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Klyuchevskoy Volcano Volcanic Ash Advisory: ERUPTION AT 20200422/0405Z FL230 EXTD E-SE REPORTED to 23000 ft (7000 m)

Wed, 22 Apr 2020, 05:15
05:15 AM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 23000 ft (7000 m) altitude or flight level 230 and is moving at 15 kts in SE direction.
The full report is as follows:

FVFE01 at 05:01 UTC, 22/04/20 from RJTD
VA ADVISORY
DTG: 20200422/0500Z
VAAC: TOKYO
VOLCANO: KLYUCHEVSKOY 300260
PSN: N5603 E16039
AREA: RUSSIA
SUMMIT ELEV: 4754M
ADVISORY NR: 2020/157
INFO SOURCE: HIMAWARI-8 KBGS
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: ERUPTION AT 20200422/0405Z FL230 EXTD E-SE REPORTED

OBS VA DTG: 22/0420Z
OBS VA CLD: SFC/FL230 N5607 E16036 - N5610 E16101 - N5530 E16212 -
N5520 E16150 MOV SE 15KT
FCST VA CLD +6 HR: 22/1020Z SFC/FL230 N5546 E16233 - N5404 E16347 -
N5453 E16107 - N5628 E15951
FCST VA CLD +12 HR: 22/1620Z SFC/FL230 N5319 E16443 - N5450 E15959 -

N5729 E15836 - N5615 E16314
FCST VA CLD +18 HR: NO VA EXP
RMK: EASTERN PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20200422/0900Z=

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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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