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Karymsky volcano Volcanic Ash Advisory: POSS ERUPTION OBS AT 20170628/1200Z FL140 EXTD S OBS VA DTG: 28/1440Z

Mi, 28. Jun 2017, 15:15
15:15 PM |
Satellite image of Karymsky volcano on 28 Jun 2017
Satellite image of Karymsky volcano on 28 Jun 2017
Volcanic Ash Advisory Center Tokyo (VAAC) issued the following report:

FVFE01 at 15:09 UTC, 28/06/17 from RJTD
VA ADVISORY
DTG: 20170628/1509Z
VAAC: TOKYO
VOLCANO: KARYMSKY 300130
PSN: N5403 E15927
AREA: RUSSIA
SUMMIT ELEV: 1513M
ADVISORY NR: 2017/37
INFO SOURCE: HIMAWARI-8
AVIATION COLOUR CODE: NIL
ERUPTION DETAILS: POSS ERUPTION OBS AT 20170628/1200Z FL140 EXTD S
OBS VA DTG: 28/1440Z
OBS VA CLD: SFC/FL140 N5300 E15910 - N5235 E15930 - N5229 E15910 -
N5253 E15859 MOV S 25KT
FCST VA CLD +6 HR: 28/2040Z SFC/FL130 N5224 E15951 - N5134 E15923 -
N4943 E16011 - N4937 E15935 - N5032 E15851 - N5203 E15847
FCST VA CLD +12 HR: 29/0240Z SFC/FL110 N5237 E16116 - N5154 E16128 -

N5045 E16004 - N4915 E16015 - N4707 E16155 - N4827 E15915 - N5112
E15914
FCST VA CLD +18 HR: NO VA EXP
RMK: T+0 CONFIDENCE HIGH.
NXT ADVISORY: 20170628/1800Z=

Vorherige Nachrichten

Mi, 28. Jun 2017, 06:00
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images during 23-24 and 27-28 June. An ash plume drifted 55 km SW on 24 June. Explosions on 26 June generated ash plumes that rose to an altitude of 6 km (19,700 ft) a.s.l. and drifted 165 km SE during 26-27 June. ... 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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