University of Utah Seismograph Stations
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uussquake.bsky.social
University of Utah Seismograph Stations
@uussquake.bsky.social
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The University of Utah Seismograph Stations (UUSS) is a research, educational, and public-service entity within the University of Utah.
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uussquake.bsky.social
Magnitude vs Time plot for Yellowstone earthquakes Nov 20 - Dec 3
December 4, 2025 at 9:36 PM
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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.
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. This is near an ongoing swarm which added 28 quakes. An additional ongoing swarm northeast of Old Faithful includes 51 new earthquakes. Over the last two weeks (Nov. 20 – Dec. 3, 2025) 115 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.1 – 2.0. A continuation of a swarm that began on October 28 through December 3 has added an additional Twenty-eight earthquakes occurred as part of an ongoing swarm that began on October 28, totaling 108. The largest for this recording period was an M 1.7 on December 3rd.  This swarm is located about 14 miles south-southwest of Mammoth, WY.  The magnitudes ranged from M 0.3 – 3.7. A continuation of a swarm that began on October 28 through December 3 has added an additional Twenty-eight earthquakes occurred as part of an ongoing swarm that began on October 28, totaling 108. The largest for this recording period was an M 1.7 on December 3rd.  This swarm is located about 14 miles south-southwest of Mammoth, WY.  The magnitudes ranged from M 0.3 – 3.7.
December 4, 2025 at 9:36 PM
uussquake.bsky.social
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.
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. Over the last two weeks (November 13 – 26, 2025) 131 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 to 3.7. The largest earthquake in the reporting period was an M 3.7 on November 17, located about 3 miles northwest of Little America, WY. Magnitude vs Time plot for Utah Region Earthquakes Nov 13 -26
December 4, 2025 at 9:26 PM
uussquake.bsky.social
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
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Scatter plot titled "Earthquakes in the Yellowstone Region, November 6 – 19, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu
November 20, 2025 at 8:21 PM
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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 background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 11.06.25 – 11.19.25, 121 quakes have been located in the Yellowstone Region over the past two weeks. 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. Map of Yellowstone seismicity. Text: Over the last two weeks (November 6 – 19, 2025), 121 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.4 – 3.2. Zoomed-in map of Yellowstone seismicity. Text: A continuation of a swarm that began on October 28 through November 13 has added an additional 28 earthquakes for a total of 80. This includes an M 3.2 on Nov. 9 and an M 3.1 on Nov. 8. The M 3.2 was the largest of the reporting period. This swarm is located about 14 miles south-southwest of Mammoth, WY. The magnitudes ranged from M 0.3 – 3.7. Zoomed-in map of Yellowstone seismicity. Text: An ongoing swarm of 49 earthquakes began on November 6. It is clustered about 15 miles northeast of Old Faithful,YNP. The magnitudes ranged M -0.4 – 2.1.
November 20, 2025 at 8:21 PM
uussquake.bsky.social
‪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.
Background: mountainous lake scene image. Text: 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. Seismicity and topographic map of Utah. Text: 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. Zoomed-in seismicity map of southern Idaho near Malad, ID. Text: The largest earthquake in the reporting period was an M 2.9 on November 12, located about 26 miles east of Malad City, ID. Scatter plot titled "Earthquakes in the Utah Region, October 30 – November 12, 2025" with Date on the x-axis and Magnitude on the y-axis. Text: For more information about Utah earthquakes, visit quake.utah.edu
November 13, 2025 at 8:21 PM
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Yellowstone Earthquake Update 10.23.25 – 11.05.25. 111 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 3.7 located south-southwest of the Mammoth, WY.
The background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 10.23.25 – 11.05.25. 111 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 3.7 located south-southwest of Mammoth, WY. This is part of an ongoing swarm of 52 earthquakes. Map of Yellowstone seismicity. Text: Over the last two weeks (Oct. 23 – Nov. 05, 2025) 111 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.5 – 3.7. Scatter plot titled "Earthquakes in the Yellowstone Region, October 23 – November 5, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu Zoomed-in map of Yellowstone seismicity. Text: An ongoing swarm of 52 earthquakes, located about 14 miles south-southwest of Mammoth, WY, began on October 28. The magnitudes ranged from M 0.3 – 3.7. The M 3.7 is the largest earthquake during the reporting period and was felt in Yellowstone National Park.
November 6, 2025 at 5:16 PM
uussquake.bsky.social
What a day Saturday was! The punt return for a TD by Mana Carvalho was the largest #UteQuake we've recorded so far! Rice-Eccles Stadium was rocking! Go to tinyurl.com/UUvsCincy to get a summary of the game. @utahfootball.bsky.social @utahathletics.bsky.social @utah.edu
November 3, 2025 at 8:00 PM
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#UteQuake on @collegegameday.bsky.social ! Way to represent MUSS! Let's keep this going tonight and shake Rice-Eccles Stadium! @utah.edu @utahathletics.bsky.social @utahfootball.bsky.social
November 1, 2025 at 2:08 PM
uussquake.bsky.social
Want to watch Rice-Eccles shake during tomorrow nights Utes football game? Go here (t.co/SlK9sN68O2) and follow the directions on the image. Share your favorite signal with the hashtag #UteQuake. @utahfootball.bsky.social @utah.edu @utahathletics.bsky.social
October 31, 2025 at 9:10 PM
uussquake.bsky.social
#UteQuake is returning to ESPN GameDay tomorrow. Tune in and let's see if we can shake the set more than two years ago. @utahfootball.bsky.social @utahathletics.bsky.social @utah.edu Go Utes! @kirkherbstreit.bsky.social @patmcafeeshow.bsky.social
October 31, 2025 at 2:59 PM
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Utah Earthquake Update: Over the last two weeks (October 16 – 29, 2025) 41 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 2.4. The largest earthquake in the reporting period was an M 2.4 on October 27, located under 1 mile east of Beaver, UT.
Over the last two weeks (October 16 – 29, 2025) 41 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 2.4. The largest earthquake in the reporting period was an M 2.4 on October27, located east of Beaverr, UT. Seismicity and topographic map of Utah. Text: Over the last two weeks (October 16 – 29, 2025), 41 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.1 to 2.4. Zoomed-in seismicity map of southwest Utah near Beaver, UT. Text: The largest earthquake in the reporting period was an M 2.4 on October 27, located about 1 mile east of Beaver, UT. Scatter plot titled "Earthquakes in the Utah Region, October 16 – 29, 2025" with Date on the x-axis and Magnitude on the y-axis. Text: For more information about Utah earthquakes, visit quake.utah.edu
October 30, 2025 at 6:52 PM
uussquake.bsky.social
Ute Fans, the Utes need you! In order to make the Big12 Conference Championship game (and a possible rematch with the team down south), we need to win out. That begins with this coming Saturday against #17 Cincinnati.
#UteQuake @utahfootball.bsky.social @utahathletics.bsky.social @utah.edu
Seismic recording of the beginning of the Utah game against the Colorado Buffaloes last Saturday. Prominent signals include when the Utes came out of the tunnel, the MUSS banner/kickoff and the 63-yard touchdown run by Byrd Ficklin on the 2nd play of the game.
October 28, 2025 at 3:38 PM
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Scatter plot titled "Earthquakes in the Yellowstone Region, October 09 – 22, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu
October 23, 2025 at 8:34 PM
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Yellowstone Earthquake Update 10.09.25 – 10.22.25. 62 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2. located north of the East Entrance to Yellowstone National Park.
The background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 10.09.25 – 10.22.25. 62 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.1 located north of the East Entrance to Yellowstone National Park. A small swarm of 23 earthquakes was located east of Shoshone Lake on October 15. Map of Yellowstone seismicity. Text: Over the last two weeks (Oct. 09 – 22, 2025) 62 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.1 – 2.1. Zoomed-in map of Yellowstone seismicity. Text: The largest earthquake during the period was an M 2.1 on October 22, located about 12 miles north the East Entrance of Yellowstone National Park. Zoomed-in map of Yellowstone seismicity. Text: A swarm of 23 small earthquakes, located about 1 mile east of Shoshone Lake, occurred on October 15. The magnitudes ranged from M 0.7 – 1.9.
October 23, 2025 at 8:34 PM
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Utah Earthquake Update: Over the last two weeks (October 2 – 15, 2025) 41 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 2.8. The largest earthquake in the reporting period was an M 2.8 on October 8, located about 16 miles southeast of Heber, UT.
Over the last two weeks (October 2 – 15, 2025) 41 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 2.8. The largest earthquake in the reporting period was an M 2.8 on October 8, located about 16 miles southeast of Heber, UT. Map showing the last two weeks of earthquakes for the Utah region Map showing the largest earthquake in the reporting period was an M 2.8 on October 8, located about 16 miles southeast of Heber, UT. Magnitude vs Time plot for the last two weeks in the Utah Region
October 16, 2025 at 2:13 PM
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Yellowstone Earthquake Update 9.25.25 – 10.08.25. 52 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 3.3 located northeast of West Yellowstone, MT.
The background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 09.25.25 – 10.08.25. 52 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 3.3 located northeast of West Yellowstone, MT. Map of Yellowstone seismicity. Text: Over the last two weeks (Sep. 25 – Oct. 08, 2025) 52 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.3 – 3.3. Zoomed-in map of Yellowstone seismicity. Text: The largest earthquake during the period was an M 3.3 on September 28, located about 15 miles northeast of West Yellowstone, MT. This event is part of an ongoing cluster of 32 earthquakes. This includes an M 3.1 also on September 28. Scatter plot titled "Earthquakes in the Yellowstone Region, September 25 – October 08, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu
October 9, 2025 at 5:31 PM
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Utah Earthquake Update: Over the last two weeks, 40 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.4. The largest was a M 2.4 on September 28, northeast of Lyman, WY.
Utah Earthquake Update September 18 - October 1:Over the last two weeks, 40 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.2 to 2.4. The largest was a M 2.4 on September 28, northeast of Lyman, WY. Map of Utah Region Earthquakes. Map of the largest earthquake a M 2.4 near Lyman, WY. Magnitude vs Time plot of earthquakes from September 18 - October 1, 2025.
October 2, 2025 at 5:21 PM
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Yellowstone Earthquake Update 9.11.25 – 9.24.25. 37 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.1 located northeast of West Yellowstone, MT.
The background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 09.10.25 – 09.24.25. 37 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.1 located northeast of West Yellowstone, MT. Map of Yellowstone seismicity. Text: Over the last two weeks (Sep. 11 – 24, 2025) 37 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M -0.2 – 2.1. Zoomed-in map of Yellowstone seismicity. Text: The largest earthquake during the period was an M 2.1 on September 11, located about 15 miles northeast of West Yellowstone, MT. Scatter plot titled "Earthquakes in the Yellowstone Region, September 11 – 24, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu
September 25, 2025 at 5:19 PM
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Utah Earthquake Update 09.04.25 – 09.17.25 Over the last two weeks, 67 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 4.1. The largest was an M 4.1 on September 10, west of Vernal, UT.
Text: Utah Earthquake Update 09.04.25 – 09.17.25 Over the last two weeks, 67 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 4.1. The largest was an M 2.6 on September 10, west of Vernal, UT. Background image of an alpine lake. Seismicity and topographic map of Utah. Text: Over the last two weeks (September 4 – 17, 2025), 67 earthquakes have been located in the Utah Region. The magnitudes ranged M 0.1 to 4.1. Zoomed-in seismicity map of southwest Utah near Vernal, UT. Text: The largest earthquake in the reporting period was an M 4.1 on September 10, located about 8 miles west of Vernal, UT. This earthquake was widely felt and deeper than most Utah earthquakes at 42 miles below sea level. Scatter plot titled "Earthquakes in the Utah Region, September 4 – 17, 2025" with Date on the x-axis and Magnitude on the y-axis. Text: For more information about Utah earthquakes, visit quake.utah.edu
September 18, 2025 at 5:16 PM
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Yellowstone Earthquake Update 8.28.25 – 9.10.25. 42 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.3 located northeast of West Yellowstone, MT.
The background image is of Grand Prismatic Spring in Yellowstone National Park. Text: Yellowstone Earthquake Update 08.28.25–09.10.25 42 earthquakes have been located in the Yellowstone Region over the past two weeks. The largest was an M 2.3 located northeast of West Yellowstone, MT. Map of Yellowstone seismicity. Text: Over the last two weeks (Aug. 28 – Sept. 10, 2025) 42 earthquakes have been located in the Yellowstone Region. The magnitudes ranged M 0.1 – 2.3. Zoomed-in map of Yellowstone seismicity. Text: The largest earthquake during the period was an M 2.3 on August 29, located about 15 miles northeast of West Yellowstone, MT. Scatter plot titled "Earthquakes in the Yellowstone Region, August 28 – September 10, 2025" with Date on x-axis and Magnitude on y-axis. Text: For more information about Yellowstone earthquakes, visit quake.utah.edu
September 11, 2025 at 6:17 PM
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Check out this #UteQuake from the Utah vs. Cal Poly football game on Saturday. Here you can see the shaking of
Rice Eccles Stadium during the Johnathan Hall interception and the Rayshawn Glover punt return! Go Utes! @utahfootball.bsky.social @utahathletics.bsky.social @utah.edu
Image of @UteQuake seismogram (x-axis = time and y-axis = ground displacement) during the University of Utah vs. Cal Poly football game. The data shows two increased areas of ground displacement during Johnathan Hall's interception return to the 1-yard line and Rayshawn Glover's 51-yard punt return.
September 9, 2025 at 4:00 PM
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Scatter plot titled "Earthquakes in the Utah Region, August 21 – September 3, 2025" with Date on the x-axis and Magnitude on the y-axis. Text: For more information about Utah earthquakes, visit quake.utah.edu
September 5, 2025 at 6:42 PM
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Utah Earthquake Update 08.21.25 – 09.03.25 Over the last two weeks, 303 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 to 2.6. The largest was an M 2.6 on August 24, northwest of Cedar City, UT.
Text: Utah Earthquake Update 08.21.25 – 09.03.25 Over the last two weeks, 303 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 to 2.6. The largest was an M 2.6 on August 24, northwest of Cedar City, UT. Background image of an alpine lake. Seismicity and topographic map of Utah. Text: Over the last two weeks (August 21 – September 3, 2025), 303 earthquakes have been located in the Utah Region. The magnitudes ranged M -0.4 – 2.6. Zoomed-in seismicity map of southwest Utah near Milford, UT. Text: A swarm of 249 earthquakes, located about 12 miles northeast of Milford, UT, is related to ongoing EGS (Enhanced Geothermal Systems) development in the area. The magnitudes range from M -0.4 to 2.1, with 82% being M < 1.5. Zoomed-in seismicity map of southwest Utah near Cedar City, UT. Text: The largest earthquake in the reporting period was an M 2.6 on August 24, located about 65 miles northwest of Cedar City, UT.
September 5, 2025 at 6:42 PM