M2.1 earthquake 78 km E of Montello, Nevada

Magnitude

2.1 (Md, duration), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Tue, Feb 17, 1987, 10:51 PM MST

UTC

1987-02-18 05:51:48 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

41.338° N, 113.267° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.5 km horizontally, 10.6 km in depth

Depth from

From location

Station coverage gap

271°, poorly surrounded by stations

Stations used

7

• Thatcher, UtahPopulation 789. Forecast90 kmWSW
• West Point, UtahPopulation 10,345. Forecast102 kmWNW
• West Valley City, UtahPopulation 136,208. Forecast128 kmNW
• Phoenix, ArizonaPopulation 1,650,070. Forecast884 kmN

After

1. 3.910 km ENE of Howell, UtahWed, Feb 25, 5:30 AM MST · 14463 days ago · 5 km deep · 95 km away
2. 1.511 km ENE of Howell, UtahWed, Feb 25, 8:09 AM MST · 14463 days ago · 7 km deep · 96 km away
3. 2.010 km ENE of Howell, UtahWed, Feb 25, 11:26 AM MST · 14463 days ago · 0 km deep · 95 km away
4. 2.511 km ENE of Howell, UtahWed, Feb 25, 12:43 PM MST · 14463 days ago · 3 km deep · 96 km away
5. 1.610 km ENE of Howell, UtahWed, Feb 25, 1:09 PM MST · 14463 days ago · 1 km deep · 96 km away
6. 2.110 km ENE of Howell, UtahWed, Feb 25, 3:43 PM MST · 14463 days ago · 1 km deep · 95 km away
7. 1.910 km ENE of Howell, UtahWed, Feb 25, 4:18 PM MST · 14463 days ago · 1 km deep · 95 km away
8. 2.510 km ENE of Howell, UtahThu, Feb 26, 6:01 AM MST · 14462 days ago · 6 km deep · 95 km away
9. 2.09 km ENE of Howell, UtahThu, Feb 26, 8:51 AM MST · 14462 days ago · 4 km deep · 94 km away
10. 1.711 km ENE of Howell, UtahThu, Feb 26, 11:17 AM MST · 14462 days ago · 1 km deep · 96 km away
11. 2.710 km ENE of Howell, UtahFri, Feb 27, 3:10 PM MST · 14461 days ago · 2 km deep · 95 km away
12. 2.810 km ENE of Howell, UtahFri, Feb 27, 10:24 PM MST · 14461 days ago · 4 km deep · 95 km away
13. 1.910 km E of Howell, UtahSat, Feb 28, 3:18 AM MST · 14460 days ago · 0 km deep · 95 km away
14. 2.5UtahSat, Feb 28, 2:16 PM MST · 14460 days ago · 5 km deep · 95 km away
15. 1.610 km ENE of Howell, UtahSun, Mar 1, 4:58 AM MST · 14459 days ago · 1 km deep · 96 km away
16. 2.910 km ENE of Howell, UtahTue, Mar 3, 11:43 AM MST · 14457 days ago · 2 km deep · 95 km away
17. 1.910 km ENE of Howell, UtahTue, Mar 3, 3:56 PM MST · 14457 days ago · 0 km deep · 95 km away
18. 1.610 km ENE of Howell, UtahThu, Mar 5, 5:26 PM MST · 14455 days ago · 0 km deep · 96 km away
19. 2.310 km ENE of Howell, UtahThu, Mar 5, 9:28 PM MST · 14455 days ago · 0 km deep · 96 km away
20. 1.610 km ENE of Howell, UtahSat, Mar 7, 12:32 AM MST · 14454 days ago · 0 km deep · 95 km away
21. 2.310 km S of Snowville, UtahTue, Mar 10, 12:05 AM MST · 14451 days ago · 8 km deep · 74 km away
22. 3.1UtahTue, Mar 10, 12:28 AM MST · 14451 days ago · 4 km deep · 75 km away
23. 2.09 km S of Snowville, UtahThu, Mar 12, 6:34 PM MST · 14448 days ago · 7 km deep · 75 km away
24. 1.89 km S of Snowville, UtahThu, Mar 12, 7:54 PM MST · 14448 days ago · 5 km deep · 75 km away
25. 2.110 km S of Snowville, UtahFri, Mar 13, 6:02 AM MST · 14447 days ago · 7 km deep · 74 km away
26. 1.910 km ENE of Howell, UtahMon, Mar 16, 11:37 PM MST · 14444 days ago · 4 km deep · 96 km away
27. 1.910 km ENE of Howell, UtahTue, Mar 17, 12:05 AM MST · 14444 days ago · 1 km deep · 95 km away
28. 3.010 km ENE of Howell, UtahTue, Mar 17, 8:07 AM MST · 14443 days ago · 2 km deep · 95 km away
29. 2.110 km ENE of Howell, UtahTue, Mar 17, 8:07 PM MST · 14443 days ago · 2 km deep · 95 km away
30. 2.59 km S of Snowville, UtahFri, Mar 20, 6:19 PM MST · 14440 days ago · 5 km deep · 76 km away
31. 1.617 km ENE of Snowville, UtahSat, Mar 21, 5:51 AM MST · 14439 days ago · 2 km deep · 99 km away
32. 3.19 km S of Snowville, UtahSat, Mar 21, 7:41 PM MST · 14439 days ago · 4 km deep · 76 km away
33. 2.19 km S of Snowville, UtahSat, Mar 21, 7:48 PM MST · 14439 days ago · 0 km deep · 76 km away
34. 2.48 km SSW of Snowville, UtahSat, Mar 21, 8:00 PM MST · 14439 days ago · 6 km deep · 76 km away
35. 2.010 km ENE of Howell, UtahSun, Mar 29, 10:59 AM MST · 14431 days ago · 4 km deep · 96 km away
36. 2.011 km E of Howell, UtahWed, Apr 1, 8:36 AM MST · 14428 days ago · 1 km deep · 95 km away
37. 3.510 km ENE of Howell, UtahWed, Apr 1, 9:40 AM MST · 14428 days ago · 5 km deep · 95 km away
38. 2.610 km ENE of Howell, UtahWed, Apr 1, 9:46 AM MST · 14428 days ago · 4 km deep · 95 km away
39. 1.89 km ENE of Howell, UtahWed, Apr 1, 9:54 AM MST · 14428 days ago · -1 km deep · 94 km away
40. 3.110 km ENE of Howell, UtahWed, Apr 1, 2:44 PM MST · 14428 days ago · 5 km deep · 95 km away
41. 2.710 km ENE of Howell, UtahSat, Apr 4, 3:30 PM MST · 14425 days ago · 4 km deep · 95 km away
42. 1.712 km S of Snowville, UtahWed, Apr 15, 5:16 PM MDT · 14414 days ago · 6 km deep · 74 km away
43. 1.711 km E of Howell, UtahThu, Apr 16, 7:15 AM MDT · 14413 days ago · 3 km deep · 95 km away
44. 2.711 km S of Snowville, UtahSat, Apr 18, 6:19 PM MDT · 14411 days ago · 10 km deep · 75 km away
45. 1.615 km S of Snowville, UtahSat, Apr 18, 8:17 PM MDT · 14411 days ago · 11 km deep · 72 km away

Before

1. 2.315 km WSW of Corinne, UtahTue, Feb 10, 4:55 AM MST · 14478 days ago · 5 km deep · 84 km away
2. 2.514 km WSW of Corinne, UtahTue, Feb 10, 1:39 AM MST · 14479 days ago · 19 km deep · 85 km away
3. 2.89 km ENE of Howell, UtahWed, Feb 4, 9:07 AM MST · 14484 days ago · 5 km deep · 95 km away
4. 1.610 km WSW of Thatcher, UtahFri, Jan 30, 2:45 PM MST · 14489 days ago · 0 km deep · 80 km away
5. 2.111 km E of Howell, UtahFri, Jan 23, 1:13 AM MST · 14497 days ago · 0 km deep · 96 km away
6. 1.910 km ENE of Howell, UtahThu, Jan 22, 8:44 PM MST · 14497 days ago · 3 km deep · 95 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50031615. Read Thu, Oct 1, 2026, 8:36 PM UTC.