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Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170605/0550Z FL130 EXTD E OBS VA DTG: 05/0620Z

Пн, 5 июн 2017, 07:00
07:00 AM |
Satellite image of Karymsky volcano on  5 Jun 2017
Satellite image of Karymsky volcano on 5 Jun 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 06:52 UTC, 05/06/17 from RJTD
VA ADVISORY
DTG: 20170605/0652Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/7
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170605/0550Z FL130 EXTD E
OBS VA DTG: 05/0620Z
OBS VA CLD: SFC/FL130 N5405 E15926 - N5409 E15932 - N5407 E15944 -
N5358 E15943 - N5401 E15927 MOV E 10KT
FCST VA CLD +6 HR: 05/1220Z SFC/FL130 N5302 E16001 - N5321 E16101 -
N5221 E16018 - N5215 E15912 - N5340 E15928
FCST VA CLD +12 HR: 05/1820Z SFC/FL110 N5157 E16212 - N5048 E16215 -

N5003 E16106 - N5002 E15931 - N5255 E15939 - N5116 E16014 - N5047
E16054
FCST VA CLD +18 HR: 06/0020Z SFC/FL090 N4812 E16300 - N4919 E16427 -

N4825 E16431 - N4719 E16312 - N4726 E16050 - N4900 E16000 - N5206
E16037 - N4903 E16114
RMK: T+0 CONFIDENCE LOW. SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20170605/1200Z=

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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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