Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170710/1910Z FL120 EXTD SW OBS VA DTG: 10/2010Z
FVFE01 at 20:49 UTC, 10/07/17 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/46
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170710/1910Z FL120 EXTD SW
OBS VA DTG: 10/2010Z
OBS VA CLD: SFC/FL120 N5405 E15931 - N5346 E15924 - N5332 E15912 -
N5340 E15855 - N5359 E15920 - N5407 E15925 MOV SW 30KT
FCST VA CLD +6 HR: 11/0210Z SFC/FL110 N5230 E15916 - N5026 E15852 -
N5057 E15821 - N5311 E15829 - N5331 E15856
FCST VA CLD +12 HR: 11/0810Z SFC/FL100 N5301 E15908 - N4708 E15952 -
N4813 E15825 - N4931 E15859 - N5337 E15814
FCST VA CLD +18 HR: 11/1410Z SFC/FL080 N4408 E16232 - N4430 E16100 -
N4601 E15937 - N5236 E15818 - N5314 E15911 - N4647 E16059
RMK: T+0 CONFIDENCE HIGH.
NXT ADVISORY: 20170711/0000Z=
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