Author

David Shelly

David Shelly

What causes earthquake swarms in Yellowstone?

By: - October 28, 2021

Earthquake swarms—sequences of elevated earthquake activity with no clear mainshock—are common at Yellowstone and many other places.  Swarms occur in a variety of volcanic and tectonic settings and have several possible causes. Some swarms are driven by slow fault slip that causes earthquakes on few sticky patches of the fault.  Other swarms are generated when magma-filled cracks push […]