Karymsky volcano Volcanic Ash Advisory: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY OBS VA DTG: 11/1120Z

Di, 11. Jul 2017, 12:15
12:15 PM |
Satellite image of Karymsky volcano on 11 Jul 2017
Satellite image of Karymsky volcano on 11 Jul 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 12:00 UTC, 11/07/17 from RJTD
VA ADVISORY
DTG: 20170711/1200Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/51
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: VA CONTINUOUSLY OBS ON SATELLITE IMAGERY
OBS VA DTG: 11/1120Z
OBS VA CLD: SFC/FL140 N5118 E15900 - N5116 E15909 - N5058 E15906 -
N5058 E15855 MOV S 25KT
FCST VA CLD +6 HR: 11/1720Z SFC/FL130 N4815 E16037 - N4746 E16045 -
N4821 E15946 - N5001 E15922
FCST VA CLD +12 HR: NO VA EXP
FCST VA CLD +18 HR: NO VA EXP
RMK: T+0 CONFIDENCE LOW. SOME PART OF VA OBSCURED BY MET CLOUD.
NXT ADVISORY: 20170711/1800Z=

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Mi, 5. Jul 2017, 06:00
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images during 1-3 July. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). ... 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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