As expected, another rapid-fire swarm broke out virtually in the same location as the August 29, 2019 earthquake swarm. This swarm, the most recent on August 31, was about half of the strength and size as the August 29, 2019 swarm. In this post I will show the usual seismic plots and seismic audio. Could more swarms be on the way? It is possible, but I think the seismicity is calming down for now. However, those have been some famous last words for people in the past (including myself)!
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In the afternoon/evening of August 29, 2019, the strongest rapid-fire swarm to strike Yellowstone since late-2018 occurred. It was a typical strong rapid-fire swarm which struck along the East Mount Sheridan fault system.
The characteristics of this swarm are indicative of some type of magmatic fluid migration, likely hydrothermal fluids which do commonly transport up towards the surface. I will show the usual seismic plots and seismic audio to this earthquake swarm. Please click the title of this post or "read more" to continue... |
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February 2020
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