Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20180208/0300Z FL160 EXTD SW OBS VA DTG: 08/0440Z
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 05:07 UTC, 08/02/18 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2018/18
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20180208/0300Z FL160 EXTD SW
OBS VA DTG: 08/0440Z
OBS VA CLD: SFC/FL160 N5356 E15907 - N5355 E15919 - N5341 E15918 -
N5343 E15903 MOV SW 10KT
FCST VA CLD +6 HR: 08/1040Z SFC/FL160 N5315 E16017 - N5254 E16011 -
N5244 E15938 - N5300 E15849 - N5316 E15851 - N5325 E15951
FCST VA CLD +12 HR: 08/1640Z SFC/FL170 N5241 E16203 - N5211 E16201 -
N5140 E16116 - N5208 E16032 - N5230 E15919 - N5310 E16107
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20180208/0900Z=
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