Volcano news: Karymsky

Karymsky Volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20190327/0410Z FL090 EXTD E OBS VA DTG: 27/0430Z to 9000 ft (2700 m)

Wed, 27 Mar 2019, 05:15
05:15 AM | BY: VN
Satellite image of Karymsky volcano on 27 Mar 2019
Satellite image of Karymsky volcano on 27 Mar 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 and is moving at 25 kts in E direction.
The full report is as follows:

FVFE01 at 05:02 UTC, 27/03/19 from RJTD
VA ADVISORY
DTG: 20190327/0501Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/117
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20190327/0410Z FL090 EXTD E
OBS VA DTG: 27/0430Z
OBS VA CLD: SFC/FL090 N5409 E15937 - N5410 E15944 - N5359 E15941 -
N5359 E15934 MOV E 25KT
FCST VA CLD +6 HR: 27/1030Z SFC/FL080 N5431 E16323 - N5420 E16318 -
N5353 E16137 - N5411 E16050 - N5412 E16152 - N5427 E16233
FCST VA CLD +12 HR: 27/1630Z SFC/FL060 N5451 E16600 - N5439 E16548 -

N5432 E16346 - N5400 E16153 - N5357 E16047 - N5416 E16105 - N5415
E16158 - N5450 E16359
FCST VA CLD +18 HR: NO VA EXP
RMK: VA OF PREVIOUS VAA HAS DISSIPATED IN SATELLITE IMAGERY. NEW VA

OBS IN SATELLITE IMAGERY.
NXT ADVISORY: 20190327/0900Z=

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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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