M1.5 earthquake 25 km ESE of Mapleton, Utah

Magnitude

1.5 (md), micro

Local time

Sat, Feb 1, 1986, 4:19 PM MST

UTC

1986-02-01 23:19:50 UTC

Depth

4.3 km (2.7 mi), shallow

Epicenter

40.030° N, 111.315° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 2.1 km horizontally, 12.4 km in depth

Depth from

From location

Station coverage gap

243°, poorly surrounded by stations

Stations used

9

• Mapleton, UtahPopulation 9,232. Forecast25 kmESE
• Springville, UtahPopulation 32,286. Forecast29 kmESE
• Provo, UtahPopulation 115,162. Forecast37 kmSE
• Phoenix, ArizonaPopulation 1,650,070. Forecast735 kmN

After

1. 2.215 km NW of Orangeville, UtahSat, Feb 8, 2:12 PM MST · 14836 days ago · 4 km deep · 78 km away
2. 1.615 km SSW of Henefer, UtahTue, Feb 11, 1:17 AM MST · 14833 days ago · 9 km deep · 99 km away
3. 2.415 km NW of Orangeville, UtahTue, Feb 11, 3:08 PM MST · 14833 days ago · 6 km deep · 79 km away
4. 2.816 km ENE of Kenilworth, UtahTue, Feb 11, 4:09 PM MST · 14833 days ago · 2 km deep · 67 km away
5. 2.017 km NNW of Fayette, UtahWed, Feb 12, 2:22 PM MST · 14832 days ago · 17 km deep · 90 km away
6. 3.217 km NNW of East Carbon City, UtahThu, Feb 13, 5:56 PM MST · 14831 days ago · 8 km deep · 80 km away
7. 1.913 km WSW of Eureka, UtahSun, Feb 23, 4:05 AM MST · 14821 days ago · 5 km deep · 82 km away
8. 1.96 km E of Leamington, UtahMon, Feb 24, 4:16 PM MST · 14820 days ago · 2 km deep · 93 km away
9. 1.88 km NNW of Fayette, UtahTue, Mar 11, 1:44 PM MST · 14805 days ago · -2 km deep · 94 km away
10. 3.011 km W of Huntington, UtahTue, Mar 11, 11:17 PM MST · 14805 days ago · 4 km deep · 78 km away
11. 1.718 km E of Leamington, UtahThu, Mar 13, 4:47 AM MST · 14803 days ago · 2 km deep · 86 km away
12. 1.97 km NNW of Fayette, UtahFri, Mar 14, 8:09 PM MST · 14802 days ago · 3 km deep · 95 km away
13. 1.511 km WSW of Independence, UtahSun, Mar 16, 3:11 AM MST · 14800 days ago · 9 km deep · 28 km away
14. 1.73 km NW of Genola, UtahMon, Mar 17, 3:13 PM MST · 14799 days ago · 1 km deep · 48 km away
15. 1.78 km NNW of Fayette, UtahMon, Mar 17, 8:06 PM MST · 14799 days ago · 5 km deep · 96 km away
16. 1.58 km NNW of Fayette, UtahMon, Mar 17, 9:50 PM MST · 14799 days ago · 1 km deep · 96 km away
17. 1.87 km N of Fayette, UtahTue, Mar 18, 1:23 PM MST · 14798 days ago · 1 km deep · 94 km away
18. 1.87 km E of Leamington, UtahWed, Mar 19, 3:59 PM MST · 14797 days ago · 1 km deep · 93 km away
19. 2.38 km NNW of Fayette, UtahWed, Mar 26, 12:32 PM MST · 14790 days ago · 2 km deep · 95 km away
20. 2.29 km W of Huntington, UtahTue, Apr 1, 11:41 PM MST · 14784 days ago · 4 km deep · 81 km away

Before

1. 2.59 km ENE of Kenilworth, UtahFri, Jan 24, 4:54 AM MST · 14851 days ago · 7 km deep · 63 km away
2. 1.79 km S of Woodland Hills, UtahWed, Jan 22, 10:24 PM MST · 14853 days ago · 8 km deep · 30 km away
3. 2.719 km E of Kenilworth, UtahTue, Jan 21, 10:25 PM MST · 14854 days ago · 6 km deep · 71 km away
4. 1.86 km ENE of Leamington, UtahTue, Jan 21, 3:14 PM MST · 14854 days ago · 2 km deep · 93 km away
5. 1.711 km W of Huntington, UtahMon, Jan 20, 3:40 PM MST · 14855 days ago · 5 km deep · 80 km away
6. 1.66 km ENE of Leamington, UtahFri, Jan 10, 3:03 PM MST · 14865 days ago · 2 km deep · 93 km away
7. 2.614 km ENE of Kenilworth, UtahFri, Jan 10, 9:12 AM MST · 14865 days ago · -3 km deep · 67 km away
8. 1.513 km SSW of Levan, UtahFri, Jan 3, 8:56 PM MST · 14872 days ago · 10 km deep · 83 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50028245. Read Tue, Sep 22, 2026, 6:14 PM UTC.