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IMAGE 96871
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Annotated 24-hour webicorder display for station BGL at Mount Spurr Volcano on November 9, 2015 UTC. Six earthquakes, circled on the figure, occurred on November 9th, including the largest earthquake (M=1.4) in the sequence. The only UTC day with more located earthquakes in the swarm is November 11 with seven. Regional earthquakes that have occurred throughout Alaska are indicated by an “R. There was one earthquake at Spurr (02:05 UTC) that was not located in the swarm. The webicorder display was created with swarm with data available from IRIS. Swarm is a program for the real-time analysis of seismic waveform data. Currently it can load data from Earthworm Wave Servers, Winston Wave Servers, SEED volumes, and SAC files. Seismic data is available from IRIS at http://ds.iris.edu/mda/AV Figure by Jim Dixon, USGS/AVO.

Date: November 9, 2015 12:00 AM
Photographer/Creator: Dixon, Jim

Citation Information:
Figure courtesy of AVO/USGS.
Please cite the author and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.

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