Earthquakes located under Trident volcano, Alaska, from August 1 to September 13, 2022. The top panel shows earthquakes per day, and the bottom panel shows earthquake depths through time. A swarm of relatively deep earthquakes started on August 24, with earthquakes getting more shallow over time. The rate of events per day remained elevated through the first week of September and is almost back to normal as of September 13. The size of the circles in the lower panel reflects the magnitude of the earthquakes as shown in the legend.
Image courtesy of AVO/USGS.
Please cite the photographer and the Alaska Volcano Observatory / U.S. Geological Survey when using this image.
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