Klyuchevskoy volcano (Kamchatka): activity increases, lava flow

Mo, 12. Jan 2015, 14:35
14:35 PM | VON: T
Glow from the lava flow on Klyuchevskoy volcano yesterday
Glow from the lava flow on Klyuchevskoy volcano yesterday
MODIS thermal image of Klyuchevskoy on 9 Jan 2015
MODIS thermal image of Klyuchevskoy on 9 Jan 2015
Eruptive activity, strombolian explosions from the summit vent, has picked up during the past 1-2 days. A lava flow is now active on the southeastern flank and ash plumes have been reaching 28,000 ft (8.5 km) altitude. KVERT raised the volcano's alert level to orange.
Incandescent material from the explosive summit activity is ejected to several hundred meters above the crater. Relatively intense ash emissions have been causing ash fall in up to 30 km distance to the west of the volcano.

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Sa, 3. Jan 2015, 09:23
Glow from Klyuchevsky this morning (KVERT webcam)
The volcano entered a new phase of activity which is taking place in the summit crater. ... Read all
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NASA photo of the eruption of Klyuchevsky volcano on 30 September, 1994, the volcano's largest explosion in 40 years. The large
NASA photo of the eruption of Klyuchevsky volcano on 30 September, 1994, the volcano's largest explosion in 40 years. The large

Background:

Kliuchevskoi is Kamchatka's highest and most active volcano.  Since its origin about 6000 years ago, the beautifully symmetrical, 4835-m-high basaltic stratovolcano has produced frequent moderate-volume explosive and effusive eruptions without major periods of inactivity.  Kliuchevskoi rises above a saddle NE of sharp-peaked Kamen volcano and lies SE of the broad Ushkovsky massif.  More than 100 flank eruptions have occurred at Kliuchevskoi during the past roughly 3000 years, with most lateral craters and cones occurring along radial fissures between the unconfined NE-to-SE flanks of the conical volcano between 500 m and 3600 m elevation.  The morphology of its 700-m-wide summit crater has been frequently modified by historical eruptions, which have been recorded since the late-17th century.  Historical eruptions have originated primarily from the summit crater, but have also included numerous major explosive and effusive eruptions from flank craters.


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Source: Klyuchevsky information by the GVP (Smithsonian Institution)



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