M1.7 earthquake 22 km ESE of Ephraim, Utah

Magnitude

1.7 (md), micro

Local time

Fri, Jan 28, 1983, 6:37 PM MST

UTC

1983-01-29 01:37:42 UTC

Depth

18.4 km (11.4 mi), shallow

Epicenter

39.248° N, 111.362° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.8 km horizontally, 3.9 km in depth

Depth from

From location

Station coverage gap

134°

Stations used

6

• Ephraim, UtahPopulation 6,857. Forecast23 kmESE
• Santaquin, UtahPopulation 10,572. Forecast89 kmSSE
• Provo, UtahPopulation 115,162. Forecast112 kmSSE
• Phoenix, ArizonaPopulation 1,650,070. Forecast648 kmN

After

1. 1.710 km NW of Orangeville, UtahSun, Jan 30, 5:58 AM MST · 15941 days ago · -2 km deep · 18 km away
2. 1.810 km NE of Leamington, UtahTue, Feb 1, 1:59 PM MST · 15939 days ago · 9 km deep · 81 km away
3. 1.820 km E of Kenilworth, UtahThu, Feb 3, 6:18 PM MST · 15936 days ago · 0 km deep · 86 km away
4. 1.911 km WNW of Huntington, UtahThu, Feb 3, 8:55 PM MST · 15936 days ago · 6 km deep · 25 km away
5. 1.610 km NW of Orangeville, UtahFri, Feb 4, 2:18 AM MST · 15936 days ago · 2 km deep · 19 km away
6. 1.723 km SE of Ephraim, UtahFri, Feb 4, 11:23 PM MST · 15935 days ago · 14 km deep · 1 km away
7. 2.512 km NNW of Orangeville, UtahSat, Feb 5, 1:34 AM MST · 15935 days ago · 11 km deep · 23 km away
8. 2.28 km N of Orangeville, UtahSat, Feb 5, 3:58 PM MST · 15934 days ago · 13 km deep · 26 km away
9. 2.012 km WNW of Huntington, UtahSat, Feb 5, 4:01 PM MST · 15934 days ago · 4 km deep · 25 km away
10. 2.016 km WNW of Emery, UtahSat, Feb 5, 6:41 PM MST · 15934 days ago · 5 km deep · 28 km away
11. 1.89 km NNW of Orangeville, UtahSat, Feb 5, 10:15 PM MST · 15934 days ago · -1 km deep · 25 km away
12. 1.89 km W of Huntington, UtahSun, Feb 6, 12:38 PM MST · 15934 days ago · 10 km deep · 26 km away
13. 2.311 km NW of Orangeville, UtahWed, Feb 9, 2:04 PM MST · 15931 days ago · 6 km deep · 20 km away
14. 2.112 km NW of Orangeville, UtahThu, Feb 10, 2:51 AM MST · 15930 days ago · 6 km deep · 19 km away
15. 2.19 km NNW of Orangeville, UtahFri, Feb 11, 12:36 PM MST · 15929 days ago · 12 km deep · 25 km away
16. 1.612 km NNW of Orangeville, UtahSat, Feb 12, 5:14 AM MST · 15928 days ago · 14 km deep · 22 km away
17. 2.513 km NW of Orangeville, UtahSat, Feb 12, 5:57 AM MST · 15928 days ago · 3 km deep · 20 km away
18. 1.910 km NNW of Orangeville, UtahSun, Feb 13, 2:37 PM MST · 15927 days ago · 11 km deep · 25 km away
19. 2.111 km WNW of Huntington, UtahThu, Feb 17, 2:44 AM MST · 15923 days ago · 11 km deep · 25 km away
20. 1.912 km NW of Orangeville, UtahThu, Feb 17, 9:39 AM MST · 15923 days ago · 3 km deep · 20 km away
21. 1.811 km W of Huntington, UtahThu, Feb 17, 11:06 PM MST · 15922 days ago · 4 km deep · 24 km away
22. 1.77 km NNW of Helper, UtahSat, Feb 19, 6:20 PM MST · 15920 days ago · -1 km deep · 69 km away
23. 1.810 km NNW of Orangeville, UtahSun, Feb 20, 6:30 PM MST · 15919 days ago · 2 km deep · 23 km away
24. 1.84 km ENE of Redmond, UtahTue, Feb 22, 6:03 PM MST · 15917 days ago · 10 km deep · 46 km away
25. 2.111 km NNW of Orangeville, UtahWed, Feb 23, 6:54 PM MST · 15916 days ago · 5 km deep · 22 km away
26. 2.320 km E of Kenilworth, UtahThu, Feb 24, 6:53 AM MST · 15916 days ago · 3 km deep · 86 km away
27. 1.96 km NE of Kenilworth, UtahSun, Feb 27, 9:04 PM MST · 15912 days ago · 3 km deep · 75 km away
28. 1.84 km NW of Huntington, UtahFri, Mar 4, 12:03 AM MST · 15908 days ago · 6 km deep · 34 km away
29. 1.74 km SW of Hiawatha, UtahSat, Mar 5, 5:28 PM MST · 15906 days ago · 6 km deep · 35 km away
30. 1.818 km NNE of Fremont, UtahWed, Mar 9, 4:51 PM MST · 15902 days ago · 6 km deep · 73 km away
31. 1.612 km NNW of Orangeville, UtahSat, Mar 12, 3:51 PM MST · 15899 days ago · 4 km deep · 22 km away
32. 1.713 km W of Huntington, UtahThu, Mar 17, 12:32 PM MST · 15895 days ago · 14 km deep · 23 km away
33. 1.911 km W of Huntington, UtahThu, Mar 17, 9:38 PM MST · 15894 days ago · 3 km deep · 25 km away
34. 1.911 km NNW of Orangeville, UtahSat, Mar 19, 1:15 PM MST · 15893 days ago · 7 km deep · 23 km away
35. 3.35 km NE of Sunnyside, UtahTue, Mar 22, 4:12 AM MST · 15890 days ago · 2 km deep · 96 km away
36. 1.713 km NNE of Koosharem, UtahWed, Mar 23, 7:09 PM MST · 15888 days ago · 8 km deep · 81 km away
37. 1.712 km WNW of Huntington, UtahWed, Mar 23, 10:04 PM MST · 15888 days ago · 11 km deep · 25 km away
38. 2.220 km SE of Manti, UtahSun, Mar 27, 1:02 AM MST · 15885 days ago · 4 km deep · 15 km away

Before

1. 1.811 km SE of Orangeville, UTThu, Jan 27, 8:17 PM MST · 15943 days ago · 4 km deep · 21 km away
2. 1.86 km NNW of Orangeville, UtahThu, Jan 27, 12:10 PM MST · 15944 days ago · 12 km deep · 25 km away
3. 1.711 km NW of Orangeville, UtahWed, Jan 26, 8:05 PM MST · 15944 days ago · 4 km deep · 20 km away
4. 1.711 km W of Huntington, UtahMon, Jan 24, 3:18 PM MST · 15947 days ago · 14 km deep · 24 km away
5. 1.55 km WSW of Fountain Green, UtahSat, Jan 22, 2:03 PM MST · 15949 days ago · 10 km deep · 50 km away
6. 2.92 km SE of Mount Nebo, UtahSat, Jan 22, 4:44 AM MST · 15949 days ago · 4 km deep · 91 km away
7. 1.713 km NNW of Orangeville, UtahFri, Jan 21, 9:15 AM MST · 15950 days ago · 7 km deep · 21 km away
8. 1.910 km NNW of Orangeville, UtahFri, Jan 21, 8:25 AM MST · 15950 days ago · 3 km deep · 24 km away
9. 2.113 km WNW of Huntington, UtahFri, Jan 21, 3:00 AM MST · 15950 days ago · 2 km deep · 24 km away
10. 1.511 km W of Huntington, UtahThu, Jan 20, 8:28 PM MST · 15950 days ago · 5 km deep · 24 km away
11. 1.613 km NW of Orangeville, UtahThu, Jan 20, 6:34 PM MST · 15950 days ago · 6 km deep · 20 km away
12. 2.012 km NW of Richfield, UtahThu, Jan 20, 6:13 AM MST · 15951 days ago · 7 km deep · 82 km away
13. 1.611 km NW of Orangeville, UtahWed, Jan 19, 5:00 AM MST · 15952 days ago · 5 km deep · 21 km away
14. 1.810 km NNW of Orangeville, UtahWed, Jan 19, 4:35 AM MST · 15952 days ago · 3 km deep · 23 km away
15. 1.610 km NNW of Orangeville, UtahWed, Jan 19, 3:40 AM MST · 15952 days ago · 17 km deep · 23 km away
16. 2.410 km W of Huntington, UtahTue, Jan 18, 5:42 AM MST · 15953 days ago · 6 km deep · 25 km away
17. 1.511 km NNW of Orangeville, UtahFri, Jan 14, 11:49 PM MST · 15956 days ago · 8 km deep · 23 km away
18. 1.98 km NNW of Orangeville, UtahFri, Jan 14, 7:56 AM MST · 15957 days ago · 3 km deep · 25 km away
19. 1.62 km E of Annabella, UtahFri, Jan 14, 6:50 AM MST · 15957 days ago · 10 km deep · 83 km away
20. 1.89 km NW of Orangeville, UtahThu, Jan 13, 4:49 PM MST · 15957 days ago · 11 km deep · 19 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50008385. Read Tue, Sep 22, 2026, 10:00 AM UTC.