If you recall reports last summer of the Yellowstone National Park’s active super volcano. David Shelley a seismologist from the USGS said, “In fact, earthquakes themselves may allow the fluid to migrate more efficiently through faults in the rock,” he said, noting that the earthquakes weren’t accompanied by other signs of “volcanic unrest,” indicating the caldera is not going to blow its lid anytime soon.

For more info, please read the original article by IFL Science:
https://www.iflscience.com/environment/we-finally-know-what-caused-those-three-months-of-earthquake-swarms-in-yellowstone/