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Posts Tagged ‘Kamchatka peninsula’

Tsunamis of Volcanism Could Hit Kamchatka, Kurils after Key Earthquake –FIRE-EARTH

Posted by feww on October 11, 2018

TERG 01 – 101102 – 2

FEWW Public Alert

Significant quakes along Kuril–Kamchatka Trench consistent with probability of large earthquake in the region

FIRE-EARTH Forecast: The M6.5, M6.0 earthquakes could be foreshocks to large earthquake(s), measuring magnitude 9.2 (±0.2), that could occur along Kuril–Kamchatka Trench (near Zenkevich Rise) by early next year.

  • The latest earthquakes could also unleash “tsunamis of volcanism” throughout Kamchatka Peninsula and along the Kuril Islands.
    • About 150 volcanoes in the Russia region have erupted since the Holocene, the current geological epoch (~ 11,650 cal years  before present).

Earthquake Details:

M 6.5 – 148km S of Severo-Kuril’sk, Russia
49.348°N, 156.213°E; 17.5 km depth
2018-10-10 23:16:02 (UTC)

Related Seismicity:

M5.2 – 163km S of Severo-Kuril’sk, Russia
2018-10-11 05:47:35 (UTC)
26.1 km

M4.8  –  149km S of Severo-Kuril’sk, Russia
2018-10-11 03:38:43 (UTC)
35.8 km

M5.1  –  148km S of Severo-Kuril’sk, Russia
2018-10-11 02:16:21 (UTC)
48.5 km

M4.9  –  136km S of Severo-Kuril’sk, Russia
2018-10-11 01:30:26 (UTC)
39.5 km

M5.2 – 155km S of Severo-Kuril’sk, Russia
2018-10-11 00:14:44 (UTC)
44.0 km

M4.7  –  141km S of Severo-Kuril’sk, Russia
2018-10-11 00:14:21 (UTC)
35.0 km

M6.5  – 
148km S of Severo-Kuril’sk, Russia
2018-10-10 23:16:02 (UTC)
17.4 km

4.5 – 137km S of Severo-Kuril’sk, Russia
2018-10-09 08:07:06 (UTC)
35.0 km

M6.0 – 138km S of Severo-Kuril’sk, Russia
2018-10-09 07:45:14 (UTC)

Plate-Tectonics Diagnostics

  • FIRE-EARTH Science Plate-Tectonics Diagnostics is available via FIRE-EARTH PULSARS.


Detailed FIRE-EARTH Forecast for the region, as well as nearby seismicity and volcanism in the region, are available via FIRE-EARTH PULSARS.



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M6.6 Quake Rattles Russia’s Far Eastern Kamchatka Peninsula

Posted by feww on March 29, 2017

Grace – PAL

Strong Earthquake Strikes 78km NNE of Ust’-Kamchatsk Staryy, Russia

Earthquake Details:

Magnitude: 6.6 mww [USGS/EHP]
Location: 56.920°N, 162.734°E [78km NNE of Ust’-Kamchatsk Staryy, Russia]
Depth: 22.8 km
Time: 2017-03-29 04:09:24 (UTC)

Kambalny Volcano Eruption

The earthquake occurred near Kambalny volcano which erupted last week after 250 years of dormancy. The volcano is still spewing  smoke and ash to an altitude of about 8,000 meters asl.

Explosive eruption of Kambalny volcano continues. Strong ash plume of the volcano at sunset on 26 March, 2017. Date: 26/3/2017      Author(s): L. Varavskaya, Kronotsky Reserve, Kamcha.   Source: ©Institute of Volcanology and Seismology FEB RAS, KVERT

KVERT/Volcano Observatory Notification to Aviation
(2) Issued: 20170329/0357Z
(3) Volcano: Kambalny (CAVW #300010)
(4) Current Aviation Color Code: ORANGE
(5) Previous Aviation Color Code: orange
(6) Source: KVERT
(7) Notice Number: 2017-40
(8) Volcano Location: N 51 deg 18 min E 156 deg 52 min
(9) Area: Kamchatka, Russia
(10) Summit Elevation: 7071.68 ft (2156 m)
(11) Volcanic Activity Summary: The explosive eruption of the volcano continues. Satellite data showed an ash plume about 56 km to the west-southwest from the volcano.

The explosive eruption of the volcano continues. Ash explosions up to 19,700-26,200 ft (6-8 km) a.s.l. could occur at any time. Ongoing activity could affect international and low-flying aircraft.

VONA/KVERT Information Release, March 29, 2017. KVERT, Institute of Volcanology and Seismology FEB RAS. URL:

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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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Strong Earthquake Strikes East of Kamchatka Peninsula, Russia

Posted by feww on March 21, 2016


M6.4 quake strikes S of Ust’-Kamchatsk Staryy, Russia

EQ Details

Magnitude: 6.4Mw
Location: 54.333°N, 162.799°E
Depth: 31.3 km
Time: 2016-03-20 22:50:20 (UTC)


  • 211km (131mi) S of Ust’-Kamchatsk Staryy, Russia
  • 309km (192mi) ENE of Petropavlovsk-Kamchatskiy, Russia
  • 317km (197mi) ENE of Yelizovo, Russia
  • 329km (204mi) ENE of Vilyuchinsk, Russia
  • 2,733km (1698mi) NNE of Tokyo, Japan

[Source: USGS/EHP]

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Powerful Quake Jump-Starting the Kamchatka Fire Engine

Posted by feww on January 30, 2016

M7.2 earthquakes strikes Kamchatka Peninsula

Centered at 54.03ºN, 158.54°E the event occurred at a depth of 158km, EMSC reported.

At least two significant aftershocks have occurred, as of posting.

EQ Details
Magnitude: 7.2Mw
Location 54.03ºN, 158.54°E (Kamchatka Peninsula, Russia)
Depth: 158km
Date time: 2016-01-30 03:25:09.7UTC

  • 94km N of Yelizovo, Russia [ pop: 40,692]
  • 110km N of Petropavlovsk-Kamchatskiy, Russia [pop: 187,282]
  • 1,751km NE of Sapporo, Japan [pop: 1,883,027]

Source: The European-Mediterranean Seismological Center (EMSC)

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M6.3 Earthquake Strikes Kuril Islands

Posted by feww on July 7, 2015

FIRE-EARTH Forecast:
FIRE-EARTH Models show high probability of intense volcanic activity across Kamchatka Peninsula and along Kuril-Kamchatka Trench.


Strong earthquake strikes ENE of Shikotan, Russia

Centered at 44.00 N ; 147.98 E, the quake occurred at a depth of 30km, about 100km ENE of Shikotan, Russia, according to EMSC.

Magnitude:  6.3Mw
Date/ time: 2015-07-07 at 05:10:26.0 UTC
Location: 44.00°N ; 147.98°E
Depth: 30 km

  • 546 km E of Sapporo-shi, Japan [pop: 1,883,027]
  • 104 km E of Shikotan, Russia [pop: 2,100 ]

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Pavlof Eruption Intensifies

Posted by feww on June 26, 2013

Alaska’s Pavlof Volcano ejects a plume 28,000 feet asl

Pavlof is erupting vigorously, exhibiting strongest seismic activity detected so far this year, characterized by intense, continuous tremor and intermittent explosions suggesting lava fountaining and ash production, Alaska Volcanoes Observatory (AVO) reported.

The wave of intense activity started late on Monday and continued into Tuesday, with trace ash fall reported in the community of King Cove about 30 miles southwest of the volcano.

AVO Daily Update  – Tuesday, June 25, 2013 @ 12:33 PM AKDT (Tuesday, June 25, 2013 @ 20:33 UTC)

55°25’2″ N 161°53’37” W, Summit Elevation 8261 ft (2,518 m)
Current Volcano Alert Level: WATCH
Current Aviation Color Code:   ORANGE
In its daily briefing AVO said:

Vigorous eruptive activity indicated by a distinct increase in seismicity beginning around 6:50 UTC (22:50 AKDT) last evening is continuing. The level of seismicity for the past 11-12 hours has been the strongest seismic activity detected so far during the 2013 eruption of Pavlof Volcano. The seismicity is characterized by intense, continuous tremor and intermittent small explosions that are likely associated with lava fountaining and ash production.

  • A distinct plume extending to the west of the volcano rising as high 28,000 feet above sea level (a.s.l.) according to Satellite data and pilot reports.
  • Satellite imagery also show strong thermal signals at the volcano summit.
  • AVO received a report of trace ash fall on the community of King Cove about 30 miles southwest of the volcano on June 25, 2013.

pavlof 7jun2013
Pavlof volcano, as viewed from Cold Bay on June 7, 2013. Photo credit: Robert Sigurdson, via AVO.

At this level of unrest it is likely that lava fountaining and ash emission are occurring. Lava fountaining is likely producing spatter-fed lava flows that are descending the flanks of the volcano over ice and snow and could be producing substantial steam plumes. These plumes probably contain variable amounts of ash. At the level of unrest observed over the past 11-12 hours, the volcanic plume has not been particularly ash rich; however, this could change if the character of the eruption changes and it remains possible for more robust ash plumes to be generated at any time. AVO is monitoring the eruption closely and will issue further information as it becomes available.

Mount Pavlof, one of the most active volcanoes in the U.S.,  has been erupting since May 13, spewing ash and lava at a low intensity.

Index map showing the location of Pavlof and other Quaternary volcanoes on the Alaskan peninsula. Volcano(es): Alagogshak, Amak, Aniakchak, Basalt of Gertrude Creek, Black Peak, Chiginagak, Cone 3110, Cone 3601, Dana, Denison, Devils Desk, Douglas, Dutton, Fourpeaked, Frosty, Griggs, Iron Trig cone, Kaguyak, Katmai, Kejulik, Kialagvik, Knob 1000, Kukak, Kupreanof, Mageik, Martin, Novarupta, Pavlof, Pavlof Sister, Rainbow River cone, Steller, Stepovak Bay 1, Stepovak Bay 2, Stepovak Bay 3, Stepovak Bay 4, Trident, Ugashik-Peulik, Unnamed (near Ukinrek Maars), Veniaminof, Yantarni. Credit Janet Schaefer/AVO

Veniaminof Volcano Activity [Source: AVO]

Continued volcanic tremors  suggest that the Veniaminof Volcano is still erupting, said AVO. Recent satellite images  show elevated surface temperatures at the intracaldera cone; webcam images from Perryville show a light-colored plume rising above the rim of the intracaldera cone, some 8,200 feet a.s.l.

It is possible for activity at Veniaminof Volcano to increase above its current level at any time and more vigorous ash emissions may result. Sustained periods of volcanic tremor may correspond with continuous ash emission which may not be detected in satellite data, especially if ash plumes remain below 15,000 to 20,000 feet above sea level. Brief bursts of ash emission and small explosions with ash fall limited to areas on the flanks of the volcano are likely to occur while the volcano is at its current level of unrest. A larger explosive episode and associated ash emission is not expected at the current level of unrest; however, this remains possible and would be evident in seismic and satellite data.

Current Volcanic Activity [as of June 26, 2013]


Veniaminof ORANGE  WATCH

Kamchatka Peninsula

Karymsky ORANGE
Kizimen ORANGE
Tolbachik ORANGE
Bezymianny YELLOW
Sheveluch ORANGE

Kurile Islands

Chirinkotan YELLOW

Posted in Global Disaster watch, global disasters, global disasters 2013, Significant Event Imagery, significant events | Tagged: , , , , , , , , , , , , , , | Leave a Comment »

DISASTER Diary – 21 May 2013

Posted by feww on May 21, 2013

Major Disaster Declared in Oklahoma after Mega Tornado Kills Dozens

The Disaster President has declared a major disaster exists in the State of Oklahoma in the area affected by severe storms and tornadoes beginning on May 18, 2013, and continuing.

The areas worst affected are the counties of Cleveland, Lincoln, McClain, Oklahoma, and Pottawatomie.

At least 91 people, many of them children, are feared to have been killed and about 240 others injured after a mega tornado ripped through Oklahoma City suburbs, leveling numerous blocks in the city of Moore (pop: ~ 55,000),  Cleveland County, Oklahoma.

The death toll included 51 confirmed deaths and an additional 40 bodies on their way to the Medical Examiner’s office. (See also the ‘Joplin Syndrome’).

  • The tornado was rated as at least an EF4, with winds of up to 200mph, according to NWS preliminary damage ratings.
  • The tornadic event began at 2.56pm CDT on Monday and lasted for 40 minutes.
  • Moore twister was as much as two miles wide, and carved a 20-mile path of destruction.
  • The tornado left obliterated many hundreds of homes and other buildings in Moore.

Moore tornado path -NWS
This is a preliminary tornado track for the tornado that affected Newcastle, Moore, and Oklahoma City on May 20, 2013. The tornado touchdown at around 2:56 pm in Newcastle, OK and moved through Moore and south OKC before lifting at around 3:36 pm. The path length is estimated to be about 20 miles long with a preliminary damage rating of at least EF4. —NWS

“Our hearts are broken,” Oklahoma Gov. Mary Fallin said. “This is bigger than anything I’ve ever seen. It’s absolutely huge. It’s horrific.”

More Severe Weather Expected from Great Lakes to Central Texas on Tuesday

More severe weather is expected on Tuesday from the Great Lakes across the Mississippi River Valley and into central Texas. Primary threats will be very large hail, damaging winds and tornadoes. Some of the storms could also produce heavy rainfall leading to flash flooding concerns, especially in the Ark-La-Tex region. —NWS


Other Global Disasters/ Significant Events

Average CO2 at Mauna Loa Observatory: Last 5 days of preliminary daily average CO2

  • May 20 – 400.15 ppm
  • May 19 – 400.06 ppm
  • May 18 – 399.77 ppm
  • May 17 – 399.87 ppm
  • May 16 – 399.74 ppm


Groundwater depletion in the U.S. has accelerated

Groundwater depletion in the United States during 1900–2008 was about 1,000 cubic kilometers (km³), according to a new study released by USGS.

  • The rate of groundwater depletion has increased significantly since about 1950, with maximum rates occurring during the most recent period (2000–2008), said the report.
  • The average depletion rate climbed to about 25 km³ [6.6 trillion gallons] per year during 2000–2008, compared to 9.2 km³ per year averaged over the 1900–2008 period.

GW Depletion in the US
Map of the United States (excluding Alaska) showing cumulative groundwater depletion, 1900 through 2008, in 40 assessed aquifer systems or subareas. Colors are hatched in the Dakota aquifer (area 39) where the aquifer overlaps with other aquifers having different values of depletion. [Konikow, L.F., 2013, Groundwater depletion in the United States (1900−2008): U.S. Geological Survey Scientific Investigations Report 2013−5079. only online.)]


Kamchatka, Russia

At least 2 dozen significant quakes, measuring between 5.0 and 6.0Mw, have struck off the east coast of Kamchatka Peninsula, Russia since Monday May 20, 2013. 


1,026 Days Left 

Mass die-offs resulting from human impact and the planetary response to the anthropogenic assault could occur by early 2016.

  • SYMBOLIC COUNTDOWN: 1,026 Days Left to ‘Worst Day’ in the brief Human  History
  • The countdown began on May 15, 2011 …


Global Disasters: Links, Forecasts and Background

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Satellite Images of Recent Volcanic Activities

Posted by feww on February 16, 2010

Recent Activity at Shiveluch Volcano

Shiveluch Volcano on Russia’s Kamchatka Peninsula ejected a plume of ash, volcanic gases and steam, while dark rivulets flowed down the volcano’s snowy slopes. The Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) on NASA’s Terra satellite captured this image on February 13, 2010. Dark flows on the snowy slopes could result from lava and/or lahars—avalanches of water and mud likely prompted by heat from the summit.

Shiveluch is among Kamchatka’s most active volcanoes. In mid-February 2010, the Alaska Volcano Observatory reported that activity at Shiveluch had been elevated above background levels for days, including a lava flow as well as ash plumes reaching an altitude of 5.2 kilometers (17,060 feet). NASA Earth Observatory image created by Jesse Allen. Caption by Michon Scott. Edited by FEWW.

Partial Dome Collapse at Soufriere Hills

Soufrière Hills Volcano on the Caribbean island of Montserrat experienced a partial dome collapse on February 11, 2010 at 12:35 pm local time. Lasting nearly an hour, the event sent a plume 15 km (50,000 feet) skyward, and sent pyroclastic flows—avalanches of hot gas and debris—some 300 to 400 meters (980 to 1,200 feet) out to sea. The pyroclastic flows destroyed many buildings in the village of Harris north of Sourfrière Hills, and the Montserrat Volcano Observatory described the dome collapse as the most severe incident since May 2006.

The Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Aqua satellite captured this true-color image on February 11, 2010, the same afternoon that the dome collapsed. An east-west volcanic plume completely obscures the island of Montserrat, casting a shadow toward the northeast. Two smaller, fainter plumes also extend from the island, one to the north and the other to the south. The northern plume lies in the shadow of the east-west plume and consequently must occur at a lower altitude. NASA image by Jeff Schmaltz, MODIS Rapid Response Team  at NASA GSFC. Caption by Michon Scott. Edited by FEWW.

View E across ash-covered Plymouth, the former capital city and major port of Montserrat, toward Soufriere Hills volcano.
Before the volcano became active in July 1995, about 5,000 people lived in Plymouth, located 4 km west of English’s Crater. During the first two years of the eruption, ash and noxious gas from explosions and pyroclastic flows frequently settled on Plymouth. On August 3, about 3 weeks after this image was taken, the first significant pyroclastic flow swept through the evacuated town. The flow triggered many fires and caused extensive damage to buildings and community facilities by direct impact and burial. Date: 12 July 1997. Credit: R.P. Hoblitt/ USGS

In Uncertain Future for Montserrat Island, Fire-Earth Moderators estimated that the island could become completely uninhabitable by 2013 or earlier

Fire Earth’s EarthModel forecasts the probability of Montserrat island becoming completely uninhabitable as follows:

Probability of Montserrat Becoming Uninhabitable in the Near Future

  • 2009 ≥ 50%
  • 2010 ≥ 56%
  • 2011 ≥ 60%
  • 2012 ≥ 70%
  • 2013 ≥ 80%

Montserrat Island Details:

  • Capital:
    • Plymouth (destroyed in 1997- see photo below)
    • Brades (de facto)
  • Location: Montserrat Island
  • Coordinates: (16.72 N, 62.18 W)
  • Height: 915 meters (3,010 feet)
  • Official languages:     English
  • Ethnic groups:     West African, Mulatto, British, Irish
  • Government:     British Overseas Territory
  • Area:   102 km²  (39 sq mi )

Related Links:

Posted in Montserrat, Soufrière Hills, volcanism, volcano | Tagged: , , , , , , | 3 Comments »

Tao-Rusyr Caldera

Posted by feww on October 25, 2009

Tao-Rusyr Caldera, Onekotan Island, Kuril Islands, Kamchatka Peninsula, Russia

Latitude: 49.35°N 49°21’0″N
Longitude: 154.70°E 154°42’0″E

The huge Tao-Rusyr caldera on southern Onekotan Island is one of the most spectacular volcanoes of the Kuril Islands off the southern tip of Russia’s Kamchatka Peninsula.  The 7.5-km-wide caldera was formed about 7500 years ago during a catastrophic volcanic eruption, one of the largest Holocene eruptions in the Kuril Islands. Today, the basaltic-to-andesitic ancient Tao-Rusyr Caldera is filled by the deep blue waters of Kal’tsevoe Lake, whose surface is 400 m above sea level.

A large symmetrical post-caldera cone, 1325-m-high andesitic Krenitzyn Peak, forms a 4-km wide island that towers high above the caldera rim and fills the NW portion of the caldera lake. A 350-m-wide, 100-m-deep crater truncates the peak and a large lateral crater is located on the upper NE side.

The Advanced Land Imager (ALI) on NASA’s Earth Observing-1 (EO-1) satellite acquired this true-color image of southern Onekotan on June 10, 2009. In this late-spring shot, snow or ice lingers on the land, forming white streaks on a brown-and-green land surface. In the northwest quadrant of the caldera is Krenitzyn Peak, which rises to a height of 1,325 meters (4,347 feet).

Like the other Kuril Islands, Onekotan lies along the Pacific Ring of Fire. The Kuril Island volcanoes are fueled by magma generated by the subduction of the Pacific Plate under the Eurasian Plate, which takes place along a deep trench about 200 kilometers (120 miles) to the islands’ east. The only historical eruption at Krenitzyn Peak occurred in 1952, a week after a magnitude 9.0 earthquake along the subduction fault.

NASA Earth Observatory image created by Robert Simmon, using EO-1 ALI data provided courtesy of the NASA EO-1 team. Caption by Michon Scott and Rebecca Lindsey. [Additional information from GVP. Edited by FEWW]

Tao-Rusyr Caldera
A large symmetrical post-caldera cone, 1325-m-high Krenitzyn Peak, forms a 4-km wide island that towers above the rim of 7.5-km-wide Tao-Rusyr caldera. A 350-m-wide crater caps the peak, and a large shallow lateral crater (left center) is located on the upper NE flank. The small dark mass along the eastern shoreline (right-center) is a lava dome that was emplaced in 1952 during the only historical eruption of the volcano. Kal’tsevoe lake fills a caldera that was formed about 7500 years ago during one of the largest Holocene eruptions in the Kuril Islands. Photo by Oleg Volynets (Institute of Volcanology, Petropavlovsk). Caption: GVP.

Related Links:

FEWW Volcanic Activity Forecast

Posted in Eurasian Plate, Holocene eruption, Kal’tsevoe Lake, Krenitzyn Peak, Pacific Plate, Pacific Ring of Fire | Tagged: , , , , | 1 Comment »

Messages From Earth’s Powerhouse

Posted by feww on September 20, 2009

Are You Receiving, Over?

Images of the Day: Kamchatka Volcanoes

Sheveluch volcano by Yu Demyanchuk
ava flows from the dome of Sheveluch volcano in this night time photo taken on September 15, 2009. Photo by Yu. Demyanchuk. Click on the image to see other photos. Sheveluch is the northernmost active volcano in Kamchatka.

Strombolian activity of Klyuchevskoy volcano on September 18-2009 Photo by Yu Demyanchuk
Strombolian activity of Klyuchevskoy volcano on September 18. Photo by Yu. Demyanchuk. Klyuchevskoy is the highest mountain on Russia’s Kamchatka Peninsula.

Fumarolic activity of Bezymianny volcano on September 03-2009
Fumarolic activity of Bezymianny volcano on September 03, 2009.  Photo by Yu. Demyanchuk. Considered to be extinct before its 1955 eruption,  Bezymianny  means “nameless” in Russian.

Karymsky volcano on August 18-2009 Photo by S Chirkov
Karymsky volcano on August 18, 2009. Photo by S. Chirkov. Karymsky is the most active volcano of Kamchatka’s eastern volcanic zone.

Images may be subject to copyright. See KVERT for details.

Related Links:

Posted in Klyuchevskoy, volcanic activity, volcanic activity forecast, volcanic eruption, volcanic hazard, volcanism | Tagged: , , , , , | 1 Comment »

Bezymianny Volcano on Russia’s Kamchatka peninsula erupts

Posted by msrb on August 20, 2008

PETROPAVLOVSK-KAMCHATSKY. The Bezymianny Volcano on Russia’s Kamchatka peninsula has erupted, Itar-Tass reported.

During the period of unrest, it emitted an ash column with a diameter of about 100 km.

The eruption was forecast prior to the unrest. The Bezymianny Volcano (2,800m high) is one of 28 active volcanoes on the peninsula. Bezymianny erupts explosively once or twice each year. The eruptions can last up to several days.

During its most powerful eruption in 1956, Bezymianny dome exploded collapsing about 280m of its summit (reduced from 3080 to 2800m). It ejected about one cubic kilometer volcanic debris in a very short time. [See VEI below.]

Bezymianny Volcano on Russia’s Kamchatka peninsula. Photo: Itar-Tass. Image may be subject to copyright. See Fair Use Notice!

More …

Volcanic Explosivity Index (VEI)

The Volcanic Explosivity Index (VEI) was devised by Chris Newhall of the U.S. Geological Survey and Steve Self at the University of Hawaiʻi in 1982 to provide a relative measure of the explosiveness of volcanic eruptions.

VEI and ejecta volume correlation. Credit: USGS (Via Wikipedia)

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