University of Utah Seismograph Stations
@uussquake.bsky.social
The University of Utah Seismograph Stations (UUSS) is a research, educational, and public-service entity within the University of Utah.
Over the last two weeks, 64 earthquakes have been located in the Utah Region. Magnitudes ranged M 0.0 to 3.5. Two M 3.5's were located:
1) Feb. 5, located between Lehi and Saratoga Springs, UT.
2) Feb 13, located in West Valley City. Both were widely felt along the Wasatch Front.
1) Feb. 5, located between Lehi and Saratoga Springs, UT.
2) Feb 13, located in West Valley City. Both were widely felt along the Wasatch Front.
February 19, 2026 at 10:51 PM
Over the last two weeks, 64 earthquakes have been located in the Utah Region. Magnitudes ranged M 0.0 to 3.5. Two M 3.5's were located:
1) Feb. 5, located between Lehi and Saratoga Springs, UT.
2) Feb 13, located in West Valley City. Both were widely felt along the Wasatch Front.
1) Feb. 5, located between Lehi and Saratoga Springs, UT.
2) Feb 13, located in West Valley City. Both were widely felt along the Wasatch Front.
Friday’s M3.5 and its 13 aftershocks overlap with the aftershock region of the 2020 M5.7 Magna earthquake and is likely an aftershock of the 2020 event. Seismicity in the Magna area is still elevated relative to pre-2020 levels, indicating that aftershocks are still continuing.
February 17, 2026 at 8:08 PM
Friday’s M3.5 and its 13 aftershocks overlap with the aftershock region of the 2020 M5.7 Magna earthquake and is likely an aftershock of the 2020 event. Seismicity in the Magna area is still elevated relative to pre-2020 levels, indicating that aftershocks are still continuing.
Yep, that was an earthquake. M3.5 near West Valley City! Read our press release for more information: quake.utah.edu/press-releas...
M3.5 Earthquake near West Valley City - University of Utah Seismograph Stations
PRESS RELEASE University of Utah Seismograph Stations Released: February 13, 2026 07:14 PM MST The University of Utah Seismograph Stations (UUSS) reports that a minor...
quake.utah.edu
February 14, 2026 at 2:19 AM
Yep, that was an earthquake. M3.5 near West Valley City! Read our press release for more information: quake.utah.edu/press-releas...
Magnitude 3.5 earthquake near Magna. More info coming shortly. If you felt it, fill out a Did You Feel It report here: earthquake.usgs.gov/earthquakes/...
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earthquake.usgs.gov
February 14, 2026 at 2:00 AM
Magnitude 3.5 earthquake near Magna. More info coming shortly. If you felt it, fill out a Did You Feel It report here: earthquake.usgs.gov/earthquakes/...
Yellowstone Earthquake Update
01.29.26 – 02.11.26
44 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.2 located north of West Yellowstone, MT.
A small swarm of 12 earthquakes was located north of West Yellowstone, MT.
01.29.26 – 02.11.26
44 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.2 located north of West Yellowstone, MT.
A small swarm of 12 earthquakes was located north of West Yellowstone, MT.
February 12, 2026 at 7:22 PM
Yellowstone Earthquake Update
01.29.26 – 02.11.26
44 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.2 located north of West Yellowstone, MT.
A small swarm of 12 earthquakes was located north of West Yellowstone, MT.
01.29.26 – 02.11.26
44 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.2 located north of West Yellowstone, MT.
A small swarm of 12 earthquakes was located north of West Yellowstone, MT.
An M 3.5 earthquake near Lehi, UT, occurred at 12:53 today and was widely felt across the Wasatch Front.
Read our press release here: quake.utah.edu/press-releas...
Read our press release here: quake.utah.edu/press-releas...
M 3.5 earthquake near Lehi, UT - University of Utah Seismograph Stations
PRESS RELEASE University of Utah Seismograph Stations Released: February 05, 2026 01:23 PM MST The University of Utah Seismograph Stations (UUSS) reports that a minor...
quake.utah.edu
February 5, 2026 at 8:43 PM
An M 3.5 earthquake near Lehi, UT, occurred at 12:53 today and was widely felt across the Wasatch Front.
Read our press release here: quake.utah.edu/press-releas...
Read our press release here: quake.utah.edu/press-releas...
Utah Earthquake Update
From 01.22.26 – 02.04.26, 100 quakes have been located in the Utah Region. Mags ranged M -0.3 to 4.7. The largest was an M 4.7 on Jan. 22, south of Evanston, WY on the north slope of the Uinta Mountains. The quake was widely felt across northern Utah.
From 01.22.26 – 02.04.26, 100 quakes have been located in the Utah Region. Mags ranged M -0.3 to 4.7. The largest was an M 4.7 on Jan. 22, south of Evanston, WY on the north slope of the Uinta Mountains. The quake was widely felt across northern Utah.
February 5, 2026 at 7:14 PM
Utah Earthquake Update
From 01.22.26 – 02.04.26, 100 quakes have been located in the Utah Region. Mags ranged M -0.3 to 4.7. The largest was an M 4.7 on Jan. 22, south of Evanston, WY on the north slope of the Uinta Mountains. The quake was widely felt across northern Utah.
From 01.22.26 – 02.04.26, 100 quakes have been located in the Utah Region. Mags ranged M -0.3 to 4.7. The largest was an M 4.7 on Jan. 22, south of Evanston, WY on the north slope of the Uinta Mountains. The quake was widely felt across northern Utah.
Yellowstone Earthquake Update
01.15.26 – 01.28.26
49 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.5 located northeast of Lake, YNP. A small swarm of 14 earthquakes was located northeast of Old Faithful.
01.15.26 – 01.28.26
49 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.5 located northeast of Lake, YNP. A small swarm of 14 earthquakes was located northeast of Old Faithful.
January 29, 2026 at 6:36 PM
Yellowstone Earthquake Update
01.15.26 – 01.28.26
49 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.5 located northeast of Lake, YNP. A small swarm of 14 earthquakes was located northeast of Old Faithful.
01.15.26 – 01.28.26
49 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.5 located northeast of Lake, YNP. A small swarm of 14 earthquakes was located northeast of Old Faithful.
An update from the Bear River earthquake this morning. We have located a total of 15 earthquakes as of 4 PM MST with magnitudes from 1.1 - 4.7.
Our UUSS team of network engineers installed 2 temporary seismometers nearby in the first 8 hours to monitor aftershocks.
Our UUSS team of network engineers installed 2 temporary seismometers nearby in the first 8 hours to monitor aftershocks.
January 23, 2026 at 12:00 AM
An update from the Bear River earthquake this morning. We have located a total of 15 earthquakes as of 4 PM MST with magnitudes from 1.1 - 4.7.
Our UUSS team of network engineers installed 2 temporary seismometers nearby in the first 8 hours to monitor aftershocks.
Our UUSS team of network engineers installed 2 temporary seismometers nearby in the first 8 hours to monitor aftershocks.
Utah Earthquake Update
01.08.26 – 01.21.26
Over the last two weeks, 29 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.5. The largest was an M 2.2 on January 10, southwest of Colorado City, AZ.
01.08.26 – 01.21.26
Over the last two weeks, 29 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.5. The largest was an M 2.2 on January 10, southwest of Colorado City, AZ.
January 22, 2026 at 8:16 PM
Utah Earthquake Update
01.08.26 – 01.21.26
Over the last two weeks, 29 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.5. The largest was an M 2.2 on January 10, southwest of Colorado City, AZ.
01.08.26 – 01.21.26
Over the last two weeks, 29 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.5. The largest was an M 2.2 on January 10, southwest of Colorado City, AZ.
UUSS Director, Dr. Keith Koper, spoke with local news outlets this morning about the M4.7 earthquake. Watch it here:
youtu.be/I9LqjedQp5I
youtu.be/I9LqjedQp5I
M4.7 Earthquake in Northeastern Utah: Press Conference with UUSS Director Dr. Keith Koper
YouTube video by University of Utah Seismograph Stations
youtu.be
January 22, 2026 at 6:47 PM
UUSS Director, Dr. Keith Koper, spoke with local news outlets this morning about the M4.7 earthquake. Watch it here:
youtu.be/I9LqjedQp5I
youtu.be/I9LqjedQp5I
A M4.7 earthquake occurred in the Uinta Mountains this morning and was widely felt in northern Utah! Read our press release here: quake.utah.edu/press-releas...
M4.7 Earthquake S of Evanston, WY - University of Utah Seismograph Stations
PRESS RELEASE University of Utah Seismograph Stations Released: January 22, 2026 08:02 AM MST The University of Utah Seismograph Stations (UUSS) reports that a light...
quake.utah.edu
January 22, 2026 at 4:54 PM
A M4.7 earthquake occurred in the Uinta Mountains this morning and was widely felt in northern Utah! Read our press release here: quake.utah.edu/press-releas...
Yellowstone Earthquake Update (January 1 – 14, 2026) 43 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.3 – 2.6. The largest earthquake in the region was an M 2.6 on January 10, located about 3 miles west of Hebgen Lake, MT.
January 15, 2026 at 5:55 PM
Yellowstone Earthquake Update (January 1 – 14, 2026) 43 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.3 – 2.6. The largest earthquake in the region was an M 2.6 on January 10, located about 3 miles west of Hebgen Lake, MT.
Over the last two weeks, 64 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 3.3. The largest was an M 3.3 on January 4, east of Huntsville, UT.
January 8, 2026 at 6:19 PM
Over the last two weeks, 64 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 3.3. The largest was an M 3.3 on January 4, east of Huntsville, UT.
Over the last two weeks, 87 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 2.3. The largest was an M 2.3 on December 11, southeast of Manti, UT.
January 6, 2026 at 10:10 PM
Over the last two weeks, 87 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 2.3. The largest was an M 2.3 on December 11, southeast of Manti, UT.
Over this time period (December 18 – 31, 2025) 45 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.1 – 2.7.
The largest earthquake in the region was an M 2.7 on December 31, located about 6 miles south-southeast of Norris Junction, YNP.
The largest earthquake in the region was an M 2.7 on December 31, located about 6 miles south-southeast of Norris Junction, YNP.
January 6, 2026 at 10:04 PM
Over this time period (December 18 – 31, 2025) 45 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.1 – 2.7.
The largest earthquake in the region was an M 2.7 on December 31, located about 6 miles south-southeast of Norris Junction, YNP.
The largest earthquake in the region was an M 2.7 on December 31, located about 6 miles south-southeast of Norris Junction, YNP.
Over the last two weeks (December 4 – 17, 2025) 25 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M 0.1 – 2.1
December 18, 2025 at 9:08 PM
Over the last two weeks (December 4 – 17, 2025) 25 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M 0.1 – 2.1
Utah Earthquake Update: Over the last two weeks, 111 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 3.0. The largest was an M 3.0 on December 8, northwest of Little America, WY.
December 11, 2025 at 5:09 PM
Utah Earthquake Update: Over the last two weeks, 111 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 3.0. The largest was an M 3.0 on December 8, northwest of Little America, WY.
Yellowstone Earthquake Update: 115 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.0 located south-southwest of Mammoth, WY. An additional ongoing swarm northeast of Old Faithful includes 51 new earthquakes.
December 4, 2025 at 9:36 PM
Yellowstone Earthquake Update: 115 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.0 located south-southwest of Mammoth, WY. An additional ongoing swarm northeast of Old Faithful includes 51 new earthquakes.
Utah Earthquake Update: Over the last two weeks, 131 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 to 3.7. The largest was an M 3.7 on November 17, northwest of Little America, WY.
December 4, 2025 at 9:26 PM
Utah Earthquake Update: Over the last two weeks, 131 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 to 3.7. The largest was an M 3.7 on November 17, northwest of Little America, WY.
The last @utahfootball.bsky.social home game is over and what a game it was! what an amazing comeback! It started with Tao Johnson's pick 2, Larry Simmons' TD grab, Devon Dampier's TD, and Lander Barton's interception! @utahathletics.bsky.social @utah.edu #UteQuake
November 26, 2025 at 8:37 PM
The last @utahfootball.bsky.social home game is over and what a game it was! what an amazing comeback! It started with Tao Johnson's pick 2, Larry Simmons' TD grab, Devon Dampier's TD, and Lander Barton's interception! @utahathletics.bsky.social @utah.edu #UteQuake
Earthquake Early Warning is operational along the U.S. West Coast, but could it give Utahns enough warning for the next Big One? UUSS scientists evaluated their seismic network and Utah’s expected large earthquakes to find out! Read the BSSA article here: doi.org/10.1785/0120...
Exploring the Feasibility of a Regional Earthquake Early Warning System in Utah | Bulletin of the Seismological Society of America | GeoScienceWorld
ABSTRACT. In terms of annualized earthquake loss and casualties, Utah has the fourth‐highest seismic risk among U.S. states, after California, Washington,
doi.org
November 26, 2025 at 6:23 PM
Earthquake Early Warning is operational along the U.S. West Coast, but could it give Utahns enough warning for the next Big One? UUSS scientists evaluated their seismic network and Utah’s expected large earthquakes to find out! Read the BSSA article here: doi.org/10.1785/0120...
Yellowstone Earthquake Update 11.06.25 – 11.19.25, 121 quakes were located in the Yellowstone Region. The largest was an M 3.2 located south-southwest of the Mammoth, WY. This is part of an ongoing swarm. A second swarm northeast of Old Faithful includes 49 quakes.
November 20, 2025 at 8:21 PM
Yellowstone Earthquake Update 11.06.25 – 11.19.25, 121 quakes were located in the Yellowstone Region. The largest was an M 3.2 located south-southwest of the Mammoth, WY. This is part of an ongoing swarm. A second swarm northeast of Old Faithful includes 49 quakes.
The University of Utah Seismograph Stations (UUSS) reports that a minor earthquake of magnitude 3.7 occurred at 4:39 PM on November 17, 2025. The epicenter of the shock was located about 22 mi west of Green River, WY. (1/3)
November 18, 2025 at 12:46 AM
The University of Utah Seismograph Stations (UUSS) reports that a minor earthquake of magnitude 3.7 occurred at 4:39 PM on November 17, 2025. The epicenter of the shock was located about 22 mi west of Green River, WY. (1/3)
Utah Earthquake Update: Over the last two weeks (October 30 – November 12, 2025), 54 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.0 to 2.9. The largest earthquake in the reporting period was an M 2.9 on November 12, northwest of Malad City, ID.
November 13, 2025 at 8:21 PM
Utah Earthquake Update: Over the last two weeks (October 30 – November 12, 2025), 54 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.0 to 2.9. The largest earthquake in the reporting period was an M 2.9 on November 12, northwest of Malad City, ID.
