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News
Wednesday, Aug 07, 2019
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. ... [more]
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

Stratovolcano 1221 m / 4,006 ft, United States, Aleutian Islands, 51.93°N / 179.58°E
Nearby recent earthquakes (within 30km radius):

Earthquake list: past 7 days (only M>=-0.8)

Jump to quake statistics
 | archive: show
Updated: Sat, 17 Aug 22:43 UTC (GMT)
TimeMag. / DepthDistanceLocationMapSource
No recent earthquakes in our database

Earthquake statistics

Number of earthquakes vs time:

Past 24 hrs:
Number of quakes and energy past 24 hours
Past 30 days:
Number of quakes and energy past 30 days
Past 90 days:
Number of quakes vs time
Magnitude distribution and energy released:
Past 24 hrs:
Number of quakes and energy vs magnitude past 24 hrs Magnitudes of quakes and energy vs time past 24 hrs
Past 7 days:
Number of quakes and energy vs magnitude past 7 days Magnitudes of quakes and energy vs time past 7 days
Past 30 days:
Number of quakes and energy vs magnitude past 30 days Magnitudes of quakes and energy vs time past 30 days
 

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