Semisopochnoi volcano news & activity updates:
Semisopochnoi volcano (Alaska): increased seismic activity, steam clouds
Wednesday Aug 07, 2019 12:05 PM | BY: T
AVO reported that during 31 July-6 August seismicity at the volcano remained elevated and was characterized by periods of weak, continuous tremor and discrete low-frequency earthquakes. Satellite images were mostly cloudy, though a possible steam plume was visible during 5-6 August.
The Volcano Alert Level remained at Watch and the Aviation Color Code remained at Orange.
Saturday, Jul 06, 2019
Yesterday, the Alaska Volcano Observatory raised the alert level of the volcano due to an increase in seismicity above background levels. ... [more]
Semisopochnoi volcano (United States, Aleutian Islands) activity update: Explosive activity declines, continuing high seismicity
Thursday, Nov 01, 2018
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. [more]
Semisopochnoi volcano (United States, Aleutian Islands) activity update: Continuing eruptive activity
Tuesday, Oct 30, 2018
The renewed eruption has continued in the last few days. Regular small explosions are occurring, but there have been no sightings of ash plumes. [more]
Friday, Oct 26, 2018
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: ... [more]