The Yellowstone region generates a lot of earthquakes. Although most of these earthquakes are too small to be felt by humans, they can be studied using data from Yellowstone’s dense, high-quality network of seismometers.

This network, located both within and surrounding the national park, records extremely subtle ground motions from up to thousands of (mostly tiny) earthquakes every year. Many of these earthquakes are routinely detected and located by University of Utah Seismographic Stations (UUSS), but others are recorded only weakly and aren’t detected on enough stations to be included in the earthquake catalog.

Earthquakes at Yellowstone are not distributed evenly in space and time — rather, they can occur in bunches and are often focused on specific areas. The patterns of how earthq

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