Вулкан Karymsky: Консультативный центр по вулканическому пеплу: POSS VA CONTINUOUSLY OBS IN SATELLITE IMAGERY.

Вт, 5 мар 2019, 18:15
18:15 PM | ПЇЅПЇЅПЇЅПЇЅПЇЅ: VN
Эруптивная активность продолжается. Консультативный центр по вулканическому пеплу (VAAC) в Tokyo предупредил о шлейфе вулканического пепла, который поднялся на высоту 17000 футов (5200 m) и движется со скоростью 15 узлов в N направлении.
Полный отчет выглядит следующим образом:

FVFE01 at 18:00 UTC, 05/03/19 from RJTD
VA ADVISORY
DTG: 20190305/1800Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/91
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS VA CONTINUOUSLY OBS IN SATELLITE IMAGERY.
OBS VA DTG: 05/1720Z
OBS VA CLD: SFC/FL170 N5447 E15905 - N5449 E15859 - N5500 E15905 -
N5457 E15911 MOV N 15KT
FCST VA CLD +6 HR: 05/2320Z SFC/FL180 N5637 E15706 - N5525 E15731 -
N5408 E15845 - N5414 E15755 - N5523 E15652 - N5632 E15638
FCST VA CLD +12 HR: NO VA EXP
FCST VA CLD +18 HR: NO VA EXP
RMK: VA OBSCURED BY MET CLOUD. HOWEVER VA IS STILL EXPECTED IN THE
AREA.
NXT ADVISORY: 20190306/0000Z=

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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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