Volcano news: Karymsky
Karymsky Volcano Volcanic Ash Advisory: VA FM 20201021/0210Z ERUPTION. to 17000 ft (5200 m)
The full report is as follows:
FVAK21 at 10:02 UTC, 21/10/20 from PAWU
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: KAMCHATKA PENINSULA
SUMMIT ELEV: 5039 FT [1536 M]
ADVISORY NR: 2020/013
INFO SOURCE: HIMAWARI
AVIATION COLOR CODE: ORANGE
ERUPTION DETAILS: VA FM 20201021/0210Z ERUPTION.
OBS VA DTG: 21/1000Z
OBS VA CLD: SFC/FL170 N5203 E16329 - N4649 E17033 - N4560 E16932
- N5114 E16139 - N5203 E16329 MOV SE 50KT.
FCST VA CLD +6HR: 21/1600Z SFC/FL170 N5115 E16133 - N5029 E16537
- N4658 E17227 - N4711 E16604 - N5020 E16147 - N5115 E16133.
FCST VA CLD +12HR: 21/2200Z SFC/FL170 N5005 E16528 - N4711
E17317 - N4611 E17103 - N4705 E16700 - N5005 E16528 - N5005
FCST VA CLD +18HR: 22/0400Z NO VA EXP.
RMK: VAAC TOKYO HAS PARTIALLY TRANSFERRED RESPONSIBILITY OF THIS
EVENT TO VAAC ANCHORAGE. PLEASE SEE FVFE01 RJTD ISSUED BY TOKYO VAAC
WHICH DESCRIBES CONDITIONS NEAR THE ANCHORAGE VAAC AREA OF
RESPONSIBILITY. VA SIGNAL PRSTS IN SATELLITE IMAGERY. LEADING SE EDGE
OF VA IS FADING BUT MORE VA IS UPSTREAM MOVING OVER SAME AREAS.
NXT ADVISORY: WILL BE ISSUED BY 20201021/1600Z
JAM OCT 2020 AAWU
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.
Source: GVP, Smithsonian Institution