Intermountain Seismic Belt Historical Earthquake Project
June 12, 1930 – Grover, WY – M 5.8
In the early hours of Thursday, June 12, 1930, a magnitude 5.8 earthquake occurred in Grover, Wyoming—approximately 10 miles north of Afton, Wyoming.
The shock was widely felt in the community of Grover. Loud noise accompanied the earthquake. Cracking occurred in a building and a swimming pool in the community. Cracks in plaster were also reported (Neumann & Bodle, 1932)
The earthquake was felt in Star Valley, Wyoming, where residents were awakened when their houses began shaking.
No injuries from this earthquake were reported.
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