Karymsky Volcano Volcanic Ash Advisory: VA EMISSIONS CONTINUING OBS VA DTG: 25/2320Z to 10000 ft (3000 m)

Tue, 26 Feb 2019, 00:15
00:15 AM | BY: VN
Satellite image of Karymsky volcano on 26 Feb 2019
Satellite image of Karymsky volcano on 26 Feb 2019
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 25 kts in E direction.
The full report is as follows:

FVFE01 at 00:00 UTC, 26/02/19 from RJTD
VA ADVISORY
DTG: 20190226/0000Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/56
INFO SOURCE: HIMAWARI-8 KVERT
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA EMISSIONS CONTINUING
OBS VA DTG: 25/2320Z
OBS VA CLD: SFC/FL100 N5410 E15925 - N5356 E16056 - N5426 E16158 -
N5323 E16203 - N5325 E16044 - N5357 E15921 MOV E 25KT
FCST VA CLD +6 HR: 26/0520Z SFC/FL100 N5431 E16651 - N5328 E16656 -
N5317 E16345 - N5336 E16034 - N5404 E15918 - N5350 E16257
FCST VA CLD +12 HR: 26/1120Z SFC/FL100 N5539 E17319 - N5421 E17219 -

N5308 E16329 - N5329 E16038 - N5405 E15922 - N5352 E16335 - N5500
E17054
FCST VA CLD +18 HR: NO VA EXP
RMK: NIL
NXT ADVISORY: 20190226/0600Z=

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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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