M1.6 earthquake 86 km E of Montello, Nevada

Magnitude

1.6 (md), micro

Local time

Fri, Oct 30, 1987, 5:25 AM MST

UTC

1987-10-30 12:25:39 UTC

Depth

7.5 km (4.6 mi), shallow

Epicenter

41.196° N, 113.169° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 1.0 km in depth

Depth from

From location

Station coverage gap

158°

Stations used

7

• Hooper, UtahPopulation 8,214. Forecast88 kmW
• Grantsville, UtahPopulation 10,027. Forecast89 kmNW
• West Valley City, UtahPopulation 136,208. Forecast113 kmWNW
• Phoenix, ArizonaPopulation 1,650,070. Forecast867 kmN

After

1. 1.986 km E of Montello, NevadaFri, Oct 30, 12:06 PM MST · 14214 days ago · 9 km deep · 2 km away
2. 1.586 km E of Montello, NevadaFri, Oct 30, 7:11 PM MST · 14213 days ago · 7 km deep · 0 km away
3. 1.784 km E of Montello, NevadaFri, Oct 30, 8:54 PM MST · 14213 days ago · 5 km deep · 2 km away
4. 1.684 km E of Montello, NevadaSat, Oct 31, 12:22 AM MST · 14213 days ago · 9 km deep · 2 km away
5. 1.683 km E of Montello, NevadaSun, Nov 1, 1:35 AM MST · 14212 days ago · 4 km deep · 3 km away
6. 1.785 km E of Montello, NevadaSun, Nov 1, 7:31 AM MST · 14212 days ago · 7 km deep · 1 km away
7. 1.784 km E of Montello, NevadaSun, Nov 1, 2:32 PM MST · 14211 days ago · 6 km deep · 3 km away
8. 1.585 km E of Montello, NevadaMon, Nov 2, 11:00 PM MST · 14210 days ago · 5 km deep · 1 km away
9. 1.685 km E of Montello, NevadaTue, Nov 3, 9:58 AM MST · 14210 days ago · 6 km deep · 1 km away
10. 1.586 km E of Montello, NevadaTue, Nov 3, 11:34 AM MST · 14210 days ago · 6 km deep · 1 km away
11. 1.96 km SE of Snowville, UtahTue, Nov 3, 7:15 PM MST · 14209 days ago · 9 km deep · 92 km away
12. 2.284 km E of Montello, NevadaThu, Nov 5, 8:02 PM MST · 14207 days ago · 9 km deep · 1 km away
13. 2.084 km E of Montello, NevadaFri, Nov 6, 5:59 AM MST · 14207 days ago · 8 km deep · 2 km away
14. 2.783 km E of Montello, NevadaSat, Nov 7, 10:52 AM MST · 14206 days ago · 9 km deep · 3 km away
15. 2.084 km E of Montello, NevadaSat, Nov 7, 6:03 PM MST · 14205 days ago · 6 km deep · 3 km away
16. 2.685 km E of Montello, NevadaSun, Nov 8, 4:08 PM MST · 14204 days ago · 9 km deep · 1 km away
17. 1.985 km E of Montello, NevadaMon, Nov 9, 9:25 PM MST · 14203 days ago · 6 km deep · 1 km away
18. 2.285 km E of Montello, NevadaThu, Nov 12, 3:29 AM MST · 14201 days ago · 9 km deep · 2 km away
19. 1.713 km ESE of Snowville, UtahSat, Nov 14, 3:43 AM MST · 14199 days ago · 6 km deep · 93 km away
20. 1.784 km E of Montello, NevadaSat, Nov 14, 3:44 AM MST · 14199 days ago · 4 km deep · 3 km away
21. 1.686 km E of Montello, NevadaSat, Nov 14, 5:44 AM MST · 14199 days ago · 6 km deep · 1 km away
22. 1.684 km E of Montello, NevadaSat, Nov 14, 9:19 AM MST · 14199 days ago · 6 km deep · 2 km away
23. 1.7UtahMon, Nov 16, 3:08 PM MST · 14196 days ago · 0 km deep · 3 km away
24. 2.886 km E of Montello, NevadaTue, Nov 17, 9:20 AM MST · 14196 days ago · 8 km deep · 2 km away
25. 1.683 km E of Montello, NevadaTue, Nov 17, 5:34 PM MST · 14195 days ago · 5 km deep · 2 km away
26. 1.884 km E of Montello, NevadaMon, Nov 23, 4:04 AM MST · 14190 days ago · 5 km deep · 2 km away
27. 1.619 km SW of Thatcher, UtahTue, Nov 24, 8:13 PM MST · 14188 days ago · 0 km deep · 73 km away
28. 1.884 km E of Montello, NevadaFri, Nov 27, 2:43 AM MST · 14186 days ago · 4 km deep · 2 km away
29. 1.983 km E of Montello, NevadaFri, Nov 27, 7:45 AM MST · 14186 days ago · 9 km deep · 3 km away
30. 1.586 km E of Montello, NevadaFri, Nov 27, 3:05 PM MST · 14185 days ago · 6 km deep · 1 km away
31. 1.613 km SE of Snowville, UtahSun, Nov 29, 12:06 AM MST · 14184 days ago · 7 km deep · 91 km away
32. 1.685 km E of Montello, NevadaSun, Nov 29, 5:48 AM MST · 14184 days ago · 4 km deep · 2 km away
33. 1.612 km SE of Snowville, UtahSun, Nov 29, 8:58 AM MST · 14184 days ago · 4 km deep · 91 km away
34. 1.69 km ENE of Howell, UtahMon, Nov 30, 6:07 PM MST · 14182 days ago · 4 km deep · 99 km away
35. 1.786 km E of Montello, NevadaWed, Dec 2, 5:28 PM MST · 14180 days ago · 8 km deep · 1 km away
36. 2.285 km E of Montello, NevadaFri, Dec 11, 6:05 AM MST · 14172 days ago · 4 km deep · 2 km away
37. 1.8UtahMon, Dec 14, 9:39 AM MST · 14169 days ago · 8 km deep · 1 km away
38. 1.69 km NNE of Howell, UtahMon, Dec 14, 5:43 PM MST · 14168 days ago · 11 km deep · 99 km away
39. 1.986 km W of Hooper, UtahTue, Dec 15, 11:00 AM MST · 14168 days ago · 5 km deep · 1 km away
40. 2.386 km E of Montello, NevadaSat, Dec 19, 2:57 PM MST · 14163 days ago · 6 km deep · 1 km away
41. 2.613 km ESE of Snowville, UtahSun, Dec 20, 6:15 PM MST · 14162 days ago · 7 km deep · 96 km away
42. 1.886 km E of Montello, NevadaTue, Dec 22, 5:55 AM MST · 14161 days ago · 7 km deep · 1 km away
43. 1.784 km E of Montello, NevadaThu, Dec 24, 1:23 PM MST · 14158 days ago · 4 km deep · 3 km away

Before

1. 1.687 km W of Hooper, UtahFri, Oct 30, 3:17 AM MST · 14214 days ago · 7 km deep · 1 km away
2. 1.785 km E of Montello, NevadaFri, Oct 30, 1:07 AM MST · 14214 days ago · 10 km deep · 1 km away
3. 1.885 km E of Montello, NevadaThu, Oct 29, 11:43 AM MST · 14215 days ago · 7 km deep · 0 km away
4. 1.786 km E of Montello, NevadaThu, Oct 29, 7:12 AM MST · 14215 days ago · 7 km deep · 1 km away
5. 1.812 km E of Snowville, UtahWed, Oct 28, 10:17 PM MST · 14215 days ago · 8 km deep · 97 km away
6. 1.985 km E of Montello, NevadaWed, Oct 28, 8:42 PM MST · 14215 days ago · 9 km deep · 1 km away
7. 2.386 km W of Hooper, UtahWed, Oct 28, 4:03 PM MST · 14215 days ago · 8 km deep · 2 km away
8. 1.785 km E of Montello, NevadaWed, Oct 28, 10:30 AM MST · 14216 days ago · 9 km deep · 1 km away
9. 1.785 km E of Montello, NevadaTue, Oct 27, 9:34 PM MST · 14216 days ago · 6 km deep · 0 km away
10. 1.585 km E of Montello, NevadaTue, Oct 27, 12:08 AM MST · 14217 days ago · 7 km deep · 0 km away
11. 2.086 km E of Montello, NevadaMon, Oct 26, 7:23 PM MST · 14217 days ago · 6 km deep · 1 km away
12. 1.585 km E of Montello, NevadaMon, Oct 26, 1:07 PM MST · 14217 days ago · 6 km deep · 0 km away
13. 1.885 km E of Montello, NevadaMon, Oct 26, 12:31 PM MST · 14218 days ago · 7 km deep · 2 km away
14. 1.885 km E of Montello, NevadaMon, Oct 26, 12:08 PM MST · 14218 days ago · 10 km deep · 2 km away
15. 1.586 km E of Montello, NevadaMon, Oct 26, 4:45 AM MST · 14218 days ago · 8 km deep · 0 km away
16. 1.685 km E of Montello, NevadaMon, Oct 26, 1:24 AM MST · 14218 days ago · 11 km deep · 3 km away
17. 2.484 km E of Montello, NevadaSun, Oct 25, 9:32 PM MST · 14218 days ago · 8 km deep · 2 km away
18. 4.685 km E of Montello, NevadaSun, Oct 25, 9:16 PM MST · 14218 days ago · 10 km deep · 1 km away
19. 2.311 km E of Snowville, UtahSun, Oct 25, 2:14 PM MST · 14218 days ago · 9 km deep · 97 km away
20. 2.018 km SW of Thatcher, UtahSun, Oct 25, 12:37 PM MST · 14219 days ago · 7 km deep · 74 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50034265. Read Tue, Sep 29, 2026, 7:19 AM UTC.