M3.5 earthquake 10 km ENE of Howell, Utah

Magnitude

3.5 (ml), minor

Local time

Wed, Apr 1, 1987, 9:40 AM MST

UTC

1987-04-01 16:40:41 UTC

Depth

4.8 km (3.0 mi), shallow

Epicenter

41.823° N, 112.327° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 1.0 km in depth

Depth from

From location

Station coverage gap

74°

Stations used

21

• Thatcher, UtahPopulation 789. Forecast15 kmN
• Smithfield, UtahPopulation 10,782. Forecast41 kmW
• Salt Lake City, UtahPopulation 215,548. Forecast124 kmNNW

After

1. 2.610 km ENE of Howell, UtahWed, Apr 1, 9:46 AM MST · 14419 days ago · 4 km deep · 0 km away
2. 1.89 km ENE of Howell, UtahWed, Apr 1, 9:54 AM MST · 14419 days ago · -1 km deep · 1 km away
3. 3.110 km ENE of Howell, UtahWed, Apr 1, 2:44 PM MST · 14419 days ago · 5 km deep · 1 km away
4. 2.710 km ENE of Howell, UtahSat, Apr 4, 3:30 PM MST · 14416 days ago · 4 km deep · 0 km away
5. 1.712 km S of Snowville, UtahWed, Apr 15, 5:16 PM MDT · 14405 days ago · 6 km deep · 32 km away
6. 1.711 km E of Howell, UtahThu, Apr 16, 7:15 AM MDT · 14404 days ago · 3 km deep · 2 km away
7. 2.711 km S of Snowville, UtahSat, Apr 18, 6:19 PM MDT · 14402 days ago · 10 km deep · 31 km away
8. 1.615 km S of Snowville, UtahSat, Apr 18, 8:17 PM MDT · 14402 days ago · 11 km deep · 31 km away
9. 1.912 km SSE of Snowville, UtahThu, Apr 23, 9:37 PM MDT · 14397 days ago · 5 km deep · 29 km away
10. 3.212 km SSE of Snowville, UtahThu, Apr 23, 9:55 PM MDT · 14397 days ago · 5 km deep · 29 km away
11. 1.611 km SSE of Snowville, UtahFri, Apr 24, 6:16 AM MDT · 14396 days ago · 1 km deep · 28 km away
12. 2.312 km SSE of Snowville, UtahFri, Apr 24, 6:17 AM MDT · 14396 days ago · 4 km deep · 27 km away
13. 3.112 km SSE of Snowville, UtahFri, Apr 24, 1:32 PM MDT · 14396 days ago · 5 km deep · 28 km away
14. 2.713 km W of Portage, UtahSat, Apr 25, 2:28 AM MDT · 14395 days ago · 7 km deep · 17 km away
15. 2.412 km SSE of Snowville, UtahSun, Apr 26, 7:43 AM MDT · 14394 days ago · 5 km deep · 28 km away
16. 2.613 km SSE of Snowville, UtahSun, Apr 26, 10:30 PM MDT · 14394 days ago · 6 km deep · 28 km away
17. 1.812 km SSE of Snowville, UtahMon, May 4, 11:53 PM MDT · 14385 days ago · 1 km deep · 27 km away
18. 1.810 km ENE of Howell, UtahTue, May 5, 4:52 PM MDT · 14385 days ago · 4 km deep · 0 km away
19. 1.710 km ENE of Howell, UtahSun, May 10, 9:03 AM MDT · 14380 days ago · 5 km deep · 2 km away
20. 1.611 km ENE of Howell, UtahMon, May 11, 4:50 AM MDT · 14379 days ago · 4 km deep · 3 km away
21. 1.88 km ENE of Avon, UtahFri, May 15, 1:32 PM MDT · 14375 days ago · 5 km deep · 58 km away
22. 2.29 km ENE of Howell, UtahMon, May 25, 11:08 AM MDT · 14365 days ago · 6 km deep · 1 km away

Before

1. 2.011 km E of Howell, UtahWed, Apr 1, 8:36 AM MST · 14419 days ago · 1 km deep · 3 km away
2. 2.010 km ENE of Howell, UtahSun, Mar 29, 10:59 AM MST · 14422 days ago · 4 km deep · 2 km away
3. 1.68 km NW of Garden City, UtahMon, Mar 23, 11:09 PM MST · 14427 days ago · -2 km deep · 73 km away
4. 2.27 km NW of Garden City, UtahMon, Mar 23, 9:50 PM MST · 14428 days ago · -2 km deep · 73 km away
5. 2.28 km NW of Garden City, UtahMon, Mar 23, 5:32 PM MST · 14428 days ago · -3 km deep · 74 km away
6. 2.48 km SSW of Snowville, UtahSat, Mar 21, 8:00 PM MST · 14430 days ago · 6 km deep · 35 km away
7. 2.19 km S of Snowville, UtahSat, Mar 21, 7:48 PM MST · 14430 days ago · 0 km deep · 32 km away
8. 3.19 km S of Snowville, UtahSat, Mar 21, 7:41 PM MST · 14430 days ago · 4 km deep · 32 km away
9. 1.617 km ENE of Snowville, UtahSat, Mar 21, 5:51 AM MST · 14430 days ago · 2 km deep · 28 km away
10. 2.59 km S of Snowville, UtahFri, Mar 20, 6:19 PM MST · 14431 days ago · 5 km deep · 33 km away
11. 1.88 km E of Huntsville, UtahFri, Mar 20, 3:24 PM MST · 14431 days ago · 7 km deep · 83 km away
12. 1.98 km E of Huntsville, UtahFri, Mar 20, 3:22 PM MST · 14431 days ago · 10 km deep · 83 km away
13. 2.110 km ENE of Howell, UtahTue, Mar 17, 8:07 PM MST · 14434 days ago · 2 km deep · 1 km away
14. 3.010 km ENE of Howell, UtahTue, Mar 17, 8:07 AM MST · 14434 days ago · 2 km deep · 2 km away
15. 1.910 km ENE of Howell, UtahTue, Mar 17, 12:05 AM MST · 14434 days ago · 1 km deep · 0 km away
16. 1.910 km ENE of Howell, UtahMon, Mar 16, 11:37 PM MST · 14434 days ago · 4 km deep · 1 km away
17. 2.110 km S of Snowville, UtahFri, Mar 13, 6:02 AM MST · 14438 days ago · 7 km deep · 34 km away
18. 1.89 km S of Snowville, UtahThu, Mar 12, 7:54 PM MST · 14439 days ago · 5 km deep · 33 km away
19. 2.09 km S of Snowville, UtahThu, Mar 12, 6:34 PM MST · 14439 days ago · 7 km deep · 33 km away
20. 3.1UtahTue, Mar 10, 12:28 AM MST · 14441 days ago · 4 km deep · 34 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50032220 (also filed as usp00033u8). Read Tue, Sep 22, 2026, 4:38 PM UTC.