Volcano news: Karymsky
Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20180513/2200Z FL100 EXTD SW OBS VA DTG: 13/2250Z
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:
FVFE01 at 23:17 UTC, 13/05/18 from RJTD
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
SUMMIT ELEV: 1513M
ADVISORY NR: 2018/38
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20180513/2200Z FL100 EXTD SW
OBS VA DTG: 13/2250Z
OBS VA CLD: SFC/FL100 N5352 E15910 - N5404 E15926 - N5403 E15928 -
N5349 E15911 MOV SW 15KT
FCST VA CLD +6 HR: 14/0450Z SFC/FL100 N5402 E15915 - N5255 E15910 -
N5239 E15838 - N5252 E15746
FCST VA CLD +12 HR: 14/1050Z SFC/FL090 N5426 E15857 - N5154 E15810 -
N5142 E15649 - N5242 E15558 - N5245 E15630 - N5216 E15730
FCST VA CLD +18 HR: NO VA EXP
RMK: SOUTHERN PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20180514/0300Z=
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