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Karymsky Volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20190216/1940Z FL140 EXTD E OBS VA DTG: 16/2010Z to 14000 ft (4300 m)

Sat, 16 Feb 2019, 20:45
20:45 PM | BY: VN
Explosive activity continues. Volcanic Ash Advisory Center (VAAC) Tokyo warned about a volcanic ash plume that rose up to estimated 14000 ft (4300 m) altitude or flight level 140 and is moving at 10 kts in E direction.
The full report is as follows:

FVFE01 at 20:44 UTC, 16/02/19 from RJTD
VA ADVISORY
DTG: 20190216/2044Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2019/9
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20190216/1940Z FL140 EXTD E
OBS VA DTG: 16/2010Z
OBS VA CLD: SFC/FL140 N5407 E15928 - N5404 E15938 - N5358 E15934 -
N5403 E15923 MOV E 10KT
FCST VA CLD +6 HR: 17/0210Z SFC/FL140 N5409 E16208 - N5354 E16213 -
N5338 E16110 - N5355 E16120 - N5354 E15922 - N5407 E16021
FCST VA CLD +12 HR: 17/0810Z SFC/FL130 N5438 E16448 - N5354 E16414 -

N5332 E16258 - N5411 E16410 - N5414 E16244 - N5345 E16015 - N5510
E16427
FCST VA CLD +18 HR: NO VA EXP
RMK: SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20190217/0000Z=

Previous news

Wed, 13 Feb 2019, 06:00
KVERT reported that at 1427 on 16 February a satellite image captured an ash plume from Karymsky drifting 55 km SE at altitudes of 2.5-3 km (8,200-10,000 ft) a.s.l. The Aviation Color Code was raised to Orange (the second highest level on a four-color scale). According to the Tokyo VAAC a possible ash plume on 17 February rose to 3.7 km (12,000 ft) a.s.l. and drifted SE. ... Read all
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Background:

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.


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Source: GVP, Smithsonian Institution


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