M1.6 earthquake 8 km SE of Willits, California

Magnitude

1.6 (md), micro

Local time

Mon, Jun 1, 1987, 1:18 PM PDT

UTC

1987-06-01 20:18:00 UTC

Depth

2.5 km (1.6 mi), shallow

Epicenter

39.359° N, 123.285° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 4.4 km in depth

Magnitude uncertainty

±0.31

Depth from

From location

Station coverage gap

101°

Stations used

7

• Willits, CaliforniaPopulation 4,861. Forecast8 kmSE
• Ukiah, CaliforniaPopulation 15,917. Forecast24 kmNNW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast113 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast741 kmNW

After

1. 2.27 km WSW of Cobb, CaliforniaFri, Jun 19, 5:01 AM PDT · 14340 days ago · 3 km deep · 75 km away
2. 2.04 km W of Cobb, CaliforniaFri, Jun 19, 12:19 PM PDT · 14340 days ago · -1 km deep · 74 km away
3. 1.6Northern CaliforniaFri, Jun 19, 8:50 PM PDT · 14340 days ago · 1 km deep · 74 km away
4. 2.012 km SE of Covelo, CaliforniaFri, Jun 19, 10:20 PM PDT · 14340 days ago · 1 km deep · 41 km away
5. 1.77 km W of Cobb, CaliforniaFri, Jun 19, 11:55 PM PDT · 14340 days ago · 3 km deep · 73 km away
6. 1.87 km W of Cobb, CaliforniaSat, Jun 20, 1:49 AM PDT · 14340 days ago · 2 km deep · 73 km away
7. 1.65 km WNW of Cobb, CaliforniaSat, Jun 20, 7:05 AM PDT · 14339 days ago · 1 km deep · 72 km away
8. 1.95 km W of Cobb, CaliforniaSat, Jun 20, 7:05 AM PDT · 14339 days ago · 0 km deep · 74 km away
9. 1.65 km WNW of Cobb, CaliforniaSat, Jun 20, 7:08 AM PDT · 14339 days ago · 1 km deep · 72 km away
10. 2.15 km SSW of Cobb, CaliforniaSat, Jun 20, 8:03 AM PDT · 14339 days ago · 0 km deep · 79 km away
11. 1.66 km W of Cobb, CaliforniaSat, Jun 20, 2:47 PM PDT · 14339 days ago · 3 km deep · 73 km away
12. 1.66 km W of Cobb, CaliforniaSat, Jun 20, 4:30 PM PDT · 14339 days ago · 2 km deep · 73 km away
13. 1.64 km W of Cobb, CaliforniaSat, Jun 20, 7:27 PM PDT · 14339 days ago · 1 km deep · 74 km away
14. 1.521 km ENE of Potter Valley, CaliforniaSun, Jun 21, 11:16 PM PDT · 14338 days ago · 9 km deep · 36 km away
15. 2.19 km WSW of Cobb, CaliforniaMon, Jun 22, 12:04 AM PDT · 14338 days ago · 1 km deep · 74 km away
16. 1.85 km WSW of Cobb, CaliforniaMon, Jun 22, 2:36 PM PDT · 14337 days ago · 0 km deep · 76 km away
17. 1.82 km N of Cloverdale, CaliforniaMon, Jun 22, 7:54 PM PDT · 14337 days ago · 0 km deep · 63 km away
18. 1.94 km WSW of Cobb, CaliforniaTue, Jun 23, 12:07 AM PDT · 14337 days ago · 5 km deep · 76 km away
19. 1.88 km WSW of Cobb, CaliforniaTue, Jun 23, 3:14 AM PDT · 14336 days ago · -1 km deep · 73 km away
20. 1.85 km SSW of Cobb, CaliforniaTue, Jun 23, 6:59 AM PDT · 14336 days ago · 1 km deep · 79 km away
21. 1.86 km SW of Cobb, CaliforniaTue, Jun 23, 11:04 AM PDT · 14336 days ago · 1 km deep · 77 km away
22. 1.610 km SE of Boonville, CaliforniaTue, Jun 23, 6:46 PM PDT · 14336 days ago · 2 km deep · 46 km away
23. 1.810 km SE of Boonville, CaliforniaTue, Jun 23, 7:08 PM PDT · 14336 days ago · 1 km deep · 46 km away
24. 2.15 km W of Cobb, CaliforniaWed, Jun 24, 1:13 PM PDT · 14335 days ago · 1 km deep · 73 km away
25. 1.73 km ENE of Calpella, CaliforniaWed, Jun 24, 2:31 PM PDT · 14335 days ago · 2 km deep · 17 km away
26. 1.54 km ENE of Calpella, CaliforniaWed, Jun 24, 2:33 PM PDT · 14335 days ago · 5 km deep · 17 km away
27. 2.2near the coast of Northern CaliforniaWed, Jun 24, 2:40 PM PDT · 14335 days ago · 2 km deep · 17 km away
28. 1.54 km ENE of Calpella, CaliforniaWed, Jun 24, 2:41 PM PDT · 14335 days ago · 5 km deep · 17 km away
29. 1.54 km WSW of Cobb, CaliforniaWed, Jun 24, 3:23 PM PDT · 14335 days ago · 2 km deep · 77 km away
30. 1.53 km N of Cloverdale, CaliforniaWed, Jun 24, 5:43 PM PDT · 14335 days ago · 0 km deep · 62 km away
31. 1.67 km E of Willits, CaliforniaThu, Jun 25, 10:13 AM PDT · 14334 days ago · 8 km deep · 7 km away
32. 1.55 km SW of Cobb, CaliforniaThu, Jun 25, 12:33 PM PDT · 14334 days ago · 0 km deep · 78 km away
33. 1.65 km WSW of Cobb, CaliforniaThu, Jun 25, 2:59 PM PDT · 14334 days ago · 1 km deep · 76 km away
34. 1.84 km WSW of Cobb, CaliforniaThu, Jun 25, 3:14 PM PDT · 14334 days ago · 1 km deep · 76 km away
35. 1.68 km W of Cobb, CaliforniaFri, Jun 26, 3:25 AM PDT · 14333 days ago · 1 km deep · 73 km away
36. 1.68 km NW of Redwood Valley, CaliforniaFri, Jun 26, 6:42 AM PDT · 14333 days ago · 3 km deep · 4 km away
37. 1.66 km WSW of Cobb, CaliforniaFri, Jun 26, 10:18 AM PDT · 14333 days ago · 3 km deep · 75 km away
38. 2.46 km WNW of Cobb, CaliforniaFri, Jun 26, 1:09 PM PDT · 14333 days ago · 0 km deep · 72 km away
39. 2.87 km WNW of Cobb, CaliforniaFri, Jun 26, 1:09 PM PDT · 14333 days ago · -1 km deep · 72 km away
40. 1.66 km W of Cobb, CaliforniaFri, Jun 26, 10:19 PM PDT · 14333 days ago · 3 km deep · 73 km away
41. 1.55 km W of Cobb, CaliforniaSat, Jun 27, 8:41 AM PDT · 14332 days ago · 1 km deep · 73 km away
42. 1.86 km W of Cobb, CaliforniaSat, Jun 27, 11:19 AM PDT · 14332 days ago · 3 km deep · 74 km away
43. 2.24 km WSW of Cobb, CaliforniaSun, Jun 28, 12:50 AM PDT · 14332 days ago · 0 km deep · 76 km away
44. 1.94 km W of Cobb, CaliforniaSun, Jun 28, 4:48 AM PDT · 14331 days ago · 0 km deep · 74 km away
45. 2.05 km W of Cobb, CaliforniaSun, Jun 28, 2:21 PM PDT · 14331 days ago · -1 km deep · 73 km away
46. 1.66 km WSW of Cobb, CaliforniaSun, Jun 28, 7:14 PM PDT · 14331 days ago · 0 km deep · 75 km away
47. 1.66 km W of Cobb, CaliforniaSun, Jun 28, 9:49 PM PDT · 14331 days ago · 3 km deep · 74 km away
48. 2.55 km SW of Cobb, CaliforniaMon, Jun 29, 2:14 AM PDT · 14331 days ago · 2 km deep · 77 km away
49. 2.35 km WSW of Cobb, CaliforniaMon, Jun 29, 3:15 AM PDT · 14330 days ago · 3 km deep · 75 km away
50. 3.223 km NE of Potter Valley, CaliforniaTue, Jun 30, 3:36 AM PDT · 14329 days ago · 9 km deep · 33 km away
51. 1.59 km SSE of Boonville, CaliforniaTue, Jun 30, 4:30 AM PDT · 14329 days ago · 3 km deep · 47 km away
52. 1.87 km W of Cobb, CaliforniaTue, Jun 30, 9:14 PM PDT · 14329 days ago · -1 km deep · 73 km away
53. 2.711 km N of Cloverdale, CaliforniaWed, Jul 1, 10:22 AM PDT · 14328 days ago · 5 km deep · 56 km away
54. 2.39 km WSW of Cobb, CaliforniaWed, Jul 1, 3:50 PM PDT · 14328 days ago · 2 km deep · 73 km away
55. 1.88 km WSW of Cobb, CaliforniaWed, Jul 1, 5:00 PM PDT · 14328 days ago · 1 km deep · 74 km away
56. 1.98 km WSW of Cobb, CaliforniaWed, Jul 1, 6:51 PM PDT · 14328 days ago · 4 km deep · 75 km away
57. 1.66 km WSW of Cobb, CaliforniaThu, Jul 2, 6:31 AM PDT · 14327 days ago · 0 km deep · 76 km away
58. 2.59 km NW of Stonyford, CaliforniaThu, Jul 2, 10:24 AM PDT · 14327 days ago · 6 km deep · 57 km away
59. 1.810 km N of Cloverdale, CaliforniaThu, Jul 2, 12:29 PM PDT · 14327 days ago · 2 km deep · 57 km away
60. 1.83 km NNW of Cloverdale, CaliforniaThu, Jul 2, 6:11 PM PDT · 14327 days ago · 0 km deep · 62 km away

The first 60 of 175.

From the USGS Earthquake Hazards Program and its partner networks, event nc1150192. Read Tue, Sep 22, 2026, 9:29 PM UTC.