M1.8 earthquake 10 km ENE of Avon, Utah

Magnitude

1.8 (md), micro

Local time

Wed, Dec 2, 1987, 7:17 AM MST

UTC

1987-12-02 14:17:02 UTC

Depth

3.9 km (2.4 mi), shallow

Epicenter

41.584° N, 111.708° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.6 km in depth

Depth from

From location

Station coverage gap

95°

Stations used

14

• Paradise, UtahPopulation 943. Forecast11 kmE
• Logan, UtahPopulation 50,371. Forecast20 kmSSE
• Salt Lake City, UtahPopulation 215,548. Forecast93 kmN

After

1. 2.810 km ENE of Howell, UtahFri, Dec 11, 5:43 AM MST · 14166 days ago · 2 km deep · 59 km away
2. 1.69 km NNE of Howell, UtahMon, Dec 14, 5:43 PM MST · 14162 days ago · 11 km deep · 66 km away
3. 2.613 km ESE of Snowville, UtahSun, Dec 20, 6:15 PM MST · 14156 days ago · 7 km deep · 80 km away
4. 1.711 km ENE of Howell, UtahWed, Dec 30, 12:32 PM MST · 14146 days ago · 0 km deep · 59 km away
5. 2.118 km WSW of Georgetown, IdahoSun, Jan 3, 6:43 AM MST · 14143 days ago · 2 km deep · 95 km away
6. 1.712 km NE of Howell, UtahSat, Jan 9, 8:23 PM MST · 14136 days ago · 8 km deep · 60 km away
7. 1.649 km WNW of Hooper, UtahWed, Jan 13, 6:21 PM MST · 14132 days ago · 5 km deep · 91 km away
8. 2.09 km NNW of Garden City, UtahWed, Jan 20, 12:49 PM MST · 14125 days ago · -2 km deep · 53 km away
9. 2.010 km ENE of Howell, UtahWed, Jan 27, 2:23 AM MST · 14119 days ago · 0 km deep · 58 km away
10. 1.910 km ENE of Howell, UtahWed, Jan 27, 3:48 PM MST · 14118 days ago · 5 km deep · 58 km away
11. 1.811 km ENE of Howell, UtahSat, Jan 30, 8:26 PM MST · 14115 days ago · 3 km deep · 59 km away

Before

1. 2.218 km ENE of Snowville, UtahWed, Dec 2, 4:33 AM MST · 14175 days ago · 1 km deep · 84 km away
2. 1.69 km ENE of Howell, UtahMon, Nov 30, 6:07 PM MST · 14176 days ago · 4 km deep · 58 km away
3. 2.39 km WSW of Garden City, UtahSun, Nov 29, 9:12 AM MST · 14177 days ago · -2 km deep · 40 km away
4. 1.612 km SE of Snowville, UtahSun, Nov 29, 8:58 AM MST · 14177 days ago · 4 km deep · 81 km away
5. 1.613 km SE of Snowville, UtahSun, Nov 29, 12:06 AM MST · 14178 days ago · 7 km deep · 80 km away
6. 2.59 km W of Garden, UtahFri, Nov 27, 1:59 PM MST · 14179 days ago · -3 km deep · 39 km away
7. 1.619 km SW of Thatcher, UtahTue, Nov 24, 8:13 PM MST · 14182 days ago · 0 km deep · 62 km away
8. 1.622 km W of Randolph, UtahWed, Nov 18, 7:07 PM MST · 14188 days ago · 2 km deep · 22 km away
9. 2.25 km W of Snyderville, UtahMon, Nov 16, 8:05 PM MST · 14190 days ago · 11 km deep · 100 km away
10. 2.023 km N of Henefer, UtahSat, Nov 14, 9:58 AM MST · 14192 days ago · 6 km deep · 44 km away
11. 1.713 km ESE of Snowville, UtahSat, Nov 14, 3:43 AM MST · 14193 days ago · 6 km deep · 79 km away
12. 1.63 km S of Deweyville, UtahWed, Nov 11, 2:21 PM MST · 14195 days ago · 4 km deep · 33 km away
13. 1.512 km ENE of Huntsville, UtahWed, Nov 11, 12:20 AM MST · 14196 days ago · 14 km deep · 30 km away
14. 2.311 km NNE of Howell, UtahFri, Nov 6, 9:39 AM MST · 14200 days ago · 6 km deep · 67 km away
15. 1.96 km SE of Snowville, UtahTue, Nov 3, 7:15 PM MST · 14203 days ago · 9 km deep · 87 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50034875. Read Wed, Sep 23, 2026, 3:22 AM UTC.