and ZIKV share the same vector: mosquitoes of Aedes species

Hawaii County has declared a state of emergency amid the growing dengue fever outbreak in the state.

“A state of emergency for Hawaii County is authorized in order to prevent the continued spread of this outbreak and to eliminate the dengue fever virus from Hawaii Island,” said the mayor.

The state Health Department had confirmed 251 cases of dengue fever on Hawaii Island, including two potentially infectious individuals.

“The decision to issue an emergency proclamation is one made by professionals,” said Hawaii Gov. Ige. “There is a continuous conversation about it, as we proceed through an event and identify a course of action.”

Dengue Fever and Zika virus (ZIKV) share the same vector, mosquitoes of Aedes species (A. Aegypti & A. albopictus), and public health officials are concerned ZIKV could make its way to the Aloha State.

The same mosquitoes are also responsible for the spread chikungunya viruses.

 

Dengue Outbreak 2015 – 2016

Dengue Fever – Hawaii Island Outbreak

The Hawaii Department of Health (HDOH) is investigating a cluster of locally-acquired cases of dengue fever on Hawaii Island (the Big Island). Dengue is not endemic to Hawaii. However, it is intermittently imported from endemic areas by infected travelers. This is the first cluster of locally-acquired dengue fever since the 2011 outbreak on Oahu.  The Big Island and the rest of Hawaii remain safe destinations for visitors and residents.

  • As of February 8, some 227 of the confirmed cases are Hawaii Island residents and 24 are visitors.
  • 206 cases have been adults; 45 have been children (<18 years of age). Onset of illness has ranged between 9/11/15 – 2/1/16.
  • A total of 1,124 reported potential cases have been excluded based on test results and/or not meeting case criteria (!)

 

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ZIKV Infection Cases Reported in Illinois

Posted by feww on January 20, 2016

Two pregnant Illinois women test positive for the Zika virus

Two pregnant Illinois residents, who recently traveled to countries where Zika virus is spreading, have tested positive for the virus, said the Illinois Department of Public Health. 

The latest development follows the case of a ZIKV infected infant in Hawaii who was born with microcephaly, on January 17, 2016.

The following statement was issued by the Illinois Health Department:

Two Illinois Residents Test Positive For Zika Virus

SPRINGFIELD (January 19, 2016). The Illinois Department of Public Health (IDPH) is alerting the public of the potential of contracting Zika virus while traveling abroad.  Zika virus is spread to people through mosquito bites, similar to West Nile virus or dengue fever.  While illness is usually mild and severe disease requiring hospitalization is uncommon, there is a possible link between Zika virus infection in pregnant women and subsequent birth defects.

Two pregnant Illinois residents who recently traveled to countries where Zika virus is found have tested positive for the virus.  Physicians are monitoring their health and pregnancies.

“There is virtually no risk to Illinois residents since you cannot contract Zika virus from another person, but only through the bite of an infected mosquito,” said IDPH Director Nirav D. Shah, M.D., J.D.  “But since this is a time of year when people travel to warmer climates and countries where Zika virus is found, we are urging residents, especially pregnant women, to take preventive measures when traveling in affected countries and check health travel advisories.”

The Centers for Disease Control and Prevention (CDC) issued a travel alert (Level 2-Practice Enhanced Precautions) for people traveling to regions and certain countries where Zika virus transmission is ongoing, including:

Brazil, Colombia, El Salvador, French Guiana, Guatemala, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Suriname, Venezuela, and the Commonwealth of Puerto Rico. [See below for the full list.]

This alert follows reports in Brazil of microcephaly and other poor pregnancy outcomes in babies of mothers who were infected with Zika virus while pregnant.  However, additional studies are needed to further characterize this relationship.

Until more is known, CDC recommends that pregnant women in any trimester should consider postponing travel to the areas where Zika virus transmission is ongoing.  Pregnant women, women trying to become pregnant, or women who are thinking about becoming pregnant and must travel to one of these areas should talk with their doctor or other health care provider first and strictly follow steps to avoid mosquito bites during the trip.

The most common symptoms of Zika are fever, rash, joint pain, or conjunctivitis (red eyes).  Symptoms can last from several days to weeks.  There is no vaccine to prevent or medicine to treat Zika virus infection.

When traveling to countries where Zika virus has been reported, all travelers should take steps to prevent mosquito bites, such as using use insect repellent, wearing long sleeves and pants, and staying in places with air conditioning or that use window and door screens.  More information about Zika virus can be found on the CDC website.  CDC has also developed interim Zika virus guidelines for health care providers in the United State caring for pregnant women.

Countries with past or current evidence of Zika virus transmission


Countries that have past or current evidence of Zika virus transmission —CDC

Countries that have past or current evidence of Zika virus transmission

AFRICA: Angola*, Burkina Faso, Cameroon, Cape Verde, Central African Republic, Cote d’Ivoire, Egypt*, Ethiopia*, Gabon, Gambia*, Kenya*, Nigeria, Senegal, Sierra Leone*, Somalia*, Tanzania*, Uganda and Zambia*.
AMERICAS: Brazil, Colombia, El Salvador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Puerto Rico, Suriname and Venezuela.

OCEANIA/PACIFIC ISLANDS: Cook Islands, Easter Island, Federated States of Micronesia, French Polynesia, New Caledonia, Samoa, Solomon Islands and Vanuatu.

ASIA: Cambodia, India*, Indonesia, Malaysia, Pakistan*, Philippines, Thailand and Vietnam*.

[*For these countries, the only evidence of Zika virus transmission is from studies that detected Zika virus antibodies in healthy people.  These studies cannot determine where the people were infected or if they were infected with Zika virus because the antibodies may have resulted from infections with other closely related viruses, such as dengue virus.]

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Baby Born with Brain Damage in Hawaii Infected by Zika Virus

Posted by feww on January 17, 2016

CDC confirms baby born in Hawaii with microcephaly

A baby born with birth defect in an Oahu hospital has tested positive for the Zika virus (ZKIV), the U.S. Centers for Disease Control and Prevention (CDC) has confirmed.

The infant suffers from microcephaly, a rare condition that affects the brain, retarding its growth and leaving the skull size abnormally small.

The baby’s mother acquired the virus while living in Brazil in May 2015 and the baby was likely infected in the womb, said Hawaiian state health officials and the CDC.

The news comes as the Hawaii struggles to contain its largest ever dengue fever outbreak. Most of the infection cases, also transmitted through mosquito bites, have been reported in the Big Island of Hawaii.

CDC has already Issued Travel Warnings as Zika Virus Epidemic Continues to Spread in  Latin America and Caribbean countries.

Zika, a dangerous tropical disease linked to birth defects, is spreading in Brazil, Colombia, El Salvador, French Guiana, Guatemala, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Suriname, Venezuela, and the Commonwealth of Puerto Rico.

Countries with past or current evidence of Zika virus transmission


Countries that have past or current evidence of Zika virus transmission (See below for list)

Countries that have past or current evidence of Zika virus transmission

AFRICA: Angola*, Burkina Faso, Cameroon, Cape Verde, Central African Republic, Cote d’Ivoire, Egypt*, Ethiopia*, Gabon, Gambia*, Kenya*, Nigeria, Senegal, Sierra Leone*, Somalia*, Tanzania*, Uganda and Zambia*.
AMERICAS: Brazil, Colombia, El Salvador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Martinique, Mexico, Panama, Paraguay, Puerto Rico, Suriname and Venezuela.

OCEANIA/PACIFIC ISLANDS: Cook Islands, Easter Island, Federated States of Micronesia, French Polynesia, New Caledonia, Samoa, Solomon Islands and Vanuatu.

ASIA: Cambodia, India*, Indonesia, Malaysia, Pakistan*, Philippines, Thailand and Vietnam*.

[*For these countries, the only evidence of Zika virus transmission is from studies that detected Zika virus antibodies in healthy people.  These studies cannot determine where the people were infected or if they were infected with Zika virus because the antibodies may have resulted from infections with other closely related viruses, such as dengue virus.]

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Intense Clusters of Low-Level Seismicity Continue to Plague CA, AK

Posted by feww on January 4, 2016

Thousands of earthquakes of all sizes strike Alaska, California, Hawaii

More than 6,000 earthquakes of all sizes have occurred in Alaska, California and Hawaii in the 30 days to January 3, 2016 (23:59:59 UTC).

The following images and data are sourced from USGS/EHP EQ archive.

ca events 30 days
4,184 Earthquakes of ALL sizes in map area (30 days)

ak seismicity 30 days
2,386 Earthquakes of ALL sizes in map area (30 days)

Hawaii and Global Totals

The Hawaii total for the corresponding period was 186, with 7,855 events recorded globally.

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Hawaii Declares Disaster Emergency Over Homelessness

Posted by feww on October 19, 2015

Hawaii has 7,620 homeless people

Hawaii Gov. Ige has signed a Disaster Emergency Proclamation to deal with the state’s homelessness disaster emergency.

In his Disaster Emergency Proclamation Ige admits that a recent statewide homeless count has highlighted a significant increase in homelessness for the entire State of Hawaii.

“…count of homeless individuals and families throughout Hawaii, estimates the total number of homeless individuals statewide is 7,620… the number of unsheltered homeless individuals is 3,843… the statewide Count estimates that there are 185 unsheltered families, which consist of a total of 439 unsheltered children throughout the state.”

“these unsheltered homeless individuals and families are living on privately owned and public lands, including the streets, public parks, beaches, and elsewhere on each island… these unsheltered homeless individuals and families are without access to portable toilets, bathrooms, showers and clean wate… these unsheltered homeless individuals and families require health and social services in order to maintain themselves safely and in reasonable health,” he said.

The Disaster Emergency Proclamation relief period has already commenced this week, and will last for sixty days, unless terminated by a separate proclamation, whichever occurs first, Ige said.

Full text of the governor’s Proclamation is posted at

http://governor.hawaii.gov/wp-content/uploads/2015/10/10.16-EMERGENCY-PROC-HOMELESSNESS-.pdf

Tourism in the Hawaiian Islands

The largest source of private capital into the Hawaiian Islands, tourism contributed at least $11.4 billion in visitor spending and $1 billion in tax revenue last year, according to Hawai’i Tourism Authority (HTA). “The HTA anticipates visitor spending to reach $12.6 billion, with $1.1 billion in tax revenue for 2011, and will work together with the industry to ensure that we continue to build on this positive momentum.”

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Third Ever Global Coral Bleaching Event Declared

Posted by feww on October 8, 2015

Bleaching intensifies in Hawaii, high ocean temperatures threaten Caribbean corals: NOAA

NOAA has declared the third global coral bleaching event ever known, as record high ocean temperatures cause widespread coral bleaching across Hawaii. The researchers also confirmed the same stressful conditions are now expanding to the Caribbean, said a report released today.

Waters are warming in the Caribbean, threatening coral in Puerto Rico and the U.S. Virgin Islands, NOAA scientists said. Coral bleaching began in the Florida Keys and South Florida in August, but now scientists expect bleaching conditions there to diminish.

“The coral bleaching and disease, brought on by climate change and coupled with events like the current El Niño, are the largest and most pervasive threats to coral reefs around the world,” said NOAA’s Coral Reef Watch coordinator. “As a result, we are losing huge areas of coral across the U.S., as well as internationally. What really has us concerned is this event has been going on for more than a year and our preliminary model projections indicate it’s likely to last well into 2016.”

“Last year’s bleaching at Lisianski Atoll was the worst our scientists have seen,” said NOAA’s deputy superintendent for the monument. “Almost one and a half square miles of reef bleached last year and are now completely dead.”

Exposure to stressful environmental conditions such as high temperatures causes coral bleaching.  Stress causes corals to reject the symbiotic algae living in their tissues, causing corals to turn white or pale, leaving the coral without a major source of food, and making it more susceptible to disease.

The first ever recorded global bleaching occurred in 1998, followed by a second event in 2010, said the report.


October 2015-January 2016: NOAA’s standard 4-month bleaching outlook shows a threat of bleaching continuing in the Caribbean, Hawaii and Kiribati, and potentially expanding into the Republic of the Marshall Islands. (Credit: NOAA)

Report posted at NOAA declares third ever global coral bleaching event

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Significant Quake Strikes near Volcano, Hawaii

Posted by feww on June 28, 2015

M5.2 quake strikes S of Volcano, Hawaii

Centered at 19.335°N, 155.209°W, about  the quake struck about 11km (7mi) SSE of Volcano, Hawaii at a depth of 8.6 km (5.3 mi), reported USGS/EHP.

At least one aftershock measuring 3.1Mw was reported, as of posting.

EQ Details

Magnitude: 5.2Mw
Location: 19.335°N, 155.209°W; depth = 8.6 km (5.3 mi)
Time: 2015-06-28 08:10:10 (UTC)
Nearby Cities

  • 11km (7mi) SSE of Volcano, Hawaii
  • 37km (23mi) SW of Hawaiian Paradise Park, Hawaii
  • 45km (28mi) SSW of Hilo, Hawaii
  • 89km (55mi) ESE of Kailua-Kona, Hawaii
  • 352km (219mi) SE of Honolulu, Hawaii

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M4.8 Quake Strikes Nevada

Posted by feww on May 23, 2015

Earthquake clusters strike Nevada,  California, Alaska, Oklahoma, Hawaii, Puerto Rico

A 4.8-magnitude earthquake, centered at 37.292°N, 114.655°W struck Nevada at a depth of 4.0 km (2.5 mi), USGS/EHP reported.

The quake, originally reported as a magnitude 5.4 event, was followed by dozens of smaller aftershocks, most of them occurring locally with several reported in neighboring states of California and Utah.

EQ Details
Magnitude: 4.8Mw
Location: 37.292°N, 114.655°W; Depth= 4.0 km
Time: 2015-05-22 @ 18:47:42UTC
Nearby Cities:

  • 37km (23mi) SSW of Caliente, Nevada
  • 75km (47mi) NW of Mesquite, Nevada
  • 97km (60mi) WNW of Saint George, Utah
  • 103km (64mi) W of Washington, Utah
  • 130km (82mi) NNW of Las Vegas [FIRE-EARTH projection]
  • 453km (281mi) SSW of Salt Lake City, Utah

us quakes 22-23may2015
1 Day, All Magnitudes Worldwide: 234 earthquakes – 218 earthquakes in map area – Download Updated: 2015-05-23 at 11:20:44UTC [USGS/EHP]

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Earthquakes Strike 11 U.S. States

Posted by feww on November 25, 2014

HEIGHTENED GLOBAL SEISMICITY
SEISMIC HAZARDS
SCENARIOS 704, 703,  700, [500,] 09, 08, 07, 02
.

Multiple earthquakes strike 11 states, Puerto Rico and US Virgin Islands

At least 188 earthquakes measuring up to magnitude 4.0Mw have struck 11 states, Puerto Rico and US Virgin Islands  over the past 24 hours.

The largest quake, as of posting, measured 4.0Mw, occurring 2km (1mi) SE of Medford, Oklahoma, according to USGS/EHP.

Earthquakes also struck Alaska, California, Hawaii, Montana, Nevada, Oregon, Tennessee, Texas, Washington and Wyoming.

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Lava Flow from Kilauea Advancing AGAIN on Big Island Communities

Posted by feww on October 7, 2014

VOLCANIC HAZARDS
KILAUEA JUNE 27TH LAVA FLOW
STATE OF EMERGENCY PROCLAMATION
MASS EVACUATIONS
LOSS OF HABITAT
CROP DESTRUCTION
SCENARIOS 989, 900, 797, 787, 707, 444, 070, 047, 017, 07, 02
.

Kilauea Lava Flow:  June 27th lava flow continues to advance NE at 120 m/day

The lava flow out of the continuously erupting Kilauea Volcano is slowly advancing downslope toward the town of Pāhoa (population: ~1,000) on the Big Island.

About 4,500 people could be affected by the lava flow in the coming days.

Tuesday Oct0ber 7, 2014 (UTC). Civil Defense Message: “This morning’s assessment shows that the flow front continues to be active and has advanced approximately 150 yards since yesterday.  The narrow flow front is moving along the tree line and the burning activity is producing a significant amount of smoke.  There is no brush fire threat at this time and the burning is limited to the edges of the flow only.  Due to a light southwest wind this morning the vog and smoke conditions were moderate to heavy across lower Puna to Hilo.”

[Note: Vog, a type of air pollution, is formed when sulfur dioxide and other gases and particles emitted by an erupting volcano react with oxygen and air moisture in the sunlight.]

Flow front continues advancing northeast, triggers brush fire. The June 27th lava flow remains active, and the flow front continues to advance towards the northeast along the forest boundary. Today, the flow front consisted of a narrow lobe moving through thick forest. The flow front was 1.7 km (1.1 miles) upslope of Apaʻa St., and 2.7 km (1.7 miles) from Pāhoa Village Road. The lava flow also triggered a brush fire that was active north of the flow front Monday afternoon local time [HAST= UTC -10 hrs.]

Kilauea Status Reports

Issued: Monday, October 6, 2014, 6:42 PM HST (Tuesday, 2014/10/07/04:42UTC)
Source: Hawaiian Volcano Observatory (HVO)
Notice Number: 2014/H13
Location: N 19 deg 25 min, W 155 deg 17 min
Elevation: 4091 ft (1,247 m)
Area: HI Hawaii and Pacific Ocean
Current Volcano Alert Level: WARNING
Current Aviation Color Code: ORANGE

Volcanic Activity Summary: The June 27th flow remains active, with a narrow flow about 115 m (230 ft) wide moving downslope about 120 m/day (390 ft/day) since October 3.

At the average rate of advancement of 120 m/day, the lava could reach Apa`a St. in about 16 days. The advance rate of the June 27th flow has varied significantly during the past month, meaning this projection is subject to change. HVO’s next overflight is scheduled for Wednesday, October 8.

Recent Observations by HVO: The lava flow has continued to advance northeast since October 3 at about 120 m/day (390 ft/day). The leading edge is now about 1.7 km (1.1 mi) straight-line distance from Apa`a St.

Hazard Analysis by HVO: The lava flow from the Pu‘u ‘Ō‘ō vent is active, and lava is being supplied to the flow front, which is slowly advancing downslope toward Pāhoa town, which is located  in the Puna District of the County of Hawai`i.

Puʻu ʻŌʻō Observations: There was little net change in ground tilt at Pu’u O’o over the past day. Glow was visible overnight above several outgassing openings in the crater floor. The most recent sulfur-dioxide emission-rate measurement for the East Rift Zone was 550 tonnes per day (from all sources) on September 25, 2014. Seismic tremor is low and constant.

Summit Observations: Deflationary tilt at Kīlauea’s summit continues this morning along with a decrease in the lava lake level at the summit vent. There was no major change in seismicity on Kilauea over the past day; seismic tremor at the summit remained low and varied with changes in spattering on the surface of the lava lake. GPS receivers spanning the summit caldera recorded about 5 cm (2 in) of extension between early May and early July. Since then, little significant extension or contraction has occurred. During the week ending on September 30, 2014, the elevated summit sulfur-dioxide emission rate was measured at 3,600–5,200 tonnes/day (see caveat below), and a small amount of particulate material was carried aloft by the plume.

Remarks [Source: HVO] : The Pu‘u ‘Ō‘ō vent in the East Rift Zone of Kīlauea Volcano began erupting on January 3, 1983, and has continued erupting for more than 31 years, with the majority of lava flows advancing to the south. Over the past two years, lava flows have issued from the vent toward the northeast. The June 27th flow is the most recent of these flows and the first to threaten a residential area since 2010-2011. On June 27, 2014, new vents opened on the northeast flank of the Pu‘u ‘Ō‘ō cone and fed a narrow lava flow to the east-northeast. On August 18, the flow entered a ground crack, traveled underground for several days, then resurfaced to form a small lava pad. This sequence was repeated three more times over the following days with lava entering and filling other cracks before reappearing at the surface, in two of the cases farther downslope. Lava emerged from the last crack on September 6, forming a surface flow that initially moved to the north, then to the northeast, at a rate of 400 m/day (1,300 ft/day). The flow slowed thereafter and, between September 12 and 19, the rate of advancement varied, averaging 225 m/day (740 ft/day). The flow front stalled by September 22, but new breakouts behind the flow front began to push forward, overtaking the stalled front on September 29 and advancing 120 m/day (390 ft) between October 3 and 6. [Source: HVO]

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Global Disasters/ Significant Events – September 13, 2014

Posted by feww on September 13, 2014

EXTREME WEATHER & CLIMATIC HAZARDS
NATIONAL DISASTER DECLARATION
STATES OF EMERGENCY
MAJOR CATASTROPHES
EXTREME RAIN EVENTS
SEVERE FLOODING
EARTHQUAKE

MASS EVACUATIONS
SCENARIOS 900, 444, 111, 078, 070, 066, 023, 09, 04, 02
.

Major Disaster Declared in Hawaii

The White House has declared a major disaster exists in the State of Hawaii in the area affected by Tropical Storm ISELLE  during the period of August 7-9, 2014.

Tropical Storm ISELLE caused significant damage in the counties of Hawaii and Maui.

On September 5, the Hawai‘i County Mayor signed a state of emergency proclamation lava flow in the Wao Kele O Puna area extended to less than 1.5km from the edge of the Ka‘ohe Homesteads subdivision, said the mayor’s office.

Major Disaster Declared in California

The White House has declared a major disaster exists in the State of California in the area affected by an earthquake during the period of August 24 to September 7, 2014.

The quake caused significant damage in the counties of Napa and Solano.

Major Disaster Declared in Guam

The White House has declared a major disaster exists in the Territory of Guam in the area affected by Tropical Storm HALONG during the period of July 28-31, 2014.

State of Emergency Declared in Mississippi’s DeSoto County

Gov. Bryant has declared a state of emergency in Mississippi’s DeSoto County after a line of severe storms pounded the northern part of the state and Tennessee, said a report.

Residents at the Savannah Creek Apartments in Southaven, Miss., were evacuated by the U.S. Coast Guard using rafts, the report said.

Up to seven inches of rain fell over a 100-hour period inundating scores of homes and roads Thursday, with the the cities of Southaven and Horn Lake being the worst hit areas.

St. John Parish School Board Declares State of Emergency

The School Board in St. John the Baptist Parish, Louisiana, has declared a state of emergency after a deadly brain-eating amoeba was found in the water supply in August, said a report.

The amoeba is only dangerous if it gets into the nasal cavity, throught which it can reach the brain, according to Louisiana Department of Health and Hospitals.

Death Toll Continues to Climb in Pakistan-India Floods

Extreme Rain Events and widespread flooding have killed at least 600 people in Pakistan and India, injuring hundreds more across the two countries, and affecting millions of others.

Meantime, Water levels in north Kashmir continued to rise, causing major concern, said Jammu & Kashmir chief minister on Saturday.

Crops over millions of hectares have been destroyed or damaged.

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Significant Quake, Tropical Storm ISELLE Strike Hawaii

Posted by feww on August 8, 2014

EXTREME WEATHER & CLIMATIC HAZARDS
SEISMIC HAZARD
SCENARIOS 888, 066, 055, 024, 023, 09, 08, 07
.

Big Island Struck by Significant Earthquake, TS ISELLE

Centered at 20.079°N, 155.793°W, a magnitude 4.5 quake struck about 12km WNW of Waimea, Hawaii at a depth of 16.8km (10.4mi, at 16:24:04 UTC on Friday.

Meantime, Tropical Storm ISELLE battered the island, knocking down trees and power lines, and forcing more than 1,200 people to evacuate their homes.

The second of two major storms, the more powerful Hurricane JULIO, is headed directly toward the archipelago.

JULIO has been upgraded to a Category 3 hurricane, with maximum sustained winds of about 195 km/h, moving toward the island at about 25 km/h.

Hawaii Gov.  Abercrombie signed an emergency proclamation on Wednesday in anticipation of the arrival of the two tropical storms.

“The proclamation, which includes the entire state, activates the Major Disaster Fund set aside by the Legislature for disaster relief. It also allows easier access to emergency resources at the state and federal levels, along with the suspension of certain laws as needed for emergency purposes,” said a statement posted on his website.

The disaster emergency relief period for the proclamation continues through August 15, 2014.


IMPORTANT NOTICE: FIRE-EARTH EQ Forecasts – For detailed FIRE-EARTH Earthquake Forecasts tune into FIRE-EARTH Reports daily @ 06:32UTC.


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Intense Seismicity Resumes in Alaska, California, Hawaii, Oklahoma

Posted by feww on July 13, 2014

SEISMIC HAZARD
HEIGHTENED GLOBAL SEISMICITY
INTENSE GEOTHERMAL ACTIVITY
SCENARIOS 08, 07
.

95 Percent of 1 Day, All Magnitudes Quakes Strike U.S.

Some 170 of 179 all magnitudes quakes have struck the U.S. [Puerto Rico included] in the past 24 hours, as of posting

Oklahoma

At least 8 quakes have struck Oklahoma, in the past 24 hours including a magnitude 4.3 shock, which occurred 8km SSW of Langston.

California 

Intense low-level seismicity has resumed in California with dozens of shocks occurring throughout the states and neighboring Nevada.

Alaska

Heightened low-level seismicity has also been recorded in Alaska, with the largest quake measuring magnitude 3.1, which occurred 38km NNE of Coldfoot, Alaska.

Related Links

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