Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: VA AT 20170703/0540Z FL130 EXTD W MOV 10KT REPORTED
FVFE01 at 06:16 UTC, 03/07/17 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/40
INFO SOURCE: HIMAWARI-8 UHPP
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA AT 20170703/0540Z FL130 EXTD W MOV 10KT REPORTED
OBS VA DTG: 03/0540Z
OBS VA CLD: SFC/FL130 N5405 E15927 - N5404 E15930 - N5400 E15931 -
N5400 E15929 - N5403 E15928 - N5403 E15926 MOV S 10KT
FCST VA CLD +6 HR: 03/1140Z SFC/FL130 N5445 E16023 - N5411 E16024 -
N5344 E15935 - N5402 E15858 - N5416 E15955 - N5441 E15951
FCST VA CLD +12 HR: 03/1740Z SFC/FL140 N5454 E16135 - N5409 E16112 -
N5337 E15936 - N5346 E15836 - N5415 E15834 - N5458 E15945 - N5409
FCST VA CLD +18 HR: 03/2340Z SFC/FL140 N5532 E16217 - N5440 E16211 -
N5322 E15947 - N5320 E15844 - N5410 E15843 - N5537 E16008 - N5405
RMK: T+0 CONFIDENCE HIGH.
NXT ADVISORY: 20170703/1200Z=
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