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Semisopochnoi volcano
Stratovolcano 1221 m / 4,006 ft
United States, Aleutian Islands, 51.93°N / 179.58°E
Current status: minor activity or eruption warning (3 out of 5)
Semisopochnoi webcams / live data | Reports
Semisopochnoi volcano books
Semisopochnoi volcano eruptions:
2019, 2018, 1987
Typical eruption style:
unspecified
Last earthquakes nearby
Latest satellite images

Sentinel hub | Landsat 8
 

Semisopochnoi volcano news & activity updates:

Semisopochnoi volcano (Aleutian Islands) activity update: increased seismic activity, eruption warning

Thursday Mar 26, 2015 18:03 PM | BY: T

Current seismic signal at Semisopochnoi (AVO)
Current seismic signal at Semisopochnoi (AVO)
The Alaska volcano observatory (AVO) detected significantly increased earthquake activity under the volcano and warns of a possible eruption:
"Earthquake activity that began in January continues, and has increased in intensity over the past few days. In addition, we have detected brief periods of seismic tremor, which can indicate movement of magma or magmatic gases. Thus we are increasing the aviation color code to YELLOW and the volcano alert level to ADVISORY." (AVO)
Previous news
Current seismic activity (CEAP station / AVO)
Wednesday, Jul 23, 2014
Earthquakes have decreased but are still above background levels. No eruptive activity has been recorded. Alert level remains yellow. [more]
Tuesday, Jul 01, 2014
The earthquake swarm that began on June 9 continues. No sign of activity was noted in satellite images over the past 24 hours. (AVO) [more]
Current seismic activity (CEAP station / AVO)
Thursday, Jun 19, 2014
The earthquake swarm continues. No eruptive activity has been detected. [more]
Current seismic activity (CEAP station / AVO)
Monday, Jun 16, 2014
The earthquake swarm at the volcano that started on June 9 and escalated on June 12 continues. No eruptive activity is currently indicated and nothing was observed in cloudy satellite images over the past day. (AVO) [more]
Current seismic signal at Semisopochnoi volcano (CEAP station / AVO)
Friday, Jun 13, 2014
Another remote volcano in Alaska is showing signs of unrest or possible activity. The Alaska Volcano Observatory (AVO) sent out the following alert: ... [more]

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