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Posts Tagged ‘Alaska’

Strong Earthquake Rattles Buldir Island, Alaska

Posted by feww on October 9, 2017

Heba-261M

M6.6 earthquake strikes 60km E of Buldir Island, Alaska –USGS

Magnitude:  6.6 mww  (uncertainty: ± 0.1)
Location: 52.450°N, 176.808°E (uncertainty: ± 9.1 km)
Depth: 111.8 km   (uncertainty: ± 8.3)
Origin Time: 2017-10-08 22:34:33.960 UTC
Number of Phases: 67
Minimum Distance: 186.2 km (1.67°)
Travel Time Residual: 0.79 s
Azimuthal Gap: 72°
FE Region RAT ISLANDS, ALEUTIAN ISLANDS, ALASKA
Review Status: REVIEWED
Catalog US (us2000b2vq) -USGS

M6.3 quake strikes Balleny Islands region

Magnitude: 6.3 mww (± 0.1)
Location: 61.743°S, 154.553°E (± 10.6 km)
Depth: 10.0 km (± 1.9)
Origin Time: 2017-10-08 20:48:58.720 UTC

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Strong Earthquake Strikes Kazakhstan

Posted by feww on August 9, 2017

RES-628G

M6.3 quake occurs 107km SSE of Dostyq, Kazakhstan

The event was followed by at least 5 aftershocks measuring 5.2, 5.3, 4.5 and 4.5mb respectively, as of this report.

EQD

Magnitude: 6.3mww
Location: 44.323°N 82.837°E  [- 107km SSE of Dostyq, Kazakhstan]
Depth: 25.9 km
Time: 23:27:53 UTC, 2017-08-08

Other Significant EQs:

Magnitude: 5.3mww
Location: 36.955°N, 27.561°E [14km SE of Bodrum, Turkey]
Depth: 10.0 km
Time: 2017-08-08 07:42:22 (UTC)

Magnitude: 5.2mb
Location: 52.616°N, 172.600°E [47km WSW of Attu Station, Alaska]
Depth: 34.9 km
Time: 2017-08-08 @ 21:46:50 (UTC)

[USGS]

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34 Wildfires Burning ¼ Million Acres across 12 States

Posted by feww on July 1, 2017

Large fire activity continues across 12 states from Alaska to Florida

National Preparedness was raised to Level 3 on  June 28 at 2:00 pm MDT (on a scale from 1 to 5)

Daily statistics Saturday, July 1, 2017 – 05:30 MT [NIFC]

Number of active large fires: 34
[Total number includes full suppression and resource managed fires. Total does not include individual fires within complexes.]

Acres from active fires: 249,029

States currently reporting large fires:
Alaska (3)
Arizona (7)
California (5)
Colorado (1)
Florida (1)
Idaho (2)
Nevada (2)
New Mexico (5)
Oregon (2)
Texas (1)
Utah (1)
Washington (4)

Year-to-date statistics 2017 (1/1/17 – 7/1/17)

  • Fires: 30,000
  • Acres: 2,833,498 [Up 34% YOY]

2016 (1/1/16 – 6/30/16)

  • Fires: 25,657
  • Acres: 2,110,041

Annual average prior 10 years 2006-2016

  • Fires: 32,587
  • Acres: 2,022,815
Prescribed Fires and Acres Year-to-Date
  • Fires: 60,526
  • Acres: 2,864,796

Canada:

YTD: 1,640 fires; 421,570 acres [170,676 hectares]

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FIRE-EARTH Focus: Alaska

Posted by feww on June 23, 2017

  • All Groups

FIRE-EARTH Focus: Alaska

[Prepared by FIRE-EARTH Science Team.]

  • Details via FIRE-EARTH PULSARS.

 

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Powerful Quake Strikes NW of Near Islands, Alaska

Posted by feww on June 3, 2017

G-209D

[EQ details are subject to multiple updates, due to USGS personnels’ inexperience and other internal factors. Editor]

M 6.8 – 203km NW of Attu Station, Alaska [USGS]

Initially, the quake was reported incorrectly as a 6.9-magnitude event, striking at a depth of 30.6km.

Magnitude: 6.8 mww
54.082°N, 170.930°E [203km NW of Attu Station, Alaska]
Depth: 10.0 km
Time: 2017-06-02 22:24:48 UTC
FIRE-EARTH References:  DRN1000104 – 052701

Aftershocks [as of posting]
M5.2
53.841°N 170.987°E [183km NW of Attu Station, Alaska]
10.0 km
2017-06-02 22:32:37 (UTC)

M4.1
180km NW of Attu Station, Alaska
10.0 km
2017-06-03 01:28:32 (UTC)

Papua New Guinea
M 5.9
Location: 4.726°S, 145.128°E [92km NW of Madang, Papua New Guinea]
Depth: 190.9 km
Time: 2017-06-02 23:48:17 (UTC)

Japan Region
M 5.1
Location: 24.327°N, 126.213°E [107km ESE of Hirara, Japan]
Depth: 31.4 km
Time: 2017-06-02 17:26:31 (UTC)

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Intense Seismicity Continues Near Tanaga Volcano (US-AK)

Posted by feww on May 10, 2017

G-113E

Strong aftershock occurs near Tanaga Volcano

The aftershock was one of dozens to follow the strong quake that struck the area on June 8. 

Earthquake Details:

M 5.9 [USGS]
51.680°N, 178.383°W [28km SW of Tanaga Volcano, Alaska]
10.0 km depth
2017-05-10 07:59:57 UTC

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Intense Seismicity Occurring Near Tanaga Volcano (US-AK)

Posted by feww on May 9, 2017

G-057k

Magnitude 6.2 earthquake strikes WSW of Tanaga Volcano, Alaska

The strong quake was followed by dozens of aftershocks, but it did NOT generate a destructive tsunami.

Earthquake Details:

M 6.2 [USGS]
51.755°N, 178.636°W [ 37km WSW of Tanaga Volcano, Alaska ]
10.0 km depth
2017-05-08 17:00:47 UTC

  • Seismic analysis and forecast are available from FIRE-EARTH PULSARS.

List of Aftershocks ≥ M4.5:

M4.5
30km SSW of Tanaga Volcano, Alaska; 2017-05-08 23:43:57 (UTC); 38.0 km

M4.5
38km S of Tanaga Volcano, Alaska; 2017-05-08 22:22:28 (UTC); 10.0 km

M4.9
38km SW of Tanaga Volcano, Alaska; 2017-05-08 21:53:08 (UTC); 10.0 km

M4.5
31km SW of Tanaga Volcano, Alaska; 2017-05-08 21:52:45 (UTC); 9.4 km

M4.6
35km SW of Tanaga Volcano, Alaska; 2017-05-08 21:25:22 (UTC); 10.0 km

M4.7
32km SW of Tanaga Volcano, Alaska; 2017-05-08 20:39:50 (UTC); 10.0 km

M4.8
36km SSW of Tanaga Volcano, Alaska; 2017-05-08 20:23:15 (UTC); 29.0 km

M5.0
34km SSW of Tanaga Volcano, Alaska; 2017-05-08 19:53:19 (UTC); 10.0 km

M4.6
39km SW of Tanaga Volcano, Alaska; 2017-05-08 17:39:17 (UTC); 10.0 km

M5.2
32km WSW of Tanaga Volcano, Alaska; 2017-05-08 17:08:33 (UTC); 10.0 km

M6.2
37km WSW of Tanaga Volcano, Alaska; 2017-05-08 17:00:47 (UTC); 10.0 km

M5.9
88km SSW of Adak, Alaska; 2017-05-08 15:47:30 (UTC); 22.8 km

M5.7
94km SSW of Adak, Alaska; 2017-05-08 15:31:26 (UTC); 17.0 km

M4.5
37km SW of Tanaga Volcano, Alaska; 2017-05-03 18:45:12 (UTC); 4.9 km

 

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Intense Seismic Activity Rocks BC, Canada

Posted by feww on May 1, 2017

Seismic Cluster Striking Datlaska Range, British Columbia

An intense seismic cluster is occurring in Datlaska Range, BC, with an average distance of about 80km WNW of Skagway, Alaska, USGS/EHP reported.

At least 62 shocks of all magnitudes have occurred, as of posting, including the following:

M: 6.3mww
L: 59.744°N, 136.702°W [84km WNW of Skagway, Alaska]
D: 10.0 km
T: 14:18:15 UTC on 2017-05-01

M: 6.2mww
L: 59.744°N, 136.702°W [88km WNW of Skagway, Alaska]
D: 2.2 km
T: 12:31:54 UTC on 2017-05-01

  • Seismic analysis, forecast and latest updates are available from FIRE-EARTH PULSARS.

 

 

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Trump Signs Executive Order Authorizing Offshore Drilling

Posted by feww on April 28, 2017

  • CJ
  • EAC
  • OCT
  • WRK

FIRE-EARTH Focus: More Nails in Earth’s Coffin

The conman in the White House has signed an executive order authorizing drilling off the coast of Alaska, and other offshore locations in the Atlantic and Pacific oceans.

[Issued by FIRE-EARTH Science Team.]

  • Details of scenarios are available from FIRE-EARTH PULSARS.

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Fisheries Disasters Declared for Nine West Coast Species

Posted by feww on January 19, 2017

“Sudden and unexpected large decreases in fish stock biomass…”

Commercial fishery disasters have been declared for nine salmon and crab fisheries in Alaska, California and Washington, according to the U.S. Department of Commerce.

Each of the following fisheries experienced “sudden and unexpected large decreases in fish stock biomass due to unusual ocean and climate conditions,” NOAA said.

In Alaska:

  • Gulf of Alaska pink salmon fisheries (2016)

In California:

  • California Dungeness and rock crab fishery (2015-2016)
  • Yurok Tribe Klamath River Chinook salmon fishery (2016)

In Washington:

  • Fraser River Makah Tribe and Lower Elwha Klallam Tribe sockeye salmon fisheries (2014)
  • Grays Harbor and Willapa Bay non-treaty coho salmon fishery (2015)
  • Nisqually Indian Tribe, Jamestown S’Klallam Tribe, Port Gamble S’Klallam Tribe, and Squaxin Island Tribe South Puget Sound salmon fisheries (2015)
  • Quinault Indian Nation Grays Harbor and Queets River coho salmon fishery (2015)
  • Quileute Tribe Dungeness crab fishery (2015-2016)
  • Ocean salmon troll fishery (2016)

Additional details are available from the following sources:

http://www.noaa.gov/news/commerce-secretary-pritzker-declares-fisheries-disasters-for-nine-west-coast-species

http://www.fisheries.noaa.gov/sfa/management/disaster/index.html

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Selected Seismicity – June 24, 2019

Posted by feww on June 24, 2016

M5.9 strike 102km SSE of Yonakuni, Japan Region

Location: 23.614°N 123.386°E
Depth: 10.0 km
Time: 2016-06-23 21:05:29 UTC

M2.9 – 1km NW of Lakeland South, Washington
Location: 47.286°N 122.292°W
Depth: 22.0 km
Time: 2016-06-24 08:38:34 UTC

M4.9 – 89km S of Semisopochnoi Island, Alaska
Location: 51.158°N 179.423°E
Depth: 35.0 km
Time: 2016-06-24 09:23:02 UTC

M4.4 – 13km N of Aratoca, Colombia
Location: 6.813°N 73.028°W
Depth: 147.0 km
Time: 2016-06-23 22:28:55 UTC

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Earthquakes Strike Guatemala, Alaska, Montana, Nevada

Posted by feww on June 15, 2016

M5.7 quake strikes SW of Guatemala City

Magnitude: 5.7Mw [EMSC]
Location: 14.22 N ; 91.44 W
Depth: 100km [77.5km USGS/EHP]
Date/ time: 2016-06-15 13:46:58.7 UTC
Distances:

  • 110 km SW of Guatemala City, Guatemala [pop: 994,938]
  • 35 km S of Mazatenango, Guatemala [ pop: 44,132 ]
  • 11 km SW of Pueblo Nuevo Tiquisate, Guatemala [pop: 18,189]

Alaska
M5.1 – 39km SW of Adak, Alaska
Location: 51.611°N 177.033°W
Depth: 48.2 km
Time: 2016-06-14 17:13:26 UTC

Montana
M4.0 – 52km W of West Yellowstone, Montana
Location: 44.733°N 111.765°W
Depth: 9.7km
Time: 2016-06-14 14:35:28 UTC

Nevada
M3.7 – 17km SSE of Gabbs, Nevada
Location: 38.721°N 117.842°W
Depth: 9.9 km
Time: 2016-06-15 10:12:24 UTC

Other Significant Seismicity

Afghanistan
M5.0 – 43km W of `Alaqahdari-ye Kiran wa Munjan, Afghanistan
Location: 36.097°N 70.301°E
Depth: 112.1 km
Time: 2016-06-15 09:02:16 UTC

Indonesia
M5.6 – 194km ESE of Enarotali, Indonesia
Location: 4.606°S 137.965°E
Depth: 10.0 km
Time: 2016-06-14 22:09:26 UTC

Japan
M5.6 – 171km SSE of Naze, Japan
Location: 26.948°N 130.188°E
Depth: 6.0 km
Time: 2016-06-14 15:01:56 UTC

Vanuatu
M5.2 – 66km NW of Sola, Vanuatu
Location: 13.428°S 167.147°E
Depth: 222.4 km
Time: 2016-06-15 13:31:17 UTC

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Strong Earthquake Strikes SSW of Mt Veniaminof, Alaska

Posted by feww on June 1, 2016

M5.8 strikes 85km S of Chignik Lake, Alaska

Centered at 55.502°N, 158.538°W the quake struck at a depth of 35.8 km (22.3 mi), reported USGS/EHP.

EQ Details
Magnitude: 5.8Mw
Location: 55.502°N, 158.538°W
Depth: 35.8km
Time:2016-05-31 20:51:22 (UTC)
Distances:

  • 85.0 km (52.8 mi) SSW of Mt Veniaminof, Alaska
  • 85.0 km (52.8 mi) S of Chignik Lake, Alaska
  • 811.0 km (503.9 mi) SW of Anchorage, Alaska
  • 846.0 km (525.7 mi) SW of Knik-Fairview, Alaska

Veniaminof Volcano

mt veniaminof
Steam rising from the intracaldera cinder cone at Veniaminof volcano in the waning stages of the 1983 to 1984 eruption. Cooling lava flows fill a pit about 2.3×1.0 km that has been melted in the summit ice cap. Aerial view looking northeast. Photograph by M.E. Yount, U.S. Geological Survey, January 23, 1984.

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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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Significant Quakes Occur off Aleutian Islands, Alaska

Posted by feww on April 12, 2016

Significant earthquakes strike near Kiska Volcano

Details of the Latest EQ

Magnitude: 5.6Mw  – 73km WSW of Kiska Volcano, Alaska
Location: 51.843°N, 176.623°E [73km WSW of Kiska Volcano, Alaska]
Depth: 21.5km
Time: 2016-04-11 20:10:35 UTC

Earlier EQ

Magnitude: 5.4Mw
Location: 51.032°N, 179.621°E [92km WSW of Amatignak Island, Alaska]
Depth: 47.4km
Time: 2016-04-10 19:34:05 UTC

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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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Significant Earthquakes Strike California, Alaska

Posted by feww on March 13, 2016

M4.1 earthquake strikes 18km ENE of Ojai, California

EQ Details

Magnitude: 4.1Mw
Location:34.526°N, 119.073°W
Depth:19.8 km
Time: 2016-03-12 08:42:40 UTC
Distances:

  • 19km (12mi) N of Santa Paula, California
  • 20km (12mi) NW of Fillmore, California
  • 31km (19mi) NNE of Ventura, California
  • 38km (24mi) NNE of Oxnard, California
  • 59km (37mi) ENE of Santa Barbara, California

M 6.3 quake strikes 65km SSE of Atka, Alaska

  • Foreshocks reported, aftershocks occurring, more will occur!
  • NO destructive tsunami reported.
  • Probability of ME occurring: 0.64 [FIRE-EARTH Models]

EQ Details

Magnitude: 6.3Mw
Location: 51.624°N, 174.005°W
Depth: 22.4 km
Time: 2016-03-12 18:06:46 UTC

As of posting:

5.0 58km S of Atka, Alaska 2016-03-13 03:20:03 UTC 10.0 km
4.6 82km S of Atka, Alaska 2016-03-13 02:28:47 UTC 10.0 km
6.3 65km SSE of Atka, Alaska 2016-03-12 18:06:46 UTC 22.4 km
4.6 18km S of Atka, Alaska 2016-03-12 18:01:05 UTC 36.7 km
4.0 180km S of Atka, Alaska 2016-03-12 14:15:25 UTC 25.1 km
5.4 92km SSE of Atka, Alaska 2016-03-12 13:23:39 UTC 18.0 km
4.6 79km S of Atka, Alaska 2016-03-12 11:55:51 UTC 33.8 km

[Source: USGS/EHP]

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Major Disaster Declared for Alaska

Posted by feww on February 18, 2016

Federal Disaster Declared in the State of Alaska

Alaska Severe Storm (DR-4257)

  • Incident period: December 12, 2015 to December 15, 2015
  • Major Disaster Declaration declared on February 17, 2016

The White House has declared a major disaster exists in the State of Alaska in the area affected by a severe storm during the period of December 12-15, 2015.

The severe storm caused substantial damage in the Pribilof Islands Regional Education Attendance Area.

Federal funding is also being made available on a cost-sharing basis for hazard mitigation measures for the entire State of Alaska.

Additional designations may be made at a later date if requested by the state and warranted by the results of further damage assessments, said the Federal Coordinating Officer for federal recovery operations in the affected area.

Federal Disaster Declarations (2015)

The federal government proclaimed 43 Major Disaster Declaration [DR 4205-4247] for a U.S. state/tribal area/territory in 2015, two Emergency Declarations, EM-3372 and EM-3373 and 34 Fire Management Assistance Declarations [FM-5084 to FM-5117.]

Major Disaster Declarations (2016)

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Powerful Earthquake Strikes Iniskin Bay, Alaska

Posted by feww on January 24, 2016

M7.1 earthquake strikes SW of Anchorage, Alaska

Centered at 59.658°N, 153.452°W the event occurred at a depth of 127.8 km (79.4 mi), reported USGS/EHP.

EQ Details
Magnitude: 7.1Mw
Location: 59.658°N 153.452°W
Depth: 127.8 km
Time: 2016-01-24 10:30:30 UTC
Nearby Cities:

  • 83km (52mi) E of Old Iliamna, Alaska
  • 261km (162mi) SW of Anchorage, Alaska
  • 295km (183mi) SW of Knik-Fairview, Alaska
  • 648km (403mi) SSW of College, Alaska

Tsunami Evaluation: This earthquake did not generate a destructive tsunami.

Aftershocks: At least 8 aftershocks have occurred in and around the Iniskin Peninsula, as of posting.

Tremors were felt in Anchorage, about 260km NE of the epicenter.

Regional Impact: http://earthquake.usgs.gov/earthquakes/eventpage/us10004gqp#impact_dyfi

 

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Heightened Seismicity Continues Across U.S.

Posted by feww on January 8, 2016

Seismic Map of the United States (7 Days – All Magnitudes)

At lease 1,382 earthquakes of all magnitudes (82 percent of the global total) have struck the United States (excl. territories) in the 7 days to 2016-01-08 at 14:45:15 UTC, based on the data provided by the USGS/EHP.

seimic map of us 7 days
Seismic map of the United States Seismic Map of the United States (7 Days to 2016-01-08 14:45:15 UTC – All Magnitudes)

EQ Totals – 7 Days to 2016-01-08 14:45:15 UTC – All Magnitudes

Global Events: 1,686
U.S. Events: 1,382 (Excl. Territories)
Source: USGS/EHP Archive

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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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Quake Strikes Cayman Trench

Posted by feww on November 16, 2015

M5.8 Quake Strikes SSW of George Town, Cayman Islands

Centered at 17.833°N, 81.860°W the quake occurred at a depth of 10.0km (6.2 mi), reported USGS/EHP.

EQ Details
Magnitude: 5.8Mw
Location: 17.833°N 81.860°W depth=10.0 km (6.2 mi)
Time: 2015-11-16 00:39:34 (UTC)
Nearby Cities:

  • 169km (105mi) SSW of George Town, Cayman Islands
  • 176km (109mi) SSW of West Bay, Cayman Islands
  • 422km (262mi) W of Montego Bay, Jamaica
  • 450km (280mi) NNE of Puerto Cabezas, Nicaragua

Other Notable Earthquakes

  • M5.0 about 72km SSW of Shemya Island, Alaska 2015-11-16 03:31:43 UTC depth= 39. km
  • M4.8 about 54km S of Obihiro, Japan 2015-11-15 17:11:42 UTC depth=104.5km
  • M4.3 about 30km NW of Fairview, Oklahoma 2015-11-15 09:45:31 UTC depth=5.0km

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Strong Earthquake Strikes near Atka, Alaska

Posted by feww on November 9, 2015

M6.2 quake occurs ESE of Atka, Alaska

Centered at 51.735°N, 173.066°W the quake occurred at a depth of 10.0 km (6.2mi), reported USGS/EHP.

EQ Details
Magnitude: 6.2Mw
Location: 51.735°N, 173.066°W depth=10.0 km (6.2 mi)
Time: 2015-11-09 16:03:45 (UTC)

Nearby Cities

  • 93km (58mi) ESE of Atka, Alaska
  • 1,548km (962mi) SSE of Anadyr’, Russia
  • 1,759km (1093mi) WSW of Anchorage, Alaska

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Strong Quake Strikes NW Sumatra

Posted by feww on November 8, 2015

UPDATED

M6.1 quake strikes S of Medan, Indonesia

Magnitude: 6.1Mw
Location: 0.743°N 98.875°E (about 250km south of Medan, North Sumatra)
Depth: 75.1 km
Time: 2015-11-08 09:34:57 UTC
[Source: USGS/EHP]

Latest Significant Earthquakes

M 5.3 – 273km SSW of Severo-Kuril’sk, Russia
Location: 48.388°N 154.768°E
Depth: 44.2 km
Time: 2015-11-08 15:40:55 UTC

M 5.7 – 114km SE of Atka, Alaska
Location: 51.500°N 172.981°W
Depth: 33.5 km
Time: 2015-11-08 11:33:16 UTC

M5.4 – 98km SE of Atka, Alaska
Location: 51.624°N 173.116°W
Depth: 47.6 km
Time: 2015-11-08 10:46:21 UTC

M5.2 – 138km NW of Sabang, Indonesia
Location: 6.880°N 94.548°E
Depth:  27.1 km
Time: 2015-11-08 10:42:04 UTC

M 5.3 – 58km ENE of Tarata, Peru
Location: 17.369°S 69.495°W
Depth: 165.0 km
Time: 2015-11-08 08:13:37 UTC

M 5.7 – 3km N of Binabalian Ricor, Philippines
Location: 16.456°N 119.927°E
Depth: 35.3 km
Time: 2015-11-07 19:40:12 UTC

M 5.3 – 1km W of Moriya, Japan
Location: 35.931°N 139.982°E
Depth: 106.1 km
Time: 2015-11-07 13:44:44 UTC

[Source: USGS/EHP]

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Major Disaster Declared in Alaska

Posted by feww on October 31, 2015

Alaska Declared Federal Disaster Area

Alaska Severe Storm (DR-4244)
Incident period: August 27, 2015
Major Disaster Declaration declared on October 30, 2015

The White House has declared a major disaster exists in the State of Alaska in the areas in the areas affected by a severe storm on August 27, 2015.

Additional designations may be made at a later date if requested by the state and warranted by the results of further damage assessments, said the Federal Coordinating Officer for federal recovery operations in the affected areas.

Alaska Federal Disasters

This is the 23rd Federal Disaster Declaration for the state since 2000.

Federal Disasters 2015

The federal government has proclaimed 40 Major Disaster Declaration [DR 4205-4244] for a U.S. state/tribal area/territory so far this year. Additionally, the government has issued two Emergency Declarations, EM-3372 and EM-3373, and 33 Fire Management Assistance Declarations, [FM-5084 to FM-5116] for the year to date.

Major Disaster Declarations Since August 2015

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