Volcano news: Karymsky

Karymsky Volcano Volcanic Ash Advisory: VA AT 20210901/1750Z FL100 EXTD SE OBS VA DTG: 01/1750Z to 10000 ft (3000 m)

Wed, 1 Sep 2021, 18:30
18:30 PM | BY: VN
Satellite image of Karymsky volcano on  1 Sep 2021
Satellite image of Karymsky volcano on 1 Sep 2021
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 10000 ft (3000 m) altitude or flight level 100 and is moving at 5 kts in SE direction.
The full report is as follows:

FVFE01 at 18:17 UTC, 01/09/21 from RJTD
VA ADVISORY
DTG: 20210901/1817Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2021/181
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA AT 20210901/1750Z FL100 EXTD SE
OBS VA DTG: 01/1750Z
OBS VA CLD: SFC/FL100 N5404 E15922 - N5404 E15930 - N5348 E15938 -
N5344 E15930 MOV SE 5KT
FCST VA CLD +6 HR: 01/2350Z SFC/FL130 N5407 E15949 - N5245 E16010 -
N5240 E15921 - N5405 E15910
FCST VA CLD +12 HR: 02/0550Z SFC/FL130 N5414 E16005 - N5158 E16023 -

N5122 E15910 - N5408 E15902
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20210902/0000Z=

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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