Karymsky volcano (Eastern Kamchatka, Russia) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 September-8 September 2020 (Continuing Activity)

Wed, 2 Sep 2020, 06:00
06:00 AM | BY: VN
KVERT reported that explosions at Karymsky were last recorded on 29 July. A thermal anomaly was weak for most of August and undetectable after 21 August. The Aviation Color Code was lowered to Green (the lowest level on a four-color scale) on 3 September.

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 2 September-8 September 2020. Smithsonian Institution and US Geological Survey.

Previous news

Wed, 26 Aug 2020, 06:00
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 18 and 21 August; weather clouds prevented views of the volcano on the other days during 14-28 August. The Aviation Color Code remained at Orange (the second highest level on a four-color scale). ... Read all
Wed, 12 Aug 2020, 06:00
KVERT reported that a thermal anomaly over Karymsky was identified in satellite images on 7 and 10 August; weather clouds prevented views of the volcano on the other days during 7-14 August. 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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