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Posts Tagged ‘volcano alert’

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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FIRE-EARTH Volcano Alert: Mt. Merapi Erupts

Posted by feww on May 11, 2018

Phreatic eruption reported at Mt Merapi

Mount Merapi (Gunung Merapi, ‘Fire Mountain’ in Indonesian and Javanese), one of Indonesia’s most active volcanoes, erupted Friday forcing nearby villagers to evacuate. The volcano ejected a column of ash and steam to a height of about 5.5km above the crater, forcing Adisutjipto Airport in Yogyakarta province to shut down.

  • Latest FORECASTS and ALERTS are available via FIRE-EARTH PULSARS.

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KILAUEA VOLCANO: Lava Erupting Intermittently from 8 Fissures

Posted by feww on May 6, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT

USGS –  Saturday, May 5, 2018, 11:42 PM HST (Sunday, May 6, 2018, 09:42 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. Fissure 7 stopped erupting in mid-afternoon. A new fissure erupted this evening near fissures 2 and 7, and lava fountains reached as high as about 70 m (230 ft). Early this morning, new ground cracks were reported on Highway 130, but no heat or escaping steam was subsequently observed.

Seismicity and deformation are consistent with continued accumulation of magma within the rift zone.

Residents should remain informed and heed Hawaii County Civil Defense closures, warnings, and messages (http://www.hawaiicounty.gov/active-alerts).

For maps showing the locations of eruption features, please see https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

For information on volcanic air pollution, please see: http://www.ivhhn.org/vog/

HVO geologists will be in the area overnight to track and report to Hawaii County Civil Defense on the activity, and other scientists are closely tracking the volcano’s overall activity using various monitoring data streams.

Kīlauea Volcano Summit

Tiltmeters at the summit of Kīlauea Volcano continue to record the deflationary trend of the past several days. Satellite InSAR data show that between April 23 and May 5, 2018, the summit caldera floor subsided about 10 cm (4 in). Corresponding to this deflationary trend, the summit lava lake level in Overlook crater has dropped about 128 m (518 ft) below the crater rim since April 30. Rockfalls from the crater walls into the retreating lake produced ashy plumes above Halemaumau crater today, resulting in light ashfall in the summit area. Rockfalls and ashy plumes are expected to continue as the lake level drops.

Earthquake activity in the summit increased in the past 2 days, coincident with the magnitude-6.9 earthquake on May 4 beneath the south flank of Kīlauea. In the past two days, about 152 magnitude-2 and magnitude-3 earthquakes occurred at depths less than 5 km (3 miles) beneath the summit area. Twenty two magnitude 3 earthquakes were recorded. These earthquakes are related to the ongoing subsidence of the summit area and beneath the south flank of the volcano.

View of new fissure from Luana Street near fissure 2 and 7, Leilani Estates


A new fissure erupted this evening near fissures 2 and 7, beginning with small lava spattering at about 8:44 p.m. HST. By 9:00 p.m., lava fountains as high as about 70 m (230 ft) were erupting from the fissure. [USGS/HVO]

Kīlauea Volcano lower East Rift Zone eruption


Left: At 07:45 a.m. HST, today, lava from fissure 7 slowly advanced to the northeast on Hookapu Street in Leilani Estates subdivision on Kīlauea Volcano’s lower East Rift Zone. A map showing the location of the fissures is posted on HVO’s website at https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html. Right: At 12:26 p.m. HST today, a crack opened on Pohoiki Road just east of Leilani Street in the Leilani Estates subdivsion.  [USGS/HVO]

Nightmare on Leilani and Makamae Streets 


A panoramic view of fissure 7 from the intersection of Leilani and Makamae Streets in the Leilani Estates subdivision. This photo was taken at 06:01 a.m. HST today.  [USGS/HVO]

FIRE-EARTH themes for the eruption photos are available via FIRE-EARTH PULSARS.

Ongoing Seismicity

M4.6 44km SSE of Volcano, Hawaii   –  8.7 km
2018-05-05 03:30:15 (UTC) 

M4.7 – 20km SE of Leilani Estates, Hawaii   –  10.1 km
2018-05-05 01:20:27 (UTC) 

M5.3 – 16km E of Pahala, Hawaii  –  8.9 km
2018-05-05 00:37:10 (UTC)

M4.8 – 8km WSW of Volcano, Hawaii   –  2.7 km
2018-05-04 22:48:19 (UTC)

M4.6 – 13km S of Volcano, Hawaii   –   7.7 km
2018-05-04 22:42:42 (UTC)

M4.6 – 17km S of Volcano, Hawaii  –  7.9 km
2018-05-04 22:37:18 (UTC)

M6.9 – 16km SW of Leilani Estates, Hawaii   –  5.0 km
2018-05-04 22:32:55 (UTC)

M5.4 – 18km SW of Leilani Estates, Hawaii    –   6.9 km
2018-05-04 21:32:44 (UTC)

M5.0 – 18km S of Fern Acres, Hawaii  –  6.9 km
2018-05-03 20:30:56 (UTC)

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KILAUEA: Eruption of lava in the Leilani Estates continues

Posted by feww on May 5, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT  – USGS

Friday, May 4, 2018, 4:04 PM HST (Saturday, May 5, 2018, 02:04 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

Eruption of lava in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano continues. Several additional eruptive fissures or vents – each several hundred yards long – have opened over the past day. No significant lava flows have yet formed. Spatter and lava are accumulating primarily within a few tens of yards of the vent.

The sixth and most recent fissure is on the eastern edge of the subdivision. Not all fissure vents remain active and no far-traveled lava flows have formed.

For maps showing the locations of these features, please see https://volcanoes.usgs.gov/volcanoes/kilauea/multimedia_maps.html

HVO geologists will be in the area overnight to track additional activity that may occur, and other scientists are closely tracking the volcano’s overall activity using various monitoring data streams.

Seismicity and deformation are consistent with continued accumulation of magma within the rift zone. Additional outbreaks of lava are expected.

Residents should remain informed and heed Hawaii County Civil Defense messages (http://www.hawaiicounty.gov/active-alerts).


ABOVE: A new lava fissure (Fissure 2) commenced around 1:00 am HST on Kīlauea Volcano’s lower East Rift Zone on Makamae and Leilani Streets in the Leilani Estates subdivision. Spatter was being thrown roughly 30 m (about 100 ft) high at the time of this photo. Copious amounts of sulfur dioxide gas, which should be avoided, is emitted from active fissures. The eruption is dynamic and changes could occur with little warning. TOP: Steaming cracks at 5:57 a.m. HST in Leilani Estates subdivision, moments before Fissure 3 opened up on Kaupili Street. [USGS/HVO]


Fissure 3 at Leilani and Kaupili Streets in Leilani Estates subdivision at 8:07 a.m. HST today. Lava on the road was approximately 2 m (about 2 yd) thick. [USGS/HVO]

FIRE-EARTH theme for the eruption photos is available via FIRE-EARTH PULSARS.

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KILAUEA VOLCANO – HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT

Posted by feww on May 4, 2018

HAWAIIAN VOLCANO OBSERVATORY STATUS REPORT
U.S. Geological Survey

Thursday, May 3, 2018, 10:13 PM HST (Friday, May 4, 2018, 08:13 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

The eruption in the Leilani Estates subdivision in the lower East Rift Zone of Kīlauea Volcano that began in late afternoon ended by about 6:30 p.m. HST. Lava spatter and gas bursts erupted from the fissure for about two hours, and lava spread a short distance from the fissure, less than about 10 m (33 ft).

At this time, the fissure is not erupting lava and no other fissures have erupted.

HVO geologists are working near the fissure overnight to track additional activity that may occur, and other scientists are closely tracking the volcano’s overall activity.

Recent Observations

  • Sulfur gas is quite noticeable around the fissure…
  • Lava flows did not advance more than about 10 m (33 ft) from the fissure. The flows are no longer active.
  • No other fissures have erupted from along the rift zone currently.
  • Tiltmeters at Kīlauea’s summit continue to record deflationary tilt and the lava lake level has dropped about 37 m (121 ft) in the past 24 hours.
  • Seismic activity has not changed significantly during the day or since the brief fissure eruption.


TOP: A view of Pu‘u ‘Ō‘ō from the east, shortly after a small collapse. The coating of red ash on the south side of the cone (left side of photo) is evident. ABOVE: At 10:31 a.m. HST, while HVO geologists were working on Pu‘u ‘Ō‘ō, a magnitude-5.0 earthquake shook the ground around the cone. Moments later, a collapse occurred in the crater of Pu‘u ‘Ō‘ō, creating a robust, reddish-brown ash plume. [Source: volcanoes.usgs.gov]


At 10:30 HST (May 3), ground shaking from a preliminary magnitude-5.0 earthquake south of Pu‘u ‘Ō‘ō caused rockfalls and possibly additional collapse into the Pu‘u ‘Ō‘ō crater on Kīlauea Volcano’s East Rift Zone. A short-lived plume of ash produced by this event lofted skyward and dissipated as it drifted southwest from Pu‘u ‘Ō‘ō. Downwind areas may have experienced a dusting of ash from this plume. At this time, the 10:30 earthquake has caused no other changes at Kīlauea Volcano. HVO will continue to closely watch monitoring data for any changes. This image was captured from an HVO overflight carrying HVO scientists to the East Rift Zone for field work today. USGS photo by Kevan Kamibayashi.
 

SER – 050402

Hawaii M 5.0
19.344°N 155.070°W [18km S of Fern Acres, Hawaii]
6.9 km depth
2018-05-03 20:30:56 UTC

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Bogoslof Volcano Erupts

Posted by feww on July 10, 2017

KT-623D

Bogoslof Explodes: Volcano Alert Level Raised to WARNING, Aviation Color Code to RED

AVO/USGS Volcanic Activity Notice
Volcano: Bogoslof (VNUM #311300)
Current Volcano Alert Level: WARNING
Previous Volcano Alert Level: WATCH
Current Aviation Color Code: RED
Previous Aviation Color Code: ORANGE

Issued: Monday, July 10, 2017, 12:51 AM AKDT
Source: Alaska Volcano Observatory
Location: N 53 deg 55 min W 168 deg 2 min
Elevation: 492 ft (150 m)
Area: Aleutians

Volcanic Activity Summary: An eruption began at Bogoslof volcano at 07:47 UTC on July 9 (23:47 AKDT on July 9) lasting about 5 minutes followed 15 minutes later by a second explosion that lasted about 7 minutes. A small ash cloud has been detected in satellite data. Winds are towards the southeast. The Aviation Color Code is upgraded to RED and the Volcano Alert Level to WARNING. Ash trajectory models indicate that a possible trace ash fall could occur on Unalaska, but unlikely to affect Dutch Harbor.  https://www.avo.alaska.edu/

Nearby towns:

  • Unalaska 61 mi (98 km) SE
  • Nikolski 76 mi (123 km) SW
  • Akutan 93 mi (149 km) NE
  • Saint George 194 mi (312 km) NW
  • Anchorage 835 mi (1,343 km) NE

Cleveland Volcano
Color Code ORANGE / Alert Level WATCH

Pavlof Volcano
Color Code YELLOW / Alert Level ADVISORY

Hawaii Volcanoes

Kilauea Volcano
Current Volcano Alert Level: WATCH
Current Aviation Color Code: ORANGE

  • FIRE-EARTH Ref:  LMP7
  • FIRE-EARTH Science Team’s July VolcanoWatch Report is available via FEPS.

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FIRE-EARTH Volcano Alert: TGN3

Posted by feww on February 28, 2017

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Volcano Alert: TGN3

  • Details are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: SDL1

Posted by feww on January 11, 2017

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Volcano Alert: SDL1

  • Details are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: KZL2

Posted by feww on January 10, 2017

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Volcano Alert: KZL2

  • Analysis and forecast are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: TGN2

Posted by feww on December 30, 2016

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Volcano Alert: TGN2

  • Details are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: CLB3

Posted by feww on December 28, 2016

  • CJ Members
  • EAC
  • OC Teams

FIRE-EARTH Volcano Alert: CLB3

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: WHP3

Posted by feww on December 17, 2016

CJ Members

FIRE-EARTH Volcano Alert: WHP3

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: GHB3

Posted by feww on December 7, 2016

CJ Members

FIRE-EARTH Volcano Alert: GHB3

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: NRF2

Posted by feww on December 4, 2016

CJ Members

FIRE-EARTH Volcano Alert: NRF2

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: NRF3

Posted by feww on December 3, 2016

CJ Members

FIRE-EARTH Volcano Alert: NRF3

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

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FIRE-EARTH Volcano Alert: GNB6

Posted by feww on October 30, 2016

CJ Members

FIRE-EARTH Volcano Alert: GNB6

  • Details of the Alert are available from FIRE-EARTH PULSARS.

 

 

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FIRE-EARTH Alert: Mt ASO Erupts

Posted by feww on October 8, 2016

CJ Members

FIRE-EARTH Report: A Look Inside the Engine of Mt ASO

[Prepared by FIRE-EARTH Science Team]

  • Details of the report are available from FIRE-EARTH PULSARS.

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Fire-Earth Volcano Alert: MDR5

Posted by feww on September 23, 2016

CJ Members

FIRE-EARTH Volcano Alert: MDR5

  • Details of the Alert are available from FIRE-EARTH AQUAMARINE BEACONS.

 

 

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Fire-Earth Volcano Alert: RSP4

Posted by feww on September 6, 2016

CJ Members

FIRE-EARTH Volcano Alert: RSP4

  • Details of the Alert are available from FIRE-EARTH AQUAMARINE BEACONS.

 

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Klyuchevskoy Volcano Erupts Explosively

Posted by feww on June 14, 2016

Klyuchevskoy ejects column of ash 6-8 kilometers a.s.l.

The latest eruption, detected Tuesday morning, saw the ash column rising 6-8 kilometers into the air. The plume stretched for 47 kilometers to the west of the volcano, Russia’s Institute of Volcanology and Seismology FEB RAS (KVERT) reported.

  • Aviation Color Code: ORANGE
  • Current State: Ash plume extended 47 km to the west from the volcano.
  • Danger Prognosis for Aviation: Explosive eruption of the volcano continues. Ash explosions up to 19,700-26,240 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.
  • Volcanic cloud height: 16400-19680 ft (5000-6000 m) AMSL Time and method of ash plume/cloud height determination: 20160613/2209Z – Video data
  • Other volcanic cloud information: Distance of ash plume/cloud of the volcano: 29 mi (47 km)
  • Direction of drift of ash plume/cloud of the volcano: W / azimuth 274 deg
  • Time and method of ash plume/cloud determination: 20160613/2129Z – NOAA 18 (4m5)

The 4,750m volcano in Russia’s Kamchatka peninsula has been continuously active for the past five decades, with the number of tremors and ash eruptions notably rising recently.

latest_Klyu 2
Klyuchevskoy Volcano. Location 56°3’20″N, 160°38’31″E; Elevation 4,750m. View from F.Yu. Levinson-Lessing Kamchatkan Volcanological Station (Klyuchi village, 30 km to the north-north-east from the volcano). Click image to update. © Webcam of IVS FEB RAS [See Fair Use Notice.]

Kamchatka and the Northern Kuriles Volcanoes: Erupting or Restless

Kamchatka N Kuriles volcanoes - Erupting or Restless
Source: KVERT

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Turrialba Volcano Explodes Again

Posted by feww on May 13, 2016

Costa Rica’s Turrialba Volcano Erupts

Volcanologists at the University of Costa Rica have reported a large explosion at Turrialba Volcano, which occurred in the early hours of Thursday local time.

The powerful eruption ejected ash to a height of about 3 kilometers above the volcano’s summit, according to the Volcanological and Seismological Observatory of Costa Rica (OVSICORI).

“It was a single explosion but a really strong one. This means that there was high pressure inside the volcano,” said a volcanologist at OVSICORI.

The ashfall forced the closure of Tobías Bolaños Airport, in western San José, local media reported.

The 3,340-meter-high volcano is located about 65km northeast of the capital, San Jose.

In October 2014, authorities in Costa Rica evacuated nearby residents after Turrialba’s largest eruption in 148 years. Large areas of San Jose, La Union, Cartago, Santo Domingo and Heredia provinces, located as far as 50km from the crater, reported volcanic ash and strong sulfur odors.

 


Camera located in the crater of the Turrialba volcano, about 600 meters east of the active crater (looking west). The image is refreshed every 10 seconds. Source: Instituto Meteorológico Nacional.


Turrialba Volcano, file image. Source: Instituto Meteorológico Nacional.

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Significant Earthquakes Strike Reykjanes Ridge, Tibet, New Zealand

Posted by feww on May 11, 2016

M5.0 quake strikes Bight Fracture Zone, Reykjanes Ridge

EQ Details
Magnitude 5.0 [USGS/EHP]
Location: 57.627°N 32.866°W
Time: 2016-05-10 17:21:02UTC
Depth: 23.6km
Distances:

  • 765.0 km (475.3 mi) ESE of Nanortalik, Greenland
  • 935.0 km (581.0 mi) SW of Reykjavik, Iceland

M5.5 quake strike  NW of Gyamotang, China (TAR)

Magnitude: 5.5Mw [USGS/EHP]
Location: 32.038°N 94.987°E
Depth: 10.0 km
Time: 2016-05-11 01:15:47UTC
Distances:

  • 70.0 km (43.5 mi) NW of Gyamotang, China
  • 233.0 km (144.8 mi) WNW of Qamdo, China
  • 429.0 km (266.6 mi) N of Along, India
  • 723.0 km (449.3 mi) NE of Thimphu, Bhutan

‘Strong’ earthquake strikes 10km SE of Christchurch

Magnitude: 4.7 [geonet]
Location: 43.59°S, 172.70°E  (10km southeast of Christchurch)
Depth: 7km
Universal Time: May 11 2016, 8:45:53

NZ Volcano Alerts
Volcano, Alert Level, Aviation Color Code
Ruapehu, 2, YELLOW
White Island, 1, YELLOW

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Volcano Eruption Alert: Popocatépetl Explodes

Posted by feww on April 5, 2016

Pyroclastic surge from Popocatépetl volcano sets forest alight

Violent eruption at Mexico’s Popocatépetl produced  a Pyroclastic surge climbing 2km above the crater  and setting the nearby forest alight, said Mexico’s National Center for Disaster Prevention (CENPRED ).

The explosion also caused ashfall in the towns of Juan C. Bonilla and Coronango, in the state of Puebla.

Popocatépetl Volcano (“smoking mountain” in Aztec) is North America’s 2nd-highest volcano. The massive stratovolcano stands 5,450m high and lies about 65 kilometers (40 miles)  southeast of  Mexico City (19.023°N, 98.622°W ) in the eastern segment of the Trans-Mexican volcanic belt.


Popocatépetl explodes (image #8). Credit: CENPRED

The following is latest report posted at CENPRED official website:

As of posting,  the volcano exhibited “continuous emission of steam and gas” in easterly direction (image 9), said the report.

April 05 at 11:15 (16:15 GMT)

During the last 24 hours, 96 long period events were registered and five explosions yesterday at 16:44 h (image no. 1) and 20:31 h the latter generated a ash column of 2 km height above the crater, which moved towards the northeast. Likewise, the fall of incandescent fragments were observed, mainly on the east and southeast slopes of the volcano at a distance of 3.5 km, because of this some fires were generated in the upper part of the forest (image 2), (image 3), (image 4), (video 1), (video 2), (video 3). This explosion caused ash fall in the towns of Juan C. Bonilla and Coronango, both in the state of Puebla. The remaining three explosions were recorded today at 06:54, 7:14 and 07:49 h (image 5), (image 6), (image 7), (image 8).

Additional materials: (video 4), (video 5), (figure 10), (figure 11), (figure 12).

CENAPRED emphasizes that people SHOULD NOT go near the volcano, especially near the crater, due to the hazard caused by ballistic fragments (image 13).

This type of activity is included within the scenarios Volcanic Traffic Light Yellow Phase 2.

The scenarios forecast for this phase are:

1. Explosive activity of low to intermediate level.

2. Ash fall in nearby towns.

3. Possibility of short range pyroclastic flows and mudflows .

Special emphasis is placed on the following recommendations: Continue the safety radius of 12 km, so staying in that area is not allowed.

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