Karymsky Volcano Volcanic Ash Advisory: VA EMISSIONS CONTINUING OBS VA DTG: 26/1120Z to 8000 ft (2400 m)

Tue, 26 Feb 2019, 12:00
12:00 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 8000 ft (2400 m) altitude or flight level 080 and is moving at 25 kts in E direction.
The full report is as follows:

FVFE01 at 11:56 UTC, 26/02/19 from RJTD
VA ADVISORY
DTG: 20190226/1156Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/58
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA EMISSIONS CONTINUING
OBS VA DTG: 26/1120Z
OBS VA CLD: SFC/FL080 N5359 E15926 - N5334 E16047 - N5339 E16102 -
N5405 E15929 MOV E 25KT
FCST VA CLD +6 HR: 26/1720Z SFC/FL080 N5406 E16601 - N5305 E16416 -
N5318 E16119 - N5401 E15925 - N5347 E16330
FCST VA CLD +12 HR: 26/2320Z SFC/FL080 N5535 E16933 - N5504 E16944 -

N5346 E16841 - N5308 E16608 - N5335 E16059 - N5407 E15925 - N5348
E16201 - N5411 E16713
FCST VA CLD +18 HR: NO VA EXP
RMK: EASTERN PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20190226/1800Z=

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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