M1.9 earthquake 10 km S of Comptche, California

Magnitude

1.9 (md), micro

Local time

Fri, Jul 26, 1985, 7:15 AM PDT

UTC

1985-07-26 14:15:02 UTC

Depth

4.6 km (2.9 mi), shallow

Epicenter

39.173° N, 123.589° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.8 km horizontally, 1.1 km in depth

Magnitude uncertainty

±0.10

Depth from

From location

Station coverage gap

231°, poorly surrounded by stations

Stations used

18

• Mendocino, CaliforniaPopulation 894. Forecast24 kmSE
• Ukiah, CaliforniaPopulation 15,917. Forecast33 kmW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast111 kmNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast743 kmNW

After

1. 1.67 km W of Cobb, CaliforniaSat, Jul 27, 3:59 AM PDT · 15033 days ago · 1 km deep · 78 km away
2. 2.027 km N of Potter Valley, CaliforniaSat, Jul 27, 4:08 AM PDT · 15033 days ago · 4 km deep · 61 km away
3. 1.95 km SW of Cobb, CaliforniaSun, Jul 28, 1:10 PM PDT · 15031 days ago · 0 km deep · 83 km away
4. 1.67 km W of Cobb, CaliforniaSun, Jul 28, 7:42 PM PDT · 15031 days ago · 3 km deep · 78 km away
5. 2.125 km WNW of Elk Creek, CaliforniaMon, Jul 29, 5:54 AM PDT · 15030 days ago · 4 km deep · 90 km away
6. 2.15 km WSW of Cobb, CaliforniaMon, Jul 29, 2:57 PM PDT · 15030 days ago · 0 km deep · 81 km away
7. 3.35 km WSW of Cobb, CaliforniaMon, Jul 29, 2:57 PM PDT · 15030 days ago · 0 km deep · 81 km away
8. 1.76 km WSW of Cobb, CaliforniaMon, Jul 29, 3:12 PM PDT · 15030 days ago · 0 km deep · 81 km away
9. 2.324 km WNW of Elk Creek, CaliforniaMon, Jul 29, 6:58 PM PDT · 15030 days ago · 2 km deep · 92 km away
10. 1.624 km WNW of Elk Creek, CaliforniaMon, Jul 29, 7:25 PM PDT · 15030 days ago · 4 km deep · 93 km away
11. 1.610 km W of Cobb, CaliforniaTue, Jul 30, 8:50 PM PDT · 15029 days ago · 2 km deep · 77 km away
12. 1.78 km W of Cobb, CaliforniaTue, Jul 30, 8:56 PM PDT · 15029 days ago · 0 km deep · 77 km away
13. 1.74 km E of Cloverdale, CaliforniaWed, Jul 31, 4:01 PM PDT · 15028 days ago · 22 km deep · 68 km away
14. 1.70 km SSE of Redwood Valley, CaliforniaThu, Aug 1, 7:15 AM PDT · 15027 days ago · 6 km deep · 35 km away
15. 1.811 km NE of Potter Valley, CaliforniaThu, Aug 1, 7:55 AM PDT · 15027 days ago · 1 km deep · 55 km away
16. 1.60 km WSW of Redwood Valley, CaliforniaThu, Aug 1, 7:55 AM PDT · 15027 days ago · 7 km deep · 35 km away
17. 2.80 km NNE of Redwood Valley, CaliforniaThu, Aug 1, 7:57 AM PDT · 15027 days ago · 6 km deep · 35 km away
18. 1.50 km SW of Redwood Valley, CaliforniaThu, Aug 1, 8:02 AM PDT · 15027 days ago · 4 km deep · 34 km away
19. 1.55 km W of Cobb, CaliforniaThu, Aug 1, 10:28 AM PDT · 15027 days ago · 0 km deep · 79 km away
20. 1.76 km W of Cobb, CaliforniaThu, Aug 1, 10:49 AM PDT · 15027 days ago · 3 km deep · 79 km away
21. 1.65 km WSW of Hopland, CaliforniaFri, Aug 2, 9:07 AM PDT · 15026 days ago · 5 km deep · 44 km away
22. 2.021 km NNE of Upper Lake, CaliforniaSat, Aug 3, 10:27 AM PDT · 15025 days ago · 6 km deep · 66 km away
23. 1.86 km E of Calpella, CaliforniaSat, Aug 3, 5:55 PM PDT · 15025 days ago · 5 km deep · 41 km away
24. 1.53 km SSW of Cobb, CaliforniaSat, Aug 3, 7:22 PM PDT · 15025 days ago · 1 km deep · 84 km away
25. 2.87 km W of Cobb, CaliforniaSun, Aug 4, 12:08 PM PDT · 15024 days ago · 3 km deep · 78 km away
26. 2.26 km WSW of Cobb, CaliforniaTue, Aug 6, 3:36 AM PDT · 15023 days ago · 0 km deep · 80 km away
27. 3.27 km W of Cobb, CaliforniaTue, Aug 6, 11:36 AM PDT · 15022 days ago · 1 km deep · 78 km away
28. 2.14 km WSW of Cobb, CaliforniaWed, Aug 7, 7:13 AM PDT · 15021 days ago · 1 km deep · 82 km away
29. 1.66 km WSW of Cobb, CaliforniaWed, Aug 7, 1:56 PM PDT · 15021 days ago · 0 km deep · 80 km away
30. 1.56 km W of Covelo, CaliforniaWed, Aug 7, 4:19 PM PDT · 15021 days ago · 6 km deep · 74 km away
31. 2.34 km NNE of Boonville, CaliforniaThu, Aug 8, 5:29 AM PDT · 15021 days ago · 4 km deep · 25 km away
32. 1.66 km SW of Cobb, CaliforniaThu, Aug 8, 6:13 AM PDT · 15020 days ago · 0 km deep · 83 km away
33. 3.25 km SW of Cobb, CaliforniaThu, Aug 8, 12:02 PM PDT · 15020 days ago · 2 km deep · 83 km away
34. 4.05 km SW of Cobb, CaliforniaThu, Aug 8, 12:03 PM PDT · 15020 days ago · -1 km deep · 82 km away
35. 2.15 km SW of Cobb, CaliforniaThu, Aug 8, 12:07 PM PDT · 15020 days ago · 0 km deep · 82 km away
36. 2.14 km NW of Redwood Valley, CaliforniaThu, Aug 8, 10:38 PM PDT · 15020 days ago · 5 km deep · 33 km away
37. 1.64 km WSW of Cobb, CaliforniaFri, Aug 9, 1:11 AM PDT · 15020 days ago · 1 km deep · 82 km away
38. 2.16 km W of Cobb, CaliforniaSat, Aug 10, 12:05 AM PDT · 15019 days ago · 3 km deep · 79 km away
39. 1.96 km W of Cobb, CaliforniaSat, Aug 10, 12:34 PM PDT · 15018 days ago · 1 km deep · 79 km away
40. 2.16 km W of Cobb, CaliforniaSat, Aug 10, 12:34 PM PDT · 15018 days ago · 0 km deep · 79 km away
41. 1.58 km WSW of Cobb, CaliforniaSat, Aug 10, 12:40 PM PDT · 15018 days ago · 4 km deep · 79 km away
42. 1.713 km N of Brooktrails, CaliforniaSat, Aug 10, 5:05 PM PDT · 15018 days ago · 6 km deep · 47 km away
43. 1.94 km W of Cobb, CaliforniaSat, Aug 10, 6:22 PM PDT · 15018 days ago · 0 km deep · 80 km away
44. 1.85 km WNW of Cobb, CaliforniaMon, Aug 12, 8:18 AM PDT · 15016 days ago · 2 km deep · 79 km away
45. 1.77 km W of Cobb, CaliforniaMon, Aug 12, 10:51 PM PDT · 15016 days ago · 0 km deep · 78 km away
46. 2.19 km WSW of Cobb, CaliforniaTue, Aug 13, 11:29 AM PDT · 15015 days ago · 1 km deep · 78 km away
47. 1.56 km W of Cobb, CaliforniaTue, Aug 13, 5:56 PM PDT · 15015 days ago · 3 km deep · 79 km away
48. 2.67 km WSW of Cobb, CaliforniaWed, Aug 14, 7:00 AM PDT · 15014 days ago · 0 km deep · 79 km away
49. 2.67 km W of Cobb, CaliforniaWed, Aug 14, 9:18 AM PDT · 15014 days ago · 3 km deep · 78 km away
50. 1.67 km WSW of Cobb, CaliforniaWed, Aug 14, 9:33 AM PDT · 15014 days ago · 0 km deep · 79 km away
51. 2.16 km WSW of Cobb, CaliforniaWed, Aug 14, 11:55 AM PDT · 15014 days ago · 4 km deep · 80 km away
52. 1.90 km ESE of Redwood Valley, CaliforniaThu, Aug 15, 12:21 AM PDT · 15014 days ago · 6 km deep · 35 km away
53. 1.69 km NE of Hopland, CaliforniaThu, Aug 15, 6:26 AM PDT · 15013 days ago · 6 km deep · 50 km away
54. 2.05 km SW of Cobb, CaliforniaThu, Aug 15, 1:47 PM PDT · 15013 days ago · 2 km deep · 82 km away
55. 2.08 km WSW of Cobb, CaliforniaFri, Aug 16, 3:32 PM PDT · 15012 days ago · 4 km deep · 79 km away
56. 2.16 km W of Cobb, CaliforniaSat, Aug 17, 12:41 AM PDT · 15012 days ago · 1 km deep · 78 km away
57. 1.613 km ENE of Clearlake Oaks, CaliforniaSat, Aug 17, 6:25 PM PDT · 15011 days ago · 5 km deep · 93 km away
58. 2.03 km W of Cobb, CaliforniaSat, Aug 17, 9:26 PM PDT · 15011 days ago · 0 km deep · 81 km away
59. 1.52 km NNW of Clearlake, CaliforniaSat, Aug 17, 10:16 PM PDT · 15011 days ago · 2 km deep · 85 km away
60. 1.97 km W of Cobb, CaliforniaSun, Aug 18, 10:16 PM PDT · 15010 days ago · 3 km deep · 78 km away

The first 60 of 188.

Before

1. 1.67 km W of Cobb, CaliforniaFri, Jul 26, 6:48 AM PDT · 15033 days ago · 0 km deep · 78 km away
2. 1.68 km W of Cobb, CaliforniaFri, Jul 26, 3:20 AM PDT · 15034 days ago · 1 km deep · 77 km away
3. 2.27 km W of Cobb, CaliforniaThu, Jul 25, 9:23 PM PDT · 15034 days ago · 1 km deep · 78 km away
4. 1.87 km WSW of Cobb, CaliforniaThu, Jul 25, 9:22 PM PDT · 15034 days ago · 1 km deep · 79 km away
5. 1.97 km WSW of Cobb, CaliforniaThu, Jul 25, 9:22 PM PDT · 15034 days ago · 1 km deep · 79 km away
6. 2.18 km W of Cobb, CaliforniaThu, Jul 25, 9:21 PM PDT · 15034 days ago · 0 km deep · 78 km away
7. 3.57 km WSW of Cobb, CaliforniaThu, Jul 25, 9:21 PM PDT · 15034 days ago · 3 km deep · 79 km away
8. 3.57 km WSW of Cobb, CaliforniaThu, Jul 25, 9:20 PM PDT · 15034 days ago · 2 km deep · 80 km away
9. 1.66 km W of Cobb, CaliforniaThu, Jul 25, 12:07 PM PDT · 15034 days ago · 3 km deep · 79 km away
10. 1.78 km SW of Cobb, CaliforniaThu, Jul 25, 11:29 AM PDT · 15034 days ago · 3 km deep · 81 km away
11. 1.76 km WNW of Cobb, CaliforniaThu, Jul 25, 11:25 AM PDT · 15034 days ago · 1 km deep · 78 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc52378. Read Wed, Sep 23, 2026, 12:09 AM UTC.