M2.3 earthquake 8 km SSE of Alton, Utah

Magnitude

2.3 (Md, duration), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Tue, Feb 17, 1981, 6:25 AM MST

UTC

1981-02-17 13:25:19 UTC

Depth

19.9 km (12.4 mi), shallow

Epicenter

37.365° N, 112.461° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.5 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

252°, poorly surrounded by stations

Stations used

6

• Orderville, UtahPopulation 559. Forecast19 kmENE
• Cedar City, UtahPopulation 30,184. Forecast63 kmESE
• Sunrise Manor, NevadaPopulation 189,372. Forecast266 kmENE
• Phoenix, ArizonaPopulation 1,650,070. Forecast437 kmN

After

1. 2.310 km NW of Kanarraville, UtahFri, Feb 27, 8:57 AM MST · 16652 days ago · 7 km deep · 76 km away
2. 2.310 km WNW of Panguitch, UtahSun, Mar 1, 5:29 PM MST · 16649 days ago · -2 km deep · 54 km away
3. 2.15 km SE of Panguitch, UtahWed, Mar 11, 9:22 AM MST · 16640 days ago · 6 km deep · 47 km away
4. 1.711 km NNW of Panguitch, UtahFri, Mar 13, 8:41 PM MST · 16637 days ago · 6 km deep · 61 km away
5. 1.85 km SSE of Panguitch, UtahSat, Mar 14, 1:58 AM MST · 16637 days ago · 6 km deep · 46 km away
6. 1.96 km SSE of Panguitch, UtahSat, Mar 14, 2:01 AM MST · 16637 days ago · 4 km deep · 45 km away
7. 2.25 km SSE of Panguitch, UtahSat, Mar 14, 11:24 AM MST · 16637 days ago · 4 km deep · 46 km away
8. 2.14 km E of Panguitch, UtahSat, Mar 14, 11:37 AM MST · 16637 days ago · 6 km deep · 51 km away
9. 1.85 km SSE of Panguitch, UtahSat, Mar 14, 4:14 PM MST · 16636 days ago · 1 km deep · 46 km away
10. 2.211 km NNW of Panguitch, UtahSun, Mar 15, 5:34 PM MST · 16635 days ago · 3 km deep · 61 km away
11. 2.012 km NNW of Panguitch, UtahSun, Mar 15, 10:44 PM MST · 16635 days ago · 4 km deep · 61 km away
12. 1.710 km NNW of Panguitch, UtahSun, Mar 15, 11:09 PM MST · 16635 days ago · 6 km deep · 61 km away
13. 1.912 km NNW of Panguitch, UtahTue, Mar 17, 11:36 PM MST · 16633 days ago · 6 km deep · 62 km away
14. 1.611 km NNW of Panguitch, UtahTue, Mar 17, 11:38 PM MST · 16633 days ago · 6 km deep · 61 km away
15. 1.511 km NNW of Panguitch, UtahWed, Mar 18, 7:11 AM MST · 16633 days ago · 6 km deep · 62 km away
16. 1.710 km NNW of Panguitch, UtahSun, Mar 29, 12:06 AM MST · 16622 days ago · 6 km deep · 60 km away
17. 4.29 km WNW of Kanarraville, UtahSat, Apr 4, 10:40 PM MST · 16615 days ago · 6 km deep · 76 km away
18. 2.310 km NW of Kanarraville, UtahSat, Apr 4, 10:45 PM MST · 16615 days ago · 0 km deep · 77 km away
19. 2.310 km WNW of Kanarraville, UtahSat, Apr 4, 11:40 PM MST · 16615 days ago · 6 km deep · 77 km away
20. 2.19 km WNW of Kanarraville, UtahSun, Apr 5, 3:52 AM MST · 16615 days ago · 0 km deep · 76 km away
21. 2.79 km WNW of Kanarraville, UtahMon, Apr 6, 1:38 PM MST · 16614 days ago · -3 km deep · 76 km away
22. 1.610 km WNW of Kanarraville, UtahTue, Apr 7, 2:11 PM MST · 16612 days ago · 8 km deep · 77 km away
23. 1.911 km WNW of Kanarraville, UtahWed, Apr 8, 4:25 PM MST · 16611 days ago · 8 km deep · 78 km away
24. 2.17 km W of Kanarraville, UtahFri, Apr 10, 6:43 AM MST · 16610 days ago · -3 km deep · 74 km away
25. 2.29 km WNW of Kanarraville, UtahFri, Apr 10, 6:45 AM MST · 16610 days ago · 4 km deep · 76 km away
26. 1.89 km WNW of Kanarraville, UtahFri, Apr 10, 6:52 AM MST · 16610 days ago · 0 km deep · 76 km away
27. 1.613 km W of Circleville, UtahFri, Apr 10, 11:26 PM MST · 16609 days ago · 6 km deep · 89 km away
28. 2.58 km WNW of Kanarraville, UtahSat, Apr 11, 12:37 AM MST · 16609 days ago · 5 km deep · 75 km away
29. 1.78 km WNW of Kanarraville, UtahSun, Apr 12, 7:59 PM MST · 16607 days ago · 1 km deep · 75 km away
30. 2.37 km WNW of Kanarraville, UtahSun, Apr 12, 9:16 PM MST · 16607 days ago · 0 km deep · 74 km away
31. 1.77 km W of Kanarraville, UtahSun, Apr 12, 10:24 PM MST · 16607 days ago · -3 km deep · 74 km away
32. 1.78 km WNW of Kanarraville, UtahTue, Apr 14, 6:30 AM MST · 16606 days ago · 1 km deep · 75 km away
33. 2.116 km NNW of Kanarraville, UtahTue, Apr 14, 11:46 PM MST · 16605 days ago · 10 km deep · 80 km away
34. 1.89 km WNW of Kanarraville, UtahSat, Apr 18, 4:19 AM MST · 16602 days ago · 0 km deep · 76 km away

Before

1. 2.18 km NNE of New Harmony, UtahThu, Feb 5, 7:35 AM MST · 16674 days ago · -3 km deep · 76 km away
2. 2.97 km NNE of New Harmony, UtahThu, Feb 5, 7:32 AM MST · 16674 days ago · 0 km deep · 75 km away
3. 2.38 km NNE of New Harmony, UtahTue, Feb 3, 8:42 PM MST · 16675 days ago · 0 km deep · 76 km away
4. 2.19 km WNW of Kanarraville, UtahSun, Feb 1, 8:51 PM MST · 16677 days ago · -1 km deep · 76 km away
5. 3.28 km W of Kanarraville, UtahSat, Jan 31, 7:21 PM MST · 16678 days ago · 2 km deep · 75 km away
6. 1.917 km WNW of Paragonah, UtahThu, Jan 22, 1:37 AM MST · 16688 days ago · 6 km deep · 80 km away
7. 1.89 km SE of Kanarraville, UtahTue, Jan 20, 11:53 PM MST · 16689 days ago · 2 km deep · 59 km away
8. 1.66 km S of Kanarraville, UtahTue, Jan 20, 7:18 PM MST · 16689 days ago · 8 km deep · 65 km away
9. 1.65 km E of Kanarraville, UtahTue, Jan 20, 4:53 AM MST · 16690 days ago · 9 km deep · 61 km away
10. 2.29 km SSE of Kanarraville, UtahMon, Jan 19, 6:23 PM MST · 16690 days ago · -2 km deep · 60 km away
11. 2.19 km SE of Kanarraville, UtahMon, Jan 19, 7:45 AM MST · 16691 days ago · 8 km deep · 59 km away
12. 1.910 km SE of Kanarraville, UtahMon, Jan 19, 4:10 AM MST · 16691 days ago · 8 km deep · 58 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50000410. Read Thu, Oct 1, 2026, 8:33 AM UTC.