Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170719/1230Z FL140 EXTD W OBS VA DTG: 19/1250Z
FVFE01 at 13:23 UTC, 19/07/17 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/63
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170719/1230Z FL140 EXTD W
OBS VA DTG: 19/1250Z
OBS VA CLD: SFC/FL140 N5402 E15926 - N5359 E15916 - N5408 E15914 -
N5406 E15926 MOV W 10KT
FCST VA CLD +6 HR: 19/1850Z SFC/FL130 N5417 E16010 - N5329 E16002 -
N5256 E15834 - N5326 E15832
FCST VA CLD +12 HR: 20/0050Z SFC/FL110 N5432 E16016 - N5315 E16113 -
N5249 E16048 - N5254 E15938 - N5204 E15937 - N5302 E15845 - N5337
FCST VA CLD +18 HR: 20/0650Z SFC/FL090 N5231 E16310 - N5240 E16051 -
N5144 E16121 - N5236 E16003 - N5331 E16008 - N5442 E16019 - N5353
RMK: T+0 CONFIDENCE HIGH.
NXT ADVISORY: 20170719/1800Z=
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