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Karymsky volcano (Eastern Kamchatka, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 28 October-3 November 2020 (New Activity / Unrest)

Wed, 28 Oct 2020, 06:00 | BY: VN
KVERT reported that during 23 and 25-26 October explosions at Karymsky produced ash plumes that rose to 5 km (16,400 ft) a.s.l. and drifted 75 km SE, NE, and NW. A thermal anomaly was identified in satellite images during 23-24, 26, and 28 October.
The Aviation Color Code remained at Orange (the second highest level on a four-color scale).

Source: Kamchatkan Volcanic Eruption Response Team (KVERT)
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From: Global Volcanism Program, 2020. Report on Karymsky. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 28 October-3 November 2020. Smithsonian Institution and US Geological Survey.

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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.
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