Recent Earthquakes in the Yellowstone Region April 15-28, 2021
Month: April 2021
Recent Earthquakes in the Utah Region, April 8 – 21, 2021
Recent Earthquakes in the Yellowstone Region, April 1 – 14, 2021
2020 – Magna, UT – M 5.7
Intermountain Seismic Belt Historical Earthquake Project
March 18, 2020 – Magna, UT – M 5.7
On Wednesday, March 18, 2020, Utah was jolted by a magnitude 5.7 earthquake that occurred 3.1 miles north of Magna, Utah. The shaking from the earthquake was widely felt throughout the Wasatch Front area of north-central Utah.
Interest from the public was high. In addition to the COVID-19 pandemic and the start of quarantine, this was the first moderate-sized earthquake many Utah residents experienced. Social media and other digital coverage made it a widely-covered event.
There were no serious injuries or deaths that were recorded. Several buildings sustained damages as a result of the earthquake. Magna’s main street and a nearby trailer park were the hardest hit areas. Most of the damage occurred on buildings with unreinforced masonry. Total damage estimates were around $48.5 million a month after the mainshock.
The M5.7 was the largest earthquake to occur in Utah since a magnitude 5.9 earthquake in 1992 in southwestern Utah near St. George. The earthquake occurred in a seismically active part of the Salt Lake Valley. Before March 18, the area experienced six magnitude 3.0 or larger earthquakes since 1962, the largest being the magnitude 5.2 on September 5, 1962.
The M5.7 was designated the mainshock of the Magna Earthquake Sequence. There were no foreshocks. Over the course of 2–3 months, the aftershocks grew to number over 2,000. This count included 6 earthquakes in the M4 range and 34 earthquakes in the M3 range.
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Recent Earthquakes in the Utah Region, March 25 – April 7, 2021
M 3.0 Felt Near Cedar City, UT
PRESS RELEASE
University of Utah Seismograph Stations
Released: April 08, 2021 12:45 AM MDT
The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.0 occurred at 11:45 PM on April 07, 2021 (MDT). The epicenter of the shock was located 1.6 mi southwest of Summit, UT, 8.5 mi northwest of Brian Head, UT, and 9.3 mi northeast of Cedar City, UT. This earthquake was reported felt in Brian Head and Cedar City. A total of 28 earthquakes of magnitude 3.0 or greater have occurred within 16 mi of the epicenter of this event since 1962. The largest of these events was a magnitude 4.2 on June 28, 1992, 7.5 mi WNW of Cedar City, UT. One earthquake of magnitude 4.5 or greater has occurred within 32 mi of the epicenter of this event since 1962. This was a magnitude 4.6 on April 20, 1991, 13.2 mi SE of Minersville, UT.
Anyone who felt the earthquake is encouraged to fill out a survey form on the US Geological Survey website: https://earthquake.usgs.gov/earthquakes/eventpage/uu60432212/executive
Earthquake Summary:
Date (UTC): April 08, 2021 Time (UTC): 05:45
Date (local): April 07, 2021 Time (local): 11:45 PM MDT
Latitude: 37 46.98′ N
Longitude: 112 57.37′ W
Preferred magnitude: 3.00 Ml
M 3.0 Near Richfield, UT
PRESS RELEASE
University of Utah Seismograph Stations
Released: April 05, 2021 04:00 PM MDT
The University of Utah Seismograph Stations reports that a minor earthquake of magnitude 3.0 occurred at 02:56 PM on April 05, 2021 (MDT). The epicenter of the shock was located beneath Central Valley in south-central Utah, three miles south-southwest of the city of Richfield, Utah. This earthquake was reported felt in Richfield and in the nearby towns of Monroe and Salina. Today’s earthquake occurred within a seismically active area of Utah. Since 1962, 32 earthquakes of magnitude 3.0 or greater have occurred within 16 mi of the epicenter of today’s event. The largest of these events was a magnitude 5.2 on October 04, 1967, located 6.3 mi east-southeast of the town of Sevier, 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): April 05, 2021
Time (UTC): 20:56
Date (local): April 05, 2021
Time (local): 02:56 PM MDT
Latitude: 38 43.87′ N
Longitude: 112 6.23′ W
Preferred magnitude: 3.00 Ml
Recent Earthquakes in the Yellowstone Region, March 18 – 31, 2021
