Magna Earthquake Does Not Diminish the Risk of a Major M7 to M7.5 Earthquake Salt Lake City — Thurs., March 18, 2021 marks the one year anniversary of the moderate magnitude (M) 5.7 earthquake that struck northern Utah near Magna. The mainshock was widely felt across the Wasatch Front. Over 30,000 felt reports were received by U.S. Geological Survey (USGS) …