Volcano news: Karymsky

Karymsky Volcano Volcanic Ash Advisory: VA AT 20210905/2342Z FL200 EXTD NE MOV 15KT REPORTED to 20000 ft (6100 m)

Mon, 6 Sep 2021, 00:30
00:30 AM | BY: VN
Satellite image of Karymsky volcano on  6 Sep 2021
Satellite image of Karymsky volcano on 6 Sep 2021
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 .
The full report is as follows:

FVFE01 at 00:25 UTC, 06/09/21 from RJTD
VA ADVISORY
DTG: 20210906/0025Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2021/200
INFO SOURCE: HIMAWARI-8 UHPP
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA AT 20210905/2342Z FL200 EXTD NE MOV 15KT
REPORTED
OBS VA DTG: 05/2350Z
OBS VA CLD: SFC/FL200 N5405 E15926 - N5415 E16008 - N5400 E16010 -
N5402 E15927 MOV E 20KT
FCST VA CLD +6 HR: 06/0550Z SFC/FL220 N5454 E16325 - N5419 E16330 -
N5447 E16209 - N5515 E16209
FCST VA CLD +12 HR: 06/1150Z SFC/FL230 N5501 E16626 - N5438 E16630 -

N5548 E16303 - N5608 E16309
FCST VA CLD +18 HR: NO VA EXP
RMK: VA HEIGHT UPDATED TO FL200 BASED ON VA REPORT.
NXT ADVISORY: 20210906/0600Z=

Previous news

Background:

Karymsky, the most active volcano of  Kamchatka's eastern volcanic zone, is a symmetrical stratovolcano constructed within a 5-km-wide caldera that formed during the early Holocene.  The caldera cuts the south side of the Pleistocene Dvor volcano and is located outside the north margin of the large mid-Pleistocene Polovinka caldera, which contains the smaller Akademia Nauk and Odnoboky calderas. 
Most seismicity preceding Karymsky eruptions originated beneath Akademia Nauk caldera, which is located immediately south of Karymsky volcano.  The caldera enclosing Karymsky volcano formed about 7600-7700 radiocarbon years ago; construction of the Karymsky stratovolcano began about 2000 years later.  The latest eruptive period began about 500 years ago, following a 2300-year quiescence.  Much of the cone is mantled by lava flows less than 200 years old.  Historical eruptions have been vulcanian or vulcanian-strombolian with moderate explosive activity and occasional lava flows from the summit crater.


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Source: GVP, Smithsonian Institution


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