New study suggests volcanic activity underlying Yellowstone NP may be easing

Recent earthquakes swarms in Yellowstone National Park and continued eruptions of Steamboat Geyser are proof that the park still is seismically active, though a new study suggests that the "hotspot" that fuels Yellowstone's geothermal fury has been in a "significant decline" for quite some time.

In May the famous geyser erupted five times, while nearly 300 earthquakes centered in the park registered on seismometers. The largest quake had a magnitude of 3.1 and was centered about 5 miles west of Norris Junction. 

https://www.nationalparkstraveler.org/2020/06/though-it-has-explosive-history-yellowstone-hotspot-might-be-waning