Makushin volcano (Aleutian Islands): Volcanic Alert Level lowered to Green
mer., 9 sept. 2020, 06:2306:23 AM | AUTEUR : MARTIN
The Alaska Volcano Observatory (AVO) reported that the seismicity at the volcano has been steadily declining for months, following an earthquake sequence that began on 15 June.
Makushin volcano yesterday (image: AVO)
This earthquake sequence was focused within an area about 6 miles (10 km) east of the summit at a depth of about 5 miles (8 km). Current observations indicate seismic activity has returned to background levels, and thus the Aviation Color Code and the Volcano Alert Level are being decreased to Green/Normal. Other data streams showed no signs of surface changes during the seismic sequence that started in June.
Source: Alaska Volcano Observatory volcano activity update 9 September 2020
mer., 2 sept. 2020, 06:00
Makushin volcano (Fox Islands, USA) - Smithsonian / USGS Weekly Volcanic Activity Report for 2 September-8 September 2020 (Continuing Activity)
Seismicity at Makushin returned to background levels after steadily declining for almost three months following a sequence of earthquakes about 10 km E of the summit at a depth of 8 km that had started on 15 June. AVO lowered the Aviation Color Code and Volcano Alert Level remained at Green and Normal, respectively, on 8 September. ... Read all
jeu., 30 juil. 2020, 21:21
The Alaskan Volcano Observatory (AVO) report that the small earthquakes which began on June 15 continues. These earthquakes are located southeast of the summit. No activity was observed in cloudy satellite and web camera imagery. Read all