Volcano news: Karymsky

Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170807/2010Z FL080 EXTD NW OBS VA DTG: 07/2130Z

Пн, 7 авг 2017, 22:00
22:00 PM |
Satellite image of Karymsky volcano on  7 Aug 2017
Satellite image of Karymsky volcano on 7 Aug 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 21:54 UTC, 07/08/17 from RJTD
VA ADVISORY
DTG: 20170807/2154Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/91
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170807/2010Z FL080 EXTD NW
OBS VA DTG: 07/2130Z
OBS VA CLD: SFC/FL080 N5403 E15927 - N5403 E15917 - N5410 E15916 -
N5410 E15927 MOV NW 5KT
FCST VA CLD +6 HR: 08/0330Z SFC/FL080 N5415 E15857 - N5405 E15854 -
N5407 E15814 - N5417 E15816
FCST VA CLD +12 HR: 08/0930Z SFC/FL070 N5421 E15821 - N5348 E15747 -

N5351 E15717 - N5421 E15734
FCST VA CLD +18 HR: 08/1530Z SFC/FL060 N5432 E15802 - N5339 E15623 -

N5340 E15602 - N5430 E15657
RMK: NIL
NXT ADVISORY: 20170808/0000Z=

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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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