Volcano news: Karymsky

Karymsky Volcano Volcanic Ash Advisory: VA EMISSIONS CONTINUING OBS VA DTG: 17/2320Z to 12000 ft (3700 m)

Sat, 18 Sep 2021, 00:15
00:15 AM | BY: VN
Satellite image of Karymsky volcano on 18 Sep 2021
Satellite image of Karymsky volcano on 18 Sep 2021
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 12000 ft (3700 m) altitude or flight level 120 and is moving at 15 kts in E direction.
The full report is as follows:

FVFE01 at 00:01 UTC, 18/09/21 from RJTD
VA ADVISORY
DTG: 20210918/0000Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2021/234
INFO SOURCE: HIMAWARI-8 KVERT UHPP
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA EMISSIONS CONTINUING
OBS VA DTG: 17/2320Z
OBS VA CLD: SFC/FL120 N5406 E15923 - N5412 E16000 - N5312 E16055 -
N5309 E16025 - N5355 E15954 MOV E 15KT
FCST VA CLD +6 HR: 18/0520Z SFC/FL140 N5435 E16006 - N5417 E16235 -
N5155 E16314 - N5403 E15923
FCST VA CLD +12 HR: 18/1120Z SFC/FL140 N5335 E16452 - N5016 E16532 -

N5408 E15928 - N5518 E16325
FCST VA CLD +18 HR: NO VA EXP
RMK: VA HEIGHT UPDATED TO FL120 BASED ON SATELLITE DATA.
NXT ADVISORY: 20210918/0600Z=

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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