M1.6 earthquake 22 km W of Randolph, Utah

Magnitude

1.6 (md), micro

Local time

Wed, Nov 18, 1987, 7:07 PM MST

UTC

1987-11-19 02:07:24 UTC

Depth

2.4 km (1.5 mi), shallow

Epicenter

41.628° N, 111.453° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 1.5 km in depth

Depth from

From location

Station coverage gap

138°

Stations used

6

• Randolph, UtahPopulation 462. Forecast23 kmW
• North Logan, UtahPopulation 10,181. Forecast33 kmESE
• Salt Lake City, UtahPopulation 215,548. Forecast103 kmNNE

After

1. 1.619 km SW of Thatcher, UtahTue, Nov 24, 8:13 PM MST · 14190 days ago · 0 km deep · 83 km away
2. 2.59 km W of Garden, UtahFri, Nov 27, 1:59 PM MST · 14187 days ago · -3 km deep · 30 km away
3. 1.613 km SE of Snowville, UtahSun, Nov 29, 12:06 AM MST · 14185 days ago · 7 km deep · 98 km away
4. 1.612 km SE of Snowville, UtahSun, Nov 29, 8:58 AM MST · 14185 days ago · 4 km deep · 99 km away
5. 2.39 km WSW of Garden City, UtahSun, Nov 29, 9:12 AM MST · 14185 days ago · -2 km deep · 32 km away
6. 1.69 km ENE of Howell, UtahMon, Nov 30, 6:07 PM MST · 14184 days ago · 4 km deep · 76 km away
7. 2.218 km ENE of Snowville, UtahWed, Dec 2, 4:33 AM MST · 14182 days ago · 1 km deep · 100 km away
8. 1.810 km ENE of Avon, UtahWed, Dec 2, 7:17 AM MST · 14182 days ago · 4 km deep · 22 km away
9. 2.810 km ENE of Howell, UtahFri, Dec 11, 5:43 AM MST · 14173 days ago · 2 km deep · 77 km away
10. 1.69 km NNE of Howell, UtahMon, Dec 14, 5:43 PM MST · 14170 days ago · 11 km deep · 83 km away
11. 2.613 km ESE of Snowville, UtahSun, Dec 20, 6:15 PM MST · 14164 days ago · 7 km deep · 97 km away
12. 1.711 km ENE of Howell, UtahWed, Dec 30, 12:32 PM MST · 14154 days ago · 0 km deep · 76 km away
13. 2.118 km WSW of Georgetown, IdahoSun, Jan 3, 6:43 AM MST · 14150 days ago · 2 km deep · 90 km away
14. 1.712 km NE of Howell, UtahSat, Jan 9, 8:23 PM MST · 14144 days ago · 8 km deep · 77 km away

Before

1. 2.023 km N of Henefer, UtahSat, Nov 14, 9:58 AM MST · 14200 days ago · 6 km deep · 44 km away
2. 1.713 km ESE of Snowville, UtahSat, Nov 14, 3:43 AM MST · 14200 days ago · 6 km deep · 97 km away
3. 1.63 km S of Deweyville, UtahWed, Nov 11, 2:21 PM MST · 14203 days ago · 4 km deep · 53 km away
4. 1.512 km ENE of Huntsville, UtahWed, Nov 11, 12:20 AM MST · 14203 days ago · 14 km deep · 38 km away
5. 2.311 km NNE of Howell, UtahFri, Nov 6, 9:39 AM MST · 14208 days ago · 6 km deep · 84 km away
6. 2.611 km ENE of Huntsville, UtahSun, Nov 1, 11:06 PM MST · 14212 days ago · 14 km deep · 39 km away
7. 1.811 km ENE of Huntsville, UtahSun, Nov 1, 11:04 PM MST · 14212 days ago · 12 km deep · 38 km away
8. 1.812 km E of Snowville, UtahWed, Oct 28, 10:17 PM MST · 14217 days ago · 8 km deep · 99 km away
9. 2.311 km E of Snowville, UtahSun, Oct 25, 2:14 PM MST · 14220 days ago · 9 km deep · 99 km away
10. 2.018 km SW of Thatcher, UtahSun, Oct 25, 12:37 PM MST · 14220 days ago · 7 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50034655. Read Wed, Sep 30, 2026, 4:57 PM UTC.