Kliuchevskoi (Kliuchevsky, Klyuchevskaya) Vulkan stößt Aschenwolke auf bis zu 20000 ft (6100 m) Höhe aus

Explosive Tätigkeit hält weiterhin an. Das Volcanic Ash Advisory Center (VAAC) в Tokyo warnte vor einer Wolke aus Vulkanasche, die auf eine Höhe von geschätzt 20000 Fuß (6100 m) bzw. Flight Level 200 aufstieg und sich mit 20 Knoten nach W bewegt.
Hier der originale Bericht: VA AT 20210107/1300Z FL200 EXTD W OBS VA DTG: 07/1300Z

FVFE01 at 13:32 UTC, 07/01/21 from RJTD
VA ADVISORY
DTG: 20210107/1332Z
VAAC: TOKYO
VOLCANO: KLYUCHEVSKOY 300260
PSN: N5603 E16039
AREA: RUSSIA
SUMMIT ELEV: 4754M
ADVISORY NR: 2021/18
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA AT 20210107/1300Z FL200 EXTD W
OBS VA DTG: 07/1300Z
OBS VA CLD: SFC/FL200 N5600 E16038 - N5611 E15929 - N5623 E15924 -
N5628 E15946 - N5614 E16040 MOV W 20KT
FCST VA CLD +6 HR: 07/1900Z SFC/FL200 N5626 E15852 - N5609 E15803 -
N5611 E15605 - N5643 E15527 - N5650 E15602
FCST VA CLD +12 HR: 08/0100Z SFC/FL210 N5618 E15654 - N5605 E15647 -

N5527 E15348 - N5707 E15114 - N5718 E15201 - N5602 E15506
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20210107/1800Z=

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)