Klyuchevskoy volcano (Kamchatka): continuing lava flow

Di, 19. Jan 2021, 09:33
09:33 AM | VON: MARTIN
The lava flow on the S-SW flank with some amount of gas-steam and ash plume from Klyuchevskoy volcano (image: @tonyveco/twitter)
The lava flow on the S-SW flank with some amount of gas-steam and ash plume from Klyuchevskoy volcano (image: @tonyveco/twitter)
Daily average volcanic radiative power during the past month at Klyuchevskoy volcano (image: MIROVA)
Daily average volcanic radiative power during the past month at Klyuchevskoy volcano (image: MIROVA)
The effusive-explosive eruption of the volcano continues and has remained essentially unchanged at moderate levels.
The lava flow on the south-southwest flank remains active and continue to emerge from the summit vent.
Ongoing strombolian activity continues accompanied by emissions of steam and ash at the summit vent at lesser intensity than the average levels of the volcano. Gas-steam and ash plumes extended about 65 km to the northeast of the volcano.
According to MIROVA Detection System a daily average volcanic radiative power during the past month has reached values between 100 MW-1 GW. The Volcanic Radiative Power (VRP) is a measurement of the heat radiated by the volcanic activity at the time of a satellite acquisition.
Source: Kamchatka Volcanic Eruption Response Team volcano activity update 19 January 2021

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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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