Klyuchevskoy volcano (Kamchatka): eruption continues with lava flow

Mi, 23. Dez 2020, 09:31
09:31 AM | VON: MARTIN
The lava flow on the SW flanks of Klyuchevskoy volcano remains active (image: @tonyveco/twitter)
The lava flow on the SW flanks of Klyuchevskoy volcano remains active (image: @tonyveco/twitter)
Gas plume accompanied with small amount of ash erupted from Klyuchevskoy volcano (image: KVERT)
Gas plume accompanied with small amount of ash erupted from Klyuchevskoy volcano (image: KVERT)
The effusive-explosive eruption of the volcano has remained essentially unchanged and continues at moderate levels.
The lava effusion, that started on 8 December, generates the lava flow which continues to be active on the southwestern slopes of the volcano. The length of the lava flow is unknown and was not reported. The lava flow on the southeast flank along the Apakhonchich chute has stopped.
Steam emissions and small amount of ash continue at the summit vent that rose to estimated 20,000 ft-23,000 ft (6,100 m-7,000 m) altitude and extended about 67 km to the north-east of the volcano.
Source: Kamchatka Volcanic Eruption Response Team volcano activity update 23 December 2020

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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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