Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS VA EMISSIONS CONTINUING.
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 18:00 UTC, 12/07/17 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/57
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS VA EMISSIONS CONTINUING.
OBS VA DTG: 12/1720Z
OBS VA CLD: SFC/FL140 N5403 E15926 - N5354 E15938 - N5346 E15924 -
N5351 E15915 MOV SE 15KT
FCST VA CLD +6 HR: 12/2320Z SFC/FL130 N5401 E16057 - N5324 E16034 -
N5322 E16016 - N5345 E15959 - N5404 E16020
FCST VA CLD +12 HR: 13/0520Z SFC/FL120 N5429 E16243 - N5348 E16143 -
N5342 E16113 - N5408 E16049 - N5435 E16114
FCST VA CLD +18 HR: 13/1120Z SFC/FL110 N5506 E16433 - N5415 E16256 -
N5416 E16143 - N5453 E16123 - N5535 E16317
RMK: T+0 CONFIDENCE LOW. VA OBSCURED BY MET CLOUD. HOWEVER VA IS
STILL EXPECTED IN THE AREA.
NXT ADVISORY: 20170713/0000Z=
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