Makushin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 24 June-30 June 2020 (New Activity / Unrest)

mer., 24 juin 2020, 06:00

06:00 AM | AUTEUR : VN

AVO reported continuing numerous smaller earthquakes in an area about 10 km E of the Makushin's summit at a depth of about 8 km during 24-30 June; the frequency and magnitude had been declining since 15 June but the rate became variable on 24 June. No surficial activity was visible in satellite or webcam images; only typical minor steaming from summit crater lake. Earthquakes with a M 3 and M 3.8 were recorded at 1653 and 1802 on 28 June, with the larger event strongly felt in Unalaska (14 km E).
The Aviation Color Code and Volcano Alert Level remained at Yellow and Advisory, respectively.

Source: US Geological Survey Alaska Volcano Observatory (AVO)
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From: Global Volcanism Program, 2020. Report on Makushin. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 24 June-30 June 2020. Smithsonian Institution and US Geological Survey.

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