M1.7 earthquake 8 km N of Howell, Utah

Magnitude

1.7 (md), micro

Local time

Thu, Apr 9, 1981, 4:52 AM MST

UTC

1981-04-09 11:52:53 UTC

Depth

8.0 km (5.0 mi), shallow

Epicenter

41.876° N, 112.457° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 1.2 km in depth

Depth from

From location

Station coverage gap

102°

Stations used

18

• Thatcher, UtahPopulation 789. Forecast24 kmNNW
• Smithfield, UtahPopulation 10,782. Forecast52 kmW
• Salt Lake City, UtahPopulation 215,548. Forecast133 kmNNW

After

1. 1.611 km SSE of Snowville, UtahFri, Apr 10, 3:10 PM MST · 16605 days ago · 0 km deep · 18 km away
2. 2.111 km SSE of Snowville, UtahFri, Apr 10, 10:09 PM MST · 16605 days ago · 0 km deep · 18 km away
3. 2.612 km S of Snowville, UtahFri, Apr 10, 10:19 PM MST · 16605 days ago · 6 km deep · 19 km away
4. 2.011 km SSE of Snowville, UtahSat, Apr 11, 1:03 AM MST · 16605 days ago · 3 km deep · 18 km away
5. 3.012 km SSE of Snowville, UtahSat, Apr 11, 1:08 AM MST · 16605 days ago · 4 km deep · 18 km away
6. 1.711 km S of Snowville, UtahSat, Apr 11, 1:31 AM MST · 16605 days ago · 0 km deep · 19 km away
7. 1.810 km S of Snowville, UtahSat, Apr 11, 5:10 PM MST · 16604 days ago · -1 km deep · 19 km away
8. 1.77 km N of Howell, UtahTue, Apr 14, 1:42 PM MST · 16601 days ago · 6 km deep · 1 km away
9. 2.015 km ENE of Snowville, UtahMon, Apr 20, 6:32 PM MST · 16595 days ago · 4 km deep · 19 km away
10. 1.813 km ESE of Millville, UtahMon, May 25, 9:11 PM MDT · 16560 days ago · 9 km deep · 70 km away
11. 3.11 km N of Grace, IdahoTue, May 26, 11:46 PM MDT · 16559 days ago · 5 km deep · 100 km away

Before

1. 2.211 km SSE of Snowville, UtahWed, Apr 8, 3:11 AM MST · 16608 days ago · 2 km deep · 19 km away
2. 2.411 km S of Snowville, UtahTue, Apr 7, 9:22 AM MST · 16609 days ago · 4 km deep · 19 km away
3. 1.59 km S of Snowville, UtahTue, Apr 7, 9:03 AM MST · 16609 days ago · 1 km deep · 19 km away
4. 1.610 km SSE of Snowville, UtahTue, Apr 7, 7:30 AM MST · 16609 days ago · 1 km deep · 19 km away
5. 2.211 km SSE of Snowville, UtahTue, Apr 7, 7:18 AM MST · 16609 days ago · 4 km deep · 18 km away
6. 1.79 km S of Snowville, UtahMon, Apr 6, 10:35 AM MST · 16610 days ago · 9 km deep · 22 km away
7. 2.010 km S of Snowville, UtahMon, Apr 6, 3:48 AM MST · 16610 days ago · 4 km deep · 19 km away
8. 1.911 km SSE of Snowville, UtahSat, Apr 4, 7:20 PM MST · 16611 days ago · 5 km deep · 19 km away
9. 2.08 km N of Howell, UtahSat, Apr 4, 4:44 PM MST · 16611 days ago · 8 km deep · 0 km away
10. 1.68 km N of Howell, UtahFri, Apr 3, 9:39 AM MST · 16613 days ago · 6 km deep · 1 km away
11. 2.07 km N of Howell, UtahFri, Apr 3, 5:21 AM MST · 16613 days ago · 5 km deep · 1 km away
12. 2.57 km N of Howell, UtahThu, Apr 2, 5:05 PM MST · 16613 days ago · 6 km deep · 1 km away
13. 1.97 km N of Howell, UtahThu, Apr 2, 4:39 PM MST · 16613 days ago · 6 km deep · 1 km away
14. 1.68 km N of Howell, UtahThu, Apr 2, 3:53 PM MST · 16613 days ago · 7 km deep · 0 km away
15. 1.69 km S of Snowville, UtahWed, Apr 1, 9:30 PM MST · 16614 days ago · 0 km deep · 20 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50001060. Read Sun, Sep 27, 2026, 6:55 AM UTC.