Klyuchevskoy Volcano Volcanic Ash Advisory: VA AT 20200416/1810Z FL230 EXTD NE OBS VA DTG: 16/1810Z to 23000 ft (7000 m)

Thu, 16 Apr 2020, 18:45
18:45 PM | BY: VN
Satellite image of Klyuchevskoy volcano on 16 Apr 2020
Satellite image of Klyuchevskoy volcano on 16 Apr 2020
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 20 kts in NE direction.
The full report is as follows:

FVFE01 at 18:42 UTC, 16/04/20 from RJTD
VA ADVISORY
DTG: 20200416/1842Z
VAAC: TOKYO
VOLCANO: KLYUCHEVSKOY 300260
PSN: N5603 E16039
AREA: RUSSIA
SUMMIT ELEV: 4754M
ADVISORY NR: 2020/132
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA AT 20200416/1810Z FL230 EXTD NE
OBS VA DTG: 16/1810Z
OBS VA CLD: SFC/FL230 N5605 E16038 - N5639 E16140 - N5630 E16141 -
N5603 E16040 MOV NE 20KT
FCST VA CLD +6 HR: 17/0010Z SFC/FL230 N5759 E16429 - N5740 E16432 -
N5637 E16219 - N5610 E16102 - N5657 E16205
FCST VA CLD +12 HR: 17/0610Z SFC/FL230 N5913 E16724 - N5821 E16647 -

N5618 E16316 - N5552 E16132 - N5809 E16543
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20200417/0000Z=

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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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