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Karymsky volcano (Kamchatka) activity update: occasional ash eruptions, thermal anomaly at summit crater

Thu, 29 Mar 2012, 10:05 | BY: T
KVERT reported that during 16-23 March seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 3 km (9,800 ft) a.s.l. during 17 and 20-21 March. Satellite imagery showed a thermal anomaly on the volcano on 15 and 17 March; cloud cover prevented observations on the other days.
(Smithsonian / USGS Weekly Volcanic Activity Report)

Previous news

Wed, 28 Mar 2012, 06:00

Karymsky volcano (Eastern Kamchatka, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 March-3 April 2012 (Continuing Activity)

KVERT reported that during 23-30 March seismic activity from Karymsky continued to be detected, and indicated that possible ash plumes rose to an altitude of 2.5 km (8,200 ft) a.s.l. during 22-26 March. Satellite imagery showed a thermal anomaly on the volcano almost daily. ... Read all
Thu, 22 Mar 2012, 07:47

Karymsky volcano (Kamchatka) activity update: occasional small ash eruptions, thermal anomaly at summit

Possible ash plumes rose to an altitude of 3.1 km (10,100 ft) a.s.l. on 14 March. Satellite imagery showed a thermal anomaly on the volcano during 10-13 March. ... 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


Karymski Satelite Image by (c) Google & NASA
Karymski Satelite Image by (c) Google & NASA
Karymsky volcano
Stratovolcano 1536 m / 5,039 ft
Kamchatka, 54.05°N / 159.43°E
Current status: normal or dormant (1 out of 5) Karymsky volcano eruptions:
1771, 1830, 1852, 1854, 1908, 1911, 1912, 1915, 1921, 1923, 1925, 1929, 1932, 1933, 1934, 1938, 1940, 1943, 1945, 1946, 1947, 1952, 1953, 1955, 1956, 1960, 1965, 1967, 1970, 1982, 1983, 1985, 1990, 1993, 1996 - ongoing
Typical eruption style
Doninantly explosive, construction of lava domes, near constant activity.
Karymsky Volcano Tours
Kamchatka (Russia)
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