Volcano news: Karymsky
Karymsky Volcano Volcanic Ash Advisory: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY OBS VA DTG: 04/1120Z to 13000 ft (4000 m)

The full report is as follows:
FVFE01 at 12:00 UTC, 04/01/21 from RJTD
VA ADVISORY
DTG: 20210104/1200Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2021/9
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA CONTINUOUSLY OBS IN SATELLITE IMAGERY
OBS VA DTG: 04/1120Z
OBS VA CLD: SFC/FL130 N5416 E15949 - N5425 E15956 - N5420 E16007 -
N5411 E15957 MOV NE 10KT
FCST VA CLD +6 HR: 04/1720Z SFC/FL130 N5410 E16137 - N5405 E16122 -
N5412 E16058 - N5352 E16037 - N5407 E16029 - N5426 E16100
FCST VA CLD +12 HR: 04/2320Z SFC/FL130 N5408 E16240 - N5317 E16325 -
N5404 E16116 - N5320 E16112 - N5344 E16048 - N5412 E16048 - N5429
E16138
FCST VA CLD +18 HR: NO VA EXP
RMK: NIL
NXT ADVISORY: 20210104/1800Z=
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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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