M1.7 earthquake 13 km NNE of Koosharem, Utah

Magnitude

1.7 (md), micro

Local time

Wed, Mar 23, 1983, 7:09 PM MST

UTC

1983-03-24 02:09:47 UTC

Depth

8.0 km (5.0 mi), shallow

Epicenter

38.625° N, 111.841° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 1.7 km in depth

Depth from

From location

Station coverage gap

107°

Stations used

10

• Annabella, UtahPopulation 800. Forecast21 kmESE
• Cedar City, UtahPopulation 30,184. Forecast150 kmNE
• Provo, UtahPopulation 115,162. Forecast180 kmS
• Phoenix, ArizonaPopulation 1,650,070. Forecast576 kmN

After

1. 2.220 km SE of Manti, UtahSun, Mar 27, 1:02 AM MST · 15886 days ago · 4 km deep · 66 km away
2. 2.412 km NE of Antimony, UtahWed, Mar 30, 5:46 PM MST · 15882 days ago · 13 km deep · 47 km away
3. 1.811 km NW of Orangeville, UtahTue, Apr 5, 6:41 PM MST · 15876 days ago · 10 km deep · 96 km away
4. 2.012 km NW of Orangeville, UtahWed, Apr 6, 3:27 PM MST · 15875 days ago · 3 km deep · 98 km away
5. 2.49 km NW of Orangeville, UtahSun, Apr 17, 3:30 PM MST · 15864 days ago · -1 km deep · 94 km away
6. 2.18 km NW of Junction, UtahMon, Apr 25, 8:38 PM MDT · 15856 days ago · 11 km deep · 55 km away
7. 1.813 km NW of Orangeville, UtahTue, Apr 26, 3:33 AM MDT · 15855 days ago · 9 km deep · 99 km away
8. 2.513 km NW of Orangeville, UtahFri, Apr 29, 12:04 AM MDT · 15853 days ago · -1 km deep · 99 km away
9. 1.916 km NNE of Scipio, UtahFri, Apr 29, 3:52 PM MDT · 15852 days ago · 3 km deep · 85 km away
10. 1.720 km NW of Orangeville, UtahTue, May 3, 7:57 PM MDT · 15848 days ago · 16 km deep · 96 km away
11. 2.09 km NW of Orangeville, UtahTue, May 3, 10:01 PM MDT · 15848 days ago · 13 km deep · 97 km away
12. 1.710 km NNW of Orangeville, UtahThu, May 5, 5:48 PM MDT · 15846 days ago · 12 km deep · 99 km away
13. 2.212 km NW of Orangeville, UtahThu, May 5, 7:28 PM MDT · 15846 days ago · 14 km deep · 97 km away
14. 2.19 km NW of Orangeville, UtahSat, May 7, 6:19 PM MDT · 15844 days ago · 3 km deep · 94 km away
15. 2.113 km NW of Orangeville, UtahSat, May 7, 7:04 PM MDT · 15844 days ago · 5 km deep · 98 km away
16. 2.414 km NW of Orangeville, UtahMon, May 9, 10:25 PM MDT · 15842 days ago · 3 km deep · 99 km away
17. 2.110 km NNW of Orangeville, UtahTue, May 10, 1:34 AM MDT · 15842 days ago · 10 km deep · 100 km away
18. 2.018 km ESE of Ephraim, UtahTue, May 10, 4:49 PM MDT · 15841 days ago · 23 km deep · 87 km away
19. 2.113 km NNW of Orangeville, UtahTue, May 10, 9:58 PM MDT · 15841 days ago · 6 km deep · 99 km away
20. 2.113 km NW of Orangeville, UtahSat, May 14, 9:55 AM MDT · 15837 days ago · 6 km deep · 98 km away
21. 1.811 km NW of Orangeville, UtahThu, May 19, 6:20 PM MDT · 15832 days ago · 12 km deep · 96 km away
22. 2.014 km NNW of Orangeville, UtahSat, May 21, 12:09 AM MDT · 15831 days ago · 2 km deep · 99 km away
23. 2.212 km NW of Orangeville, UtahSun, May 22, 3:46 PM MDT · 15829 days ago · 3 km deep · 97 km away

Before

1. 1.911 km NNW of Orangeville, UtahSat, Mar 19, 1:15 PM MST · 15893 days ago · 7 km deep · 99 km away
2. 1.714 km SSW of Antimony, UtahWed, Mar 16, 8:23 AM MST · 15896 days ago · 6 km deep · 72 km away
3. 1.612 km NNW of Orangeville, UtahSat, Mar 12, 3:51 PM MST · 15900 days ago · 4 km deep · 100 km away
4. 1.818 km NNE of Fremont, UtahWed, Mar 9, 4:51 PM MST · 15903 days ago · 6 km deep · 28 km away
5. 2.015 km NNW of Panguitch, UtahSun, Mar 6, 2:15 PM MST · 15906 days ago · 11 km deep · 93 km away
6. 2.111 km NNW of Orangeville, UtahWed, Feb 23, 6:54 PM MST · 15917 days ago · 5 km deep · 98 km away
7. 1.84 km ENE of Redmond, UtahTue, Feb 22, 6:03 PM MST · 15918 days ago · 10 km deep · 45 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50008960. Read Tue, Sep 22, 2026, 8:25 PM UTC.