M3.1 earthquake Utah

Magnitude

3.1 (md), minor

Local time

Tue, Mar 10, 1987, 12:28 AM MST

UTC

1987-03-10 07:28:12 UTC

Depth

3.8 km (2.4 mi), shallow

Epicenter

41.874° N, 112.726° W

Region

Idaho

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 0.7 km in depth

Depth from

From location

Station coverage gap

153°

Stations used

25

• Thatcher, UtahPopulation 789. Forecast41 kmWNW
• Brigham City, UtahPopulation 18,752. Forecast72 kmNW
• Salt Lake City, UtahPopulation 215,548. Forecast142 kmNNW

After

1. 2.09 km S of Snowville, UtahThu, Mar 12, 6:34 PM MST · 14438 days ago · 7 km deep · 1 km away
2. 1.89 km S of Snowville, UtahThu, Mar 12, 7:54 PM MST · 14438 days ago · 5 km deep · 0 km away
3. 2.110 km S of Snowville, UtahFri, Mar 13, 6:02 AM MST · 14438 days ago · 7 km deep · 0 km away
4. 1.910 km ENE of Howell, UtahMon, Mar 16, 11:37 PM MST · 14434 days ago · 4 km deep · 34 km away
5. 1.910 km ENE of Howell, UtahTue, Mar 17, 12:05 AM MST · 14434 days ago · 1 km deep · 34 km away
6. 3.010 km ENE of Howell, UtahTue, Mar 17, 8:07 AM MST · 14434 days ago · 2 km deep · 32 km away
7. 2.110 km ENE of Howell, UtahTue, Mar 17, 8:07 PM MST · 14433 days ago · 2 km deep · 33 km away
8. 2.59 km S of Snowville, UtahFri, Mar 20, 6:19 PM MST · 14430 days ago · 5 km deep · 1 km away
9. 1.617 km ENE of Snowville, UtahSat, Mar 21, 5:51 AM MST · 14430 days ago · 2 km deep · 24 km away
10. 3.19 km S of Snowville, UtahSat, Mar 21, 7:41 PM MST · 14429 days ago · 4 km deep · 1 km away
11. 2.19 km S of Snowville, UtahSat, Mar 21, 7:48 PM MST · 14429 days ago · 0 km deep · 2 km away
12. 2.48 km SSW of Snowville, UtahSat, Mar 21, 8:00 PM MST · 14429 days ago · 6 km deep · 2 km away
13. 2.010 km ENE of Howell, UtahSun, Mar 29, 10:59 AM MST · 14421 days ago · 4 km deep · 33 km away
14. 2.011 km E of Howell, UtahWed, Apr 1, 8:36 AM MST · 14419 days ago · 1 km deep · 36 km away
15. 3.510 km ENE of Howell, UtahWed, Apr 1, 9:40 AM MST · 14418 days ago · 5 km deep · 34 km away
16. 2.610 km ENE of Howell, UtahWed, Apr 1, 9:46 AM MST · 14418 days ago · 4 km deep · 33 km away
17. 1.89 km ENE of Howell, UtahWed, Apr 1, 9:54 AM MST · 14418 days ago · -1 km deep · 33 km away
18. 3.110 km ENE of Howell, UtahWed, Apr 1, 2:44 PM MST · 14418 days ago · 5 km deep · 33 km away
19. 2.710 km ENE of Howell, UtahSat, Apr 4, 3:30 PM MST · 14415 days ago · 4 km deep · 34 km away
20. 1.712 km S of Snowville, UtahWed, Apr 15, 5:16 PM MDT · 14404 days ago · 6 km deep · 3 km away
21. 1.711 km E of Howell, UtahThu, Apr 16, 7:15 AM MDT · 14404 days ago · 3 km deep · 35 km away
22. 2.711 km S of Snowville, UtahSat, Apr 18, 6:19 PM MDT · 14401 days ago · 10 km deep · 2 km away
23. 1.615 km S of Snowville, UtahSat, Apr 18, 8:17 PM MDT · 14401 days ago · 11 km deep · 5 km away
24. 1.912 km SSE of Snowville, UtahThu, Apr 23, 9:37 PM MDT · 14396 days ago · 5 km deep · 5 km away
25. 3.212 km SSE of Snowville, UtahThu, Apr 23, 9:55 PM MDT · 14396 days ago · 5 km deep · 5 km away
26. 1.611 km SSE of Snowville, UtahFri, Apr 24, 6:16 AM MDT · 14396 days ago · 1 km deep · 6 km away
27. 2.312 km SSE of Snowville, UtahFri, Apr 24, 6:17 AM MDT · 14396 days ago · 4 km deep · 7 km away
28. 3.112 km SSE of Snowville, UtahFri, Apr 24, 1:32 PM MDT · 14395 days ago · 5 km deep · 6 km away
29. 2.713 km W of Portage, UtahSat, Apr 25, 2:28 AM MDT · 14395 days ago · 7 km deep · 28 km away
30. 2.412 km SSE of Snowville, UtahSun, Apr 26, 7:43 AM MDT · 14394 days ago · 5 km deep · 6 km away
31. 2.613 km SSE of Snowville, UtahSun, Apr 26, 10:30 PM MDT · 14393 days ago · 6 km deep · 6 km away
32. 1.812 km SSE of Snowville, UtahMon, May 4, 11:53 PM MDT · 14385 days ago · 1 km deep · 6 km away
33. 1.810 km ENE of Howell, UtahTue, May 5, 4:52 PM MDT · 14384 days ago · 4 km deep · 33 km away

Before

1. 2.310 km S of Snowville, UtahTue, Mar 10, 12:05 AM MST · 14441 days ago · 8 km deep · 0 km away
2. 1.610 km ENE of Howell, UtahSat, Mar 7, 12:32 AM MST · 14444 days ago · 0 km deep · 33 km away
3. 2.310 km ENE of Howell, UtahThu, Mar 5, 9:28 PM MST · 14445 days ago · 0 km deep · 33 km away
4. 1.610 km ENE of Howell, UtahThu, Mar 5, 5:26 PM MST · 14445 days ago · 0 km deep · 33 km away
5. 1.910 km ENE of Howell, UtahTue, Mar 3, 3:56 PM MST · 14447 days ago · 0 km deep · 33 km away
6. 2.910 km ENE of Howell, UtahTue, Mar 3, 11:43 AM MST · 14447 days ago · 2 km deep · 33 km away
7. 1.610 km ENE of Howell, UtahSun, Mar 1, 4:58 AM MST · 14450 days ago · 1 km deep · 34 km away
8. 2.5UtahSat, Feb 28, 2:16 PM MST · 14450 days ago · 5 km deep · 33 km away
9. 1.910 km E of Howell, UtahSat, Feb 28, 3:18 AM MST · 14451 days ago · 0 km deep · 34 km away
10. 2.810 km ENE of Howell, UtahFri, Feb 27, 10:24 PM MST · 14451 days ago · 4 km deep · 35 km away
11. 2.710 km ENE of Howell, UtahFri, Feb 27, 3:10 PM MST · 14451 days ago · 2 km deep · 34 km away
12. 1.711 km ENE of Howell, UtahThu, Feb 26, 11:17 AM MST · 14452 days ago · 1 km deep · 33 km away
13. 2.09 km ENE of Howell, UtahThu, Feb 26, 8:51 AM MST · 14452 days ago · 4 km deep · 33 km away
14. 2.510 km ENE of Howell, UtahThu, Feb 26, 6:01 AM MST · 14453 days ago · 6 km deep · 33 km away
15. 1.910 km ENE of Howell, UtahWed, Feb 25, 4:18 PM MST · 14453 days ago · 1 km deep · 34 km away
16. 2.110 km ENE of Howell, UtahWed, Feb 25, 3:43 PM MST · 14453 days ago · 1 km deep · 34 km away
17. 1.610 km ENE of Howell, UtahWed, Feb 25, 1:09 PM MST · 14453 days ago · 1 km deep · 33 km away
18. 2.511 km ENE of Howell, UtahWed, Feb 25, 12:43 PM MST · 14453 days ago · 3 km deep · 34 km away
19. 2.010 km ENE of Howell, UtahWed, Feb 25, 11:26 AM MST · 14453 days ago · 0 km deep · 34 km away
20. 1.511 km ENE of Howell, UtahWed, Feb 25, 8:09 AM MST · 14454 days ago · 7 km deep · 34 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50031875 (also filed as usp000335k). Read Tue, Sep 22, 2026, 3:07 AM UTC.