Magnitude 3.94 Aftershock Latest To Rock Wasatch Front

Mar 22, 2020, 7:36 PM | Updated: 10:08 pm
A M3.94 aftershock was reported Sunday at 7:17 p.m....
A M3.94 aftershock was reported Sunday at 7:17 p.m.

SALT LAKE CITY, Utah — A magnitude 3.94 aftershock was reported with an epicenter about five miles north of Magna, according to the U.S. Geological Survey.

The quake was initially reported as a magnitude 4.1 Sunday evening. It was downgraded to a 4.0, then 3.94 by officials with the University of Utah Seismograph Stations.

Over 200 aftershocks have been felt along the Wasatch Front since Wednesday’s magnitude 5.7 mainshock. Two magnitude 4.6 aftershocks hit Wednesday — one just under an hour after the mainshock and another just after 1 p.m.

In the first 30 minutes after Sunday’s aftershock, three more earthquakes — magnitudes 1.9, 0.9 and 0.7 — were recorded.

The latest information can be found at our KSL Earthquake Tracker.

Keith Koper, director of the University of Utah Seismograph Stations, said there will be a lot of aftershocks, into the hundreds, and even thousands. However, he said there was no evidence of another large earthquake to come.

The seismologist said there’s only a four-to-five percent probability that there will be an earthquake larger than the 5.7 and that probability decreases as time goes on.

“We have had several strong, or moderate-sized aftershocks,” Koper said. “The largest one was 4.6. We do expect aftershocks to continue, and to feel aftershocks for weeks, at least for days.”

KSL 5 TV Live

Top Stories


Josh Ellis, KSL TV

Magnitude 2.5 micro earthquake felt across Salt Lake Valley

Seismologists said Friday's earthquake was another aftershock of the March 18, 2020, magnitude 5.7 quake.
4 months ago
A 5.7-magnitude earthquake with an epicenter near Magna rocked the Wasatch Front on March 18, 2020....
Eliza Pace, KSL TV

Utah to receive $1.5 million from FEMA for 2020 earthquake damages

FEMA has approved $1.5 million for "public assistance funding" for the Magna earthquake of 2020 according to a release.
7 months ago
The earthquake's epicenter was about 14 miles southeast of Wells, Nevada. (USGS)...
Kelsey Ott, KSL TV

Magnitude 4.7 earthquake shakes northeast Nevada

People reported feeling the quake from West Wendover to Battle Mountain.
1 year ago
Matthew Jacobson, KSL TV

‘Earthquake Swarm’ Occurring South Of Milford

An area south of Milford is experiencing an "earthquake swarm," according to the University of Utah Seismograph Stations. 
2 years ago
Morgan Wolfe, KSL TV

Utah Earthquake: Some Homes Still Damaged 1 Year Later

One Magna resident is looking back on the Utah earthquake that damaged his home - and his mental health.
2 years ago
A 5.7-magnitude earthquake with an epicenter near Magna rocked the Wasatch Front on March 18, 2020....
Jed Boal, KSL TV

What Seismologists Have Learned About The Wasatch Fault Since The Magna Earthquake

One year ago Thursday, a 5.7 magnitude earthquake with an epicenter enter near Magna shook many Utahns awake and it is still revealing new information about the Wasatch Fault.
2 years ago

Sponsored Articles

young woman with stickers on laptop computer...
Les Olson

7 ways print marketing materials can boost your business

Custom print marketing materials are a great way to leave an impression on clients or customers. Read for a few ideas to spread the word about your product or company.
young woman throwing clothes to organize a walk in closet...
Lighting Design

How to organize your walk-in closet | 7 easy tips to streamline your storage today

Read our tips to learn how to organize your walk-in closet for more storage space. These seven easy tips can help you get the most out of your space.
Types of Computer Malware and Examples...
PC Laptops

5 Nasty Types of Computer Malware and Examples | Everything You Need to Know to Keep Your Computer and Family Safe

Here are the different types of computer malware and examples that could potentially infect your computer.
tips how to quit smoking...

7 Tips How to Quit Smoking | Quitting Smoking Might be One of the Hardest Things You Ever Do but Here’s Where You Can Start

Quitting smoking cigarettes can be incredibly difficult. Here are 7 tips how to quit smoking to help you on your quitting journey.
Photo: Storyblocks...
Blue Stakes of Utah 811

Blue Stakes of Utah 811: 5 Reasons To Call 811 Before You Dig When Working in Your Yard

Call before you dig. Even at home, you could end up with serious injuries or broken utilities just because you didn't call Blue Stakes of Utah 811.
Days of...
Days of '47 Rodeo

TRIVIA: How well do you know your rodeo? Take this quiz before you go to the Days of ’47!

The Utah Days of ’47 Rodeo presented by Zions Bank is a one-of-a-kind Gold Medal Rodeo being held July 20-23, 25 at 7:30 PM. The Days of ’47 Rodeo How well do you know your rodeo trivia? Take the quiz to test your know-all before heading out to the Days of ’47 Rodeo at the […]
Magnitude 3.94 Aftershock Latest To Rock Wasatch Front