Volcano news: Karymsky
Karymsky Volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20190225/0910Z FL090 EXTD SE OBS VA DTG: 25/1000Z to 9000 ft (2700 m)
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 9000 ft (2700 m) altitude or flight level 090 and is moving at 20 kts in SE direction.
The full report is as follows:
FVFE01 at 10:35 UTC, 25/02/19 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/52
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20190225/0910Z FL090 EXTD SE
OBS VA DTG: 25/1000Z
OBS VA CLD: SFC/FL090 N5357 E15957 - N5357 E16006 - N5347 E15957 -
N5352 E15949 MOV SE 20KT
FCST VA CLD +6 HR: 25/1600Z SFC/FL080 N5323 E16259 - N5303 E16251 -
N5310 E16156 - N5326 E16225
FCST VA CLD +12 HR: 25/2200Z SFC/FL070 N5300 E16736 - N5241 E16739 -
N5238 E16712 - N5244 E16539 - N5301 E16639
FCST VA CLD +18 HR: NO VA EXP
RMK: VA OF PREVIOUS VAA[FL100][FL080] IS NOT IDENTIFIABLE DUE TO
CLOUD OR HAS DISSIPATED.
NXT ADVISORY: 20190225/1200Z=
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