M3.3 earthquake 9 km SSE of Mayfield, Utah

Magnitude

3.3 (md), minor

Local time

Fri, Jan 16, 1987, 4:27 PM MST

UTC

1987-01-16 23:27:58 UTC

Depth

18.8 km (11.7 mi), shallow

Epicenter

39.041° N, 111.651° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

81°

Stations used

19

• Mayfield, UtahPopulation 521. Forecast10 kmSSE
• Santaquin, UtahPopulation 10,572. Forecast105 kmS
• Provo, UtahPopulation 115,162. Forecast133 kmS
• Phoenix, ArizonaPopulation 1,650,070. Forecast623 kmN

After

1. 2.712 km WNW of Huntington, UtahSat, Jan 17, 7:01 AM MST · 14493 days ago · 2 km deep · 58 km away
2. 2.714 km WNW of Huntington, UtahSun, Jan 18, 8:04 PM MST · 14491 days ago · 3 km deep · 57 km away
3. 2.911 km W of Huntington, UtahWed, Jan 21, 3:06 AM MST · 14489 days ago · 4 km deep · 57 km away
4. 1.712 km SSW of Levan, UtahWed, Jan 21, 5:52 AM MST · 14489 days ago · 15 km deep · 51 km away
5. 2.313 km WNW of Huntington, UtahWed, Feb 4, 4:15 PM MST · 14475 days ago · 3 km deep · 58 km away
6. 3.113 km WNW of Huntington, UtahWed, Feb 4, 5:15 PM MST · 14474 days ago · 4 km deep · 58 km away
7. 2.7UtahThu, Feb 5, 4:17 AM MST · 14474 days ago · 3 km deep · 58 km away
8. 2.413 km WNW of Huntington, UtahSun, Feb 8, 3:41 AM MST · 14471 days ago · 4 km deep · 58 km away
9. 2.124 km SSW of Kanosh, UtahMon, Feb 9, 3:41 AM MST · 14470 days ago · 17 km deep · 92 km away
10. 3.014 km W of Huntington, UtahTue, Feb 10, 9:35 PM MST · 14468 days ago · 4 km deep · 57 km away
11. 2.515 km E of Oak City, UtahMon, Feb 23, 3:57 AM MST · 14456 days ago · 5 km deep · 58 km away
12. 2.813 km WNW of Huntington, UtahWed, Feb 25, 5:59 AM MST · 14454 days ago · 3 km deep · 58 km away
13. 2.52 km SSE of Manti, UtahWed, Mar 11, 6:11 AM MST · 14440 days ago · 7 km deep · 24 km away
14. 2.61 km S of Manti, UtahWed, Mar 11, 8:31 AM MST · 14440 days ago · 7 km deep · 24 km away
15. 2.613 km WNW of Huntington, UtahThu, Mar 12, 12:05 AM MST · 14439 days ago · 5 km deep · 58 km away
16. 2.912 km WNW of Emery, UtahTue, Mar 17, 11:11 AM MST · 14434 days ago · 3 km deep · 25 km away

Before

1. 1.7UtahFri, Jan 16, 1:33 PM MST · 14494 days ago · 2 km deep · 74 km away
2. 1.67 km S of Joseph, UtahFri, Jan 16, 1:28 PM MST · 14494 days ago · 3 km deep · 73 km away
3. 1.77 km S of Joseph, UtahWed, Jan 14, 11:52 AM MST · 14496 days ago · -1 km deep · 74 km away
4. 2.510 km NW of Helper, UtahTue, Jan 13, 3:46 AM MST · 14497 days ago · 4 km deep · 99 km away
5. 2.99 km NW of Helper, UtahThu, Jan 8, 7:59 AM MST · 14502 days ago · 5 km deep · 99 km away
6. 1.610 km ESE of Scipio, UtahWed, Jan 7, 7:07 PM MST · 14502 days ago · 3 km deep · 35 km away
7. 2.29 km ESE of Scipio, UtahWed, Jan 7, 6:51 PM MST · 14502 days ago · 0 km deep · 36 km away
8. 2.912 km NNW of Orangeville, UtahThu, Jan 1, 6:26 AM MST · 14509 days ago · 4 km deep · 57 km away
9. 2.121 km SW of Kanosh, UtahSun, Dec 28, 1:45 PM MST · 14513 days ago · 2 km deep · 92 km away
10. 2.618 km SW of Kanosh, UtahSun, Dec 28, 12:37 AM MST · 14513 days ago · 0 km deep · 89 km away
11. 2.519 km SW of Kanosh, UtahSun, Dec 28, 12:08 AM MST · 14513 days ago · 1 km deep · 90 km away
12. 2.414 km W of Huntington, UtahSun, Dec 21, 10:50 AM MST · 14520 days ago · 3 km deep · 57 km away
13. 2.78 km NW of Helper, UtahSat, Dec 20, 8:50 AM MST · 14521 days ago · 6 km deep · 100 km away
14. 2.021 km SW of Kanosh, UtahWed, Dec 17, 11:05 PM MST · 14523 days ago · 5 km deep · 92 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50031260. Read Tue, Sep 22, 2026, 11:16 AM UTC.