Volcano news: Karymsky

Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170812/1740Z FL230 EXTD E OBS VA DTG: 12/1800Z

Sat, 12 Aug 2017, 18:45
18:45 PM |
Satellite image of Karymsky volcano on 12 Aug 2017
Satellite image of Karymsky volcano on 12 Aug 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 18:32 UTC, 12/08/17 from RJTD
VA ADVISORY
DTG: 20170812/1832Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/102
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170812/1740Z FL230 EXTD E
OBS VA DTG: 12/1800Z
OBS VA CLD: SFC/FL230 N5408 E15934 - N5407 E15946 - N5401 E15943 -
N5401 E15931 MOV E 15KT
FCST VA CLD +6 HR: 13/0000Z SFC/FL220 N5327 E16221 - N5311 E16210 -
N5344 E15957 - N5405 E16014
FCST VA CLD +12 HR: 13/0600Z SFC/FL220 N5243 E16435 - N5231 E16414 -

N5301 E16155 - N5411 E16038 - N5421 E16057
FCST VA CLD +18 HR: 13/1200Z SFC/FL220 N5320 E16322 - N5203 E16657 -

N5150 E16640 - N5223 E16256 - N5417 E16154 - N5423 E16308
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20170813/0000Z=

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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