Earthquakes under Yellowstone Lake, Yellowstone National Park, Wyoming

[Astronuc]

An ongoing swarm with more than 141 earthquakes (as of about 11:30 AM MDT) is centered beneath Yellowstone Lake. At this point the University of Utah Seismograph Stations has located 40 earthquakes larger than M2, with two events in the M3 range. The swarm continues, and more locations will be posted throughout the day at https://quake.utah.edu/earthquake-center/quake-map.

Earthquake sequences like these are common and account for roughly 50% of the total seismicity in the Yellowstone region.
The current swarm has some similarities to one that occurred in roughly the same place in December 2020 -- more on that swarm at
https://www.usgs.gov/center-news/an...s_science_products=4#qt-news_science_products

3.2 Mag, 64 km ESE of West Yellowstone, Montana
2021-07-16 12:44:20 (UTC-07:00) Depth 7.1 km

2.5 Mag, 65 km ESE of West Yellowstone, Montana
2021-07-16 12:41:02 (UTC-07:00) Depth 7.0 km

2.5 Mag, 63 km ESE of West Yellowstone, Montana
2021-07-16 10:22:55 (UTC-07:00) Depth 5.4 km

2.5 Mag, 64 km SSE of Mammoth, Wyoming
2021-07-16 09:01:26 (UTC-07:00) Depth 2.7 km

2.7 Mag, 63 km SSE of Mammoth, Wyoming
2021-07-16 09:01:09 (UTC-07:00) Depth 6.6 km

2.9 Mag, 64 km SSE of Mammoth, Wyoming
2021-07-16 08:22:33 (UTC-07:00) Depth 5.7 km

3.1 Mag, 64 km ESE of West Yellowstone, Montana
2021-07-16 07:12:51 (UTC-07:00) Depth 7.2 km

2.5 Mag, 62 km ESE of West Yellowstone, Montana
2021-07-16 06:12:02 (UTC-07:00) Depth 1.1 km

2.6 Mag, 67 km SSE of Mammoth, Wyoming
2021-07-16 06:00:53 (UTC-07:00) Depth 8.6 km

3.0 Mag, 64 km ESE of West Yellowstone, Montana
2021-07-16 05:54:41 (UTC-07:00) Depth 6.9 km

2.5 Mag, 65 km ESE of West Yellowstone, Montana
2021-07-16 05:30:39 (UTC-07:00) Depth 8.7 km

2.5 Mag, 64 km ESE of West Yellowstone, Montana
2021-07-15 23:25:55 (UTC-07:00) Depth 7.7 km