Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20180910/2020Z FL200 EXTD NE OBS VA DTG: 10/2240Z
FVFE01 at 23:05 UTC, 10/09/18 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2018/128
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20180910/2020Z FL200 EXTD NE
OBS VA DTG: 10/2240Z
OBS VA CLD: SFC/FL200 N5557 E16152 - N5552 E16232 - N5538 E16221 -
N5538 E16202 - N5448 E16123 - N5502 E16111 MOV NE 60KT
FCST VA CLD +6 HR: 11/0440Z SFC/FL210 N6040 E17040 - N5503 E16305 -
N5519 E16106 - N5628 E16341 - N6058 E16937
FCST VA CLD +12 HR: 11/1040Z SFC/FL220 N6519 E17733 - N6357 E17707 -
N5505 E16355 - N5515 E16115 - N6540 E17610
FCST VA CLD +18 HR: NO VA EXP
RMK: SOUTHERN PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20180911/0300Z=
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