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Klyuchevskoy Volcano Volcanic Ash Advisory: ERUPTION AT 20200421/2019Z FL200 EXTD SE REPORTED OBS VA DTG: 21/2020Z to 20000 ft (6100 m)

Tue, 21 Apr 2020, 21:00
21:00 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 20000 ft (6100 m) altitude or flight level 200 and is moving at 25 kts in SE direction.
The full report is as follows:

FVFE01 at 20:53 UTC, 21/04/20 from RJTD
VA ADVISORY
DTG: 20200421/2053Z
VAAC: TOKYO
VOLCANO: KLYUCHEVSKOY 300260
PSN: N5603 E16039
AREA: RUSSIA
SUMMIT ELEV: 4754M
ADVISORY NR: 2020/155
INFO SOURCE: HIMAWARI-8 KBGS
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: ERUPTION AT 20200421/2019Z FL200 EXTD SE REPORTED
OBS VA DTG: 21/2020Z
OBS VA CLD: SFC/FL200 N5607 E16038 - N5606 E16047 - N5542 E16110 -
N5536 E16059 - N5601 E16039 MOV SE 25KT
FCST VA CLD +6 HR: 22/0220Z SFC/FL200 N5603 E16048 - N5335 E16220 -
N5453 E16034 - N5612 E16005
FCST VA CLD +12 HR: 22/0820Z SFC/FL200 N5539 E16133 - N5351 E16145 -

N5226 E16302 - N5453 E15909 - N5639 E15909 - N5634 E16013
FCST VA CLD +18 HR: NO VA EXP
RMK: VA HEIGHT UPDATED TO FL200 BASED ON GROUND REPORT.
NXT ADVISORY: 20200422/0000Z=

Previous news

Tue, 21 Apr 2020, 11:39
The steam ring ("smoke ring") of Klyuchevskoy volcano this morning (image: KVERT webcam)
The eruption of the volcano continues, mainly characterized by effusive activity, i.e. the emission of a lava flow from the summit crater onto the SE flank. ... Read all
Show more

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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