M 3.9 near Tremonton, UT

University of Utah Seismograph Stations
Released: September 24, 2019 11:00 AM MDT

The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.9 occurred at 10:15 AM on September 24, 2019(MDT).  The epicenter of the shock was located north of the Great Salt Lake, 14 miles northwest of Tremonton, UT. 

This earthquake was reported felt throughout northern Utah including in the city of Tremonton and the surrounding communities.  A total of 45 earthquakes of magnitude 3.0 or greater have occurred within 16 miles of the epicenter of this event since 1962.  The largest of these events was a magnitude 4.5 on July 05, 1989, 11 miles west-southwest of Tremonton, UT.

Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey website: earthquake.usgs.gov.

Earthquake Summary:

Date (UTC):   September 24, 2019         Time (UTC):   16:15
Date (local): September 24, 2019         Time (local): 10:15 AM MDT
Latitude:     41 48.94′ N
Longitude:    112 23.38′ W
Preferred magnitude: 3.90 Ml

1930 – Grover, WY – M 5.8

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.

For additional information about this earthquake:

Earthquake Summary 3D Newspaper Articles 3D Additional Resources 3D Blank Thumbnail

For more information about this project:

ISB Hist EQ Proj