Makushin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 17 June-23 June 2020 (New Activity / Unrest)
AVO reported that numerous smaller earthquakes in an area about 12 km SE of Makushin's summit were recorded after two events greater than M 4 occurred on 15 June. The earthquake activity continued during 16-23 June, though at a declining rate and magnitudes. No surficial activity was visible in satellite or webcam images; only typical minor steaming from summit fumaroles was visible.
mer., 17 juin 2020, 06:0006:00 AM | AUTEUR : VN
The Aviation Color Code and Volcano Alert Level remained at Yellow and Advisory, respectively.
Source: US Geological Survey Alaska Volcano Observatory (AVO)
From: Global Volcanism Program, 2020. Report on Makushin. In: Mayberry, G (ed.), Weekly Volcanic Activity Report 17 June-23 June 2020. Smithsonian Institution and US Geological Survey.
mar., 16 juin 2020, 02:37
The Alaska Volcano Observatory has raised the Alert Level and Aviation Color Code to ADVISORY/YELLOW due to an earthquake swarm that began a few hours ago with a M4.5 shock, soon followed by a M4.1 event. Both have been reported felt in Dutch Harbor/Unalaska. ... Read all
mer., 10 juin 2020, 06:00
Makushin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 10 June-16 June 2020 (New Activity / Unrest)
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. ... Read all