M1.7 earthquake 84 km W of Hooper, Utah

Magnitude

1.7 (md), micro

Local time

Thu, Sep 24, 1987, 11:36 PM MDT

UTC

1987-09-25 05:36:34 UTC

Depth

12.0 km (7.5 mi), shallow

Epicenter

41.202° N, 113.125° W

Region

Utah

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.3 km horizontally, 0.8 km in depth

Depth from

From location

Station coverage gap

218°, poorly surrounded by stations

Stations used

17

• Hooper, UtahPopulation 8,214. Forecast84 kmW
• Grantsville, UtahPopulation 10,027. Forecast87 kmNW
• West Valley City, UtahPopulation 136,208. Forecast110 kmWNW
• Phoenix, ArizonaPopulation 1,650,070. Forecast867 kmN

After

1. 1.983 km W of Hooper, UtahFri, Sep 25, 12:03 AM MDT · 14242 days ago · 11 km deep · 1 km away
2. 1.882 km W of Hooper, UtahFri, Sep 25, 12:10 AM MDT · 14242 days ago · 11 km deep · 2 km away
3. 1.586 km W of Hooper, UtahFri, Sep 25, 12:33 AM MDT · 14242 days ago · 9 km deep · 3 km away
4. 1.685 km E of Montello, NevadaFri, Sep 25, 1:13 AM MDT · 14242 days ago · 11 km deep · 5 km away
5. 1.883 km W of Hooper, UtahFri, Sep 25, 1:21 AM MDT · 14242 days ago · 6 km deep · 2 km away
6. 1.983 km W of Hooper, UtahFri, Sep 25, 1:39 AM MDT · 14242 days ago · 11 km deep · 1 km away
7. 1.786 km W of Hooper, UtahFri, Sep 25, 2:39 AM MDT · 14242 days ago · 12 km deep · 3 km away
8. 1.679 km W of Hooper, UtahFri, Sep 25, 4:28 AM MDT · 14242 days ago · 9 km deep · 5 km away
9. 1.981 km W of Hooper, UtahFri, Sep 25, 8:13 AM MDT · 14242 days ago · 6 km deep · 2 km away
10. 2.280 km W of Hooper, UtahFri, Sep 25, 9:12 AM MDT · 14242 days ago · 12 km deep · 4 km away
11. 1.583 km W of Hooper, UtahFri, Sep 25, 10:51 AM MDT · 14242 days ago · 5 km deep · 1 km away
12. 1.883 km W of Hooper, UtahFri, Sep 25, 11:35 AM MDT · 14242 days ago · 9 km deep · 1 km away
13. 1.585 km E of Montello, NevadaFri, Sep 25, 12:10 PM MDT · 14242 days ago · 6 km deep · 5 km away
14. 1.984 km W of Hooper, UtahFri, Sep 25, 12:18 PM MDT · 14242 days ago · 8 km deep · 3 km away
15. 1.780 km W of Hooper, UtahFri, Sep 25, 3:00 PM MDT · 14241 days ago · 9 km deep · 4 km away
16. 3.982 km W of Hooper, UtahFri, Sep 25, 6:28 PM MDT · 14241 days ago · 17 km deep · 2 km away
17. 2.384 km E of Montello, NevadaSat, Sep 26, 12:55 AM MDT · 14241 days ago · 9 km deep · 5 km away
18. 2.085 km E of Montello, NevadaSat, Sep 26, 4:18 AM MDT · 14241 days ago · 8 km deep · 4 km away
19. 3.385 km E of Montello, NevadaSat, Sep 26, 8:47 AM MDT · 14241 days ago · 11 km deep · 4 km away
20. 2.985 km E of Montello, NevadaSat, Sep 26, 5:14 PM MDT · 14240 days ago · 8 km deep · 4 km away
21. 1.785 km E of Montello, NevadaSat, Sep 26, 5:28 PM MDT · 14240 days ago · 10 km deep · 5 km away
22. 1.786 km W of Hooper, UtahSun, Sep 27, 10:34 AM MDT · 14240 days ago · 6 km deep · 2 km away
23. 1.785 km E of Montello, NevadaSun, Sep 27, 6:28 PM MDT · 14239 days ago · 7 km deep · 4 km away
24. 3.983 km W of Hooper, UtahMon, Sep 28, 12:06 AM MDT · 14239 days ago · 10 km deep · 2 km away
25. 1.684 km E of Montello, NevadaMon, Sep 28, 8:22 AM MDT · 14239 days ago · 10 km deep · 5 km away
26. 1.785 km E of Montello, NevadaMon, Sep 28, 2:10 PM MDT · 14238 days ago · 7 km deep · 4 km away
27. 1.785 km E of Montello, NevadaMon, Sep 28, 2:32 PM MDT · 14238 days ago · 8 km deep · 4 km away
28. 2.086 km E of Montello, NevadaWed, Sep 30, 1:57 PM MDT · 14236 days ago · 9 km deep · 4 km away
29. 3.584 km W of Hooper, UtahThu, Oct 1, 3:16 AM MDT · 14236 days ago · 11 km deep · 0 km away
30. 1.885 km E of Montello, NevadaThu, Oct 1, 10:14 AM MDT · 14236 days ago · 8 km deep · 4 km away
31. 2.185 km E of Montello, NevadaThu, Oct 1, 11:00 AM MDT · 14236 days ago · 9 km deep · 5 km away
32. 1.718 km SW of Thatcher, UtahFri, Oct 2, 6:14 AM MDT · 14235 days ago · 7 km deep · 70 km away
33. 3.318 km SW of Thatcher, UtahFri, Oct 2, 8:35 AM MDT · 14235 days ago · 7 km deep · 70 km away
34. 2.219 km SW of Thatcher, UtahFri, Oct 2, 10:26 AM MDT · 14235 days ago · 5 km deep · 70 km away
35. 1.818 km SW of Thatcher, UtahFri, Oct 2, 11:01 AM MDT · 14235 days ago · 8 km deep · 71 km away
36. 2.017 km SW of Thatcher, UtahFri, Oct 2, 5:53 PM MDT · 14234 days ago · 6 km deep · 71 km away
37. 1.786 km E of Montello, NevadaSat, Oct 3, 2:33 PM MDT · 14233 days ago · 6 km deep · 4 km away
38. 3.120 km SW of Thatcher, UtahSun, Oct 4, 11:38 AM MDT · 14233 days ago · 21 km deep · 68 km away
39. 1.584 km E of Montello, NevadaSun, Oct 4, 6:26 PM MDT · 14232 days ago · 5 km deep · 6 km away
40. 3.385 km W of Hooper, UtahMon, Oct 5, 4:31 AM MDT · 14232 days ago · 14 km deep · 2 km away
41. 1.884 km E of Montello, NevadaMon, Oct 5, 6:50 AM MDT · 14232 days ago · 7 km deep · 6 km away
42. 1.681 km E of Montello, NevadaMon, Oct 5, 3:30 PM MDT · 14231 days ago · 8 km deep · 8 km away
43. 2.385 km E of Montello, NevadaMon, Oct 5, 10:44 PM MDT · 14231 days ago · 9 km deep · 5 km away
44. 1.785 km E of Montello, NevadaTue, Oct 6, 8:02 AM MDT · 14231 days ago · 5 km deep · 4 km away
45. 1.783 km E of Montello, NevadaTue, Oct 6, 6:50 PM MDT · 14230 days ago · 7 km deep · 7 km away
46. 1.985 km E of Montello, NevadaTue, Oct 6, 7:39 PM MDT · 14230 days ago · 9 km deep · 5 km away
47. 1.683 km W of Hooper, UtahThu, Oct 8, 1:07 PM MDT · 14229 days ago · 11 km deep · 3 km away
48. 1.886 km E of Montello, NevadaFri, Oct 9, 4:44 AM MDT · 14228 days ago · 6 km deep · 4 km away
49. 1.684 km E of Montello, NevadaFri, Oct 9, 11:05 PM MDT · 14227 days ago · 5 km deep · 5 km away
50. 1.519 km SW of Thatcher, UtahTue, Oct 13, 11:28 AM MDT · 14224 days ago · 3 km deep · 69 km away
51. 1.786 km W of Hooper, UtahWed, Oct 14, 8:30 PM MDT · 14222 days ago · 7 km deep · 3 km away
52. 1.985 km E of Montello, NevadaThu, Oct 15, 2:45 AM MDT · 14222 days ago · 9 km deep · 4 km away
53. 1.784 km E of Montello, NevadaThu, Oct 15, 12:23 PM MDT · 14222 days ago · 7 km deep · 5 km away
54. 1.684 km E of Montello, NevadaFri, Oct 16, 11:41 AM MDT · 14221 days ago · 5 km deep · 5 km away
55. 2.118 km SW of Thatcher, UtahSat, Oct 17, 5:43 PM MDT · 14219 days ago · 8 km deep · 70 km away
56. 1.984 km E of Montello, NevadaMon, Oct 19, 9:39 PM MDT · 14217 days ago · 11 km deep · 6 km away
57. 1.777 km E of Montello, NevadaThu, Oct 22, 11:53 PM MDT · 14214 days ago · 20 km deep · 13 km away
58. 4.186 km E of Montello, NevadaFri, Oct 23, 1:44 PM MDT · 14213 days ago · 9 km deep · 4 km away
59. 1.985 km E of Montello, NevadaFri, Oct 23, 2:14 PM MDT · 14213 days ago · 7 km deep · 4 km away
60. 2.685 km E of Montello, NevadaFri, Oct 23, 2:39 PM MDT · 14213 days ago · 10 km deep · 5 km away

The first 60 of 117.

Before

1. 4.282 km W of Hooper, UtahThu, Sep 24, 11:18 PM MDT · 14242 days ago · 8 km deep · 4 km away
2. 2.386 km W of Hooper, UtahThu, Sep 24, 10:49 PM MDT · 14242 days ago · 5 km deep · 3 km away
3. 1.883 km SW of Howell, UtahThu, Sep 24, 10:36 PM MDT · 14242 days ago · 9 km deep · 5 km away
4. 4.786 km E of Montello, NevadaThu, Sep 24, 10:27 PM MDT · 14242 days ago · 9 km deep · 4 km away
5. 4.084 km W of Hooper, UtahThu, Sep 24, 10:09 PM MDT · 14242 days ago · 8 km deep · 1 km away
6. 3.785 km W of Hooper, UtahThu, Sep 17, 2:31 AM MDT · 14250 days ago · 14 km deep · 2 km away
7. 1.611 km SSE of Snowville, UtahMon, Sep 14, 10:42 AM MDT · 14253 days ago · 3 km deep · 83 km away
8. 2.314 km NW of Howell, UtahWed, Aug 26, 6:40 AM MDT · 14272 days ago · 6 km deep · 91 km away

From the USGS Earthquake Hazards Program and its partner networks, event uu50033620. Read Tue, Sep 22, 2026, 6:40 AM UTC.