M1.9 earthquake 13 km WSW of Eureka, Utah

Magnitude

1.9 (Md, duration), micro

Magnitude from

University of Utah Seismograph Stations

Local time

Sun, Feb 23, 1986, 4:05 AM MST

UTC

1986-02-23 11:05:31 UTC

Depth

5.4 km (3.3 mi), shallow

Epicenter

39.923° N, 112.269° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 2.2 km in depth

Depth from

From location

Station coverage gap

81°

Stations used

21

• Eureka, UtahPopulation 666. Forecast13 kmWSW
• Santaquin, UtahPopulation 10,572. Forecast42 kmW
• Provo, UtahPopulation 115,162. Forecast62 kmWSW
• Phoenix, ArizonaPopulation 1,650,070. Forecast720 kmN

After

1. 1.96 km E of Leamington, UtahMon, Feb 24, 4:16 PM MST · 14829 days ago · 2 km deep · 42 km away
2. 1.88 km NNW of Fayette, UtahTue, Mar 11, 1:44 PM MST · 14815 days ago · -2 km deep · 77 km away
3. 1.68 km WSW of Fayette, UtahTue, Mar 11, 5:47 PM MST · 14814 days ago · -2 km deep · 86 km away
4. 1.718 km E of Leamington, UtahThu, Mar 13, 4:47 AM MST · 14813 days ago · 2 km deep · 47 km away
5. 1.97 km NNW of Fayette, UtahFri, Mar 14, 8:09 PM MST · 14811 days ago · 3 km deep · 78 km away
6. 1.511 km WSW of Independence, UtahSun, Mar 16, 3:11 AM MST · 14810 days ago · 9 km deep · 85 km away
7. 1.73 km NW of Genola, UtahMon, Mar 17, 3:13 PM MST · 14808 days ago · 1 km deep · 35 km away
8. 1.78 km NNW of Fayette, UtahMon, Mar 17, 8:06 PM MST · 14808 days ago · 5 km deep · 77 km away
9. 1.58 km NNW of Fayette, UtahMon, Mar 17, 9:50 PM MST · 14808 days ago · 1 km deep · 77 km away
10. 1.87 km N of Fayette, UtahTue, Mar 18, 1:23 PM MST · 14808 days ago · 1 km deep · 78 km away
11. 1.87 km E of Leamington, UtahWed, Mar 19, 3:59 PM MST · 14806 days ago · 1 km deep · 43 km away
12. 3.29 km ESE of Scipio, UtahMon, Mar 24, 3:33 PM MST · 14801 days ago · 2 km deep · 81 km away
13. 4.39 km E of Scipio, UtahMon, Mar 24, 3:40 PM MST · 14801 days ago · 2 km deep · 80 km away
14. 1.69 km ESE of Scipio, UtahMon, Mar 24, 4:34 PM MST · 14801 days ago · 7 km deep · 83 km away
15. 2.39 km ESE of Scipio, UtahMon, Mar 24, 4:52 PM MST · 14801 days ago · 0 km deep · 82 km away
16. 3.39 km E of Scipio, UtahMon, Mar 24, 7:49 PM MST · 14801 days ago · 1 km deep · 80 km away
17. 3.89 km ESE of Scipio, UtahMon, Mar 24, 7:53 PM MST · 14801 days ago · 5 km deep · 82 km away
18. 1.610 km ESE of Scipio, UtahMon, Mar 24, 8:00 PM MST · 14801 days ago · 7 km deep · 83 km away
19. 2.010 km ESE of Scipio, UtahMon, Mar 24, 8:50 PM MST · 14801 days ago · 6 km deep · 82 km away
20. 1.610 km ESE of Scipio, UtahMon, Mar 24, 9:32 PM MST · 14801 days ago · 2 km deep · 81 km away
21. 1.79 km ESE of Scipio, UtahTue, Mar 25, 11:55 AM MST · 14801 days ago · 0 km deep · 82 km away
22. 2.38 km NNW of Fayette, UtahWed, Mar 26, 12:32 PM MST · 14800 days ago · 2 km deep · 77 km away
23. 2.06 km ESE of Scipio, UtahThu, Mar 27, 3:21 PM MST · 14798 days ago · -3 km deep · 81 km away
24. 1.615 km SSE of Spring City, UtahMon, Apr 7, 12:23 AM MST · 14788 days ago · 24 km deep · 96 km away
25. 2.46 km NW of Fayette, UtahMon, Apr 7, 9:01 AM MST · 14788 days ago · 6 km deep · 79 km away
26. 1.624 km ESE of Woodland Hills, UtahTue, Apr 8, 7:59 AM MST · 14787 days ago · 6 km deep · 74 km away
27. 1.72 km ENE of Fountain Green, UtahFri, Apr 18, 4:46 PM MST · 14776 days ago · 2 km deep · 65 km away

Before

1. 2.017 km NNW of Fayette, UtahWed, Feb 12, 2:22 PM MST · 14842 days ago · 17 km deep · 67 km away
2. 1.525 km ESE of Mapleton, UtahSat, Feb 1, 4:19 PM MST · 14852 days ago · 4 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50028500. Read Fri, Oct 2, 2026, 9:04 AM UTC.