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Karymsky Volcano Volcanic Ash Advisory: VA EMISSIONS CONTINUING OBS VA DTG: 22/1120Z to 17000 ft (5200 m)

Fri, 22 Feb 2019, 12:15
12:15 PM | BY: VN
Satellite image of Karymsky volcano on 22 Feb 2019
Satellite image of Karymsky volcano on 22 Feb 2019
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 17000 ft (5200 m) altitude or flight level 170 .
The full report is as follows:

FVFE01 at 12:00 UTC, 22/02/19 from RJTD
VA ADVISORY
DTG: 20190222/1200Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/36
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA EMISSIONS CONTINUING
OBS VA DTG: 22/1120Z
OBS VA CLD: SFC/FL170 N5403 E15927 - N5404 E16021 - N5335 E15957 MOV

E 10KT
FCST VA CLD +6 HR: 22/1720Z SFC/FL180 N5440 E16122 - N5319 E16106 -
N5319 E15953 - N5412 E15934
FCST VA CLD +12 HR: 22/2320Z SFC/FL180 N5435 E16227 - N5248 E16228 -

N5249 E16028 - N5410 E15929 - N5513 E16156
FCST VA CLD +18 HR: 23/0520Z SFC/FL180 N5521 E16345 - N5254 E16459 -

N5234 E16208 - N5358 E15924 - N5516 E16017 - N5610 E16312
RMK: EASTERN PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20190222/1800Z=

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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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