Semisopochnoi volcano news & activity updates:
Semisopochnoi volcano (Alaska): alert level raised to yellow
Yesterday, the Alaska Volcano Observatory raised the alert level of the volcano due to an increase in seismicity above background levels.
Sat, 6 Jul 2019, 08:2608:26 AM | DOOR: T
The Aviation Color Code is now YELLOW and the Alert Level of the volcano is ADVISORY. No explosive activity has been detected on infrasound data.
Thu, 1 Nov 2018, 23:55
Semisopochnoi volcano (United States, Aleutian Islands) activity update: Explosive activity declines, continuing high seismicity
AVO reports that there have been no explosions in the last day, and only two the day before. The volcano remains highly restless and explosions could resume. ... Lees alle
Tue, 30 Oct 2018, 11:32
Semisopochnoi volcano (United States, Aleutian Islands) activity update: Continuing eruptive activity
The renewed eruption has continued in the last few days. Regular small explosions are occurring, but there have been no sightings of ash plumes. ... Lees alle
Fri, 26 Oct 2018, 18:45
Fri, 26 Oct 2018, 06:43
A small eruption occurred at the volcano this morning (21:00 pm local time) and was detected in seismic data. The Alaska Volcano Observatory (AVO) reports: ... Lees alle
Fri, 26 Oct 2018, 05:45