Makushin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 June-16 June 2020 (New Activity / Unrest)

mer., 10 juin 2020, 06:00

06:00 AM | AUTEUR : VN

AVO reported that over a period of several hours on 15 June there were two earthquakes in the vicinity of Makushin that were greater than M 4 and one greater than M 3. The events were located about 11 km SE of the summit at a depth of about 8 km, and felt in Unalaska (14 km E). Numerous smaller earthquakes were recorded, though not felt by Unalaska residents.
AVO noted that the earthquakes represented a departure from background levels and were possibly indicative of volcanic unrest; the Aviation Color Code and Volcano Alert Level were respectively raised to Yellow and Advisory. The report noted that aftershocks were continuing.

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 10 June-16 June 2020. Smithsonian Institution and US Geological Survey.

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