Earthquake Activity in the Yellowstone Region : Preliminary Epicenters (April 1 – June 30, 2021)

Four times yearly, the Earthquake Information Center issues a Quarterly Seismicity Summary to relate the state of the network, which stations have been in operation, and list the earthquakes located for the period indicated. This report contains an epicenter map and listings of earthquakes detected and located in the Yellowstone region (lat. 44° 00ʹ′ – 45° 10ʹ′ N, long. 109° 45ʹ′ – 111° 30ʹ′ W).