M1.5 earthquake 6 km W of Cobb, CA

Magnitude

1.5 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Aug 18, 2026, 6:25 AM PDT

UTC

2026-08-18 13:25:02 UTC

Depth

2.6 km (1.6 mi), shallow

Epicenter

38.831° N, 122.791° W

Region

California

Tsunami flag

No

Status

Automatic solution, may be revised

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

87°

Stations used

30

• Cobb, CaliforniaPopulation 1,778. Forecast6 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast20 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast44 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast669 kmNW

After

1. 1.511 km N of Redwood Valley, CATue, Aug 18, 6:33 AM PDT · 46 days ago · 8 km deep · 70 km away
2. 1.67 km W of Cobb, CATue, Aug 18, 9:07 AM PDT · 46 days ago · 2 km deep · 1 km away
3. 1.56 km WNW of Cobb, CATue, Aug 18, 8:03 PM PDT · 46 days ago · 2 km deep · 1 km away
4. 1.86 km WNW of The Geysers, CAWed, Aug 19, 2:22 AM PDT · 45 days ago · 3 km deep · 4 km away
5. 1.68 km WNW of Cobb, CAWed, Aug 19, 9:08 AM PDT · 45 days ago · 2 km deep · 2 km away
6. 1.89 km NW of The Geysers, CAWed, Aug 19, 1:33 PM PDT · 45 days ago · 2 km deep · 4 km away
7. 2.010 km WNW of The Geysers, CAWed, Aug 19, 2:44 PM PDT · 45 days ago · 2 km deep · 6 km away
8. 2.08 km WNW of Cobb, CAWed, Aug 19, 2:55 PM PDT · 45 days ago · 2 km deep · 2 km away
9. 2.32 km N of The Geysers, CAWed, Aug 19, 9:05 PM PDT · 45 days ago · 1 km deep · 5 km away
10. 1.63 km WNW of Anderson Springs, CAThu, Aug 20, 2:33 AM PDT · 44 days ago · 2 km deep · 8 km away
11. 1.819 km NE of Upper Lake, CAThu, Aug 20, 1:09 PM PDT · 44 days ago · 6 km deep · 52 km away
12. 1.68 km ESE of Cloverdale, CAThu, Aug 20, 3:29 PM PDT · 44 days ago · 5 km deep · 14 km away
13. 1.78 km NW of Redwood Valley, CAThu, Aug 20, 7:40 PM PDT · 44 days ago · 7 km deep · 68 km away
14. 1.78 km ESE of Cloverdale, CAThu, Aug 20, 9:09 PM PDT · 44 days ago · 7 km deep · 14 km away
15. 1.84 km ENE of Saint Helena, CAThu, Aug 20, 9:19 PM PDT · 44 days ago · 8 km deep · 47 km away
16. 1.97 km ESE of Williams, CAThu, Aug 20, 10:06 PM PDT · 44 days ago · 20 km deep · 71 km away · felt by 1
17. 1.59 km WNW of Cobb, CASat, Aug 22, 3:21 AM PDT · 42 days ago · 2 km deep · 3 km away
18. 1.63 km SE of The Geysers, CASat, Aug 22, 10:26 AM PDT · 42 days ago · 3 km deep · 10 km away
19. 1.518 km SE of Lake Pillsbury, CASat, Aug 22, 11:55 PM PDT · 42 days ago · 4 km deep · 53 km away
20. 2.610 km N of Lake Pillsbury, CASun, Aug 23, 2:37 AM PDT · 41 days ago · 12 km deep · 75 km away
21. 1.810 km N of Lake Pillsbury, CASun, Aug 23, 3:28 AM PDT · 41 days ago · 11 km deep · 75 km away
22. 1.56 km WNW of Cobb, CASun, Aug 23, 10:25 AM PDT · 41 days ago · 2 km deep · 1 km away
23. 1.511 km N of Redwood Valley, CASun, Aug 23, 6:10 PM PDT · 41 days ago · 8 km deep · 70 km away
24. 1.75 km NNW of The Geysers, CAMon, Aug 24, 5:09 AM PDT · 40 days ago · 2 km deep · 1 km away
25. 2.49 km WNW of The Geysers, CAMon, Aug 24, 5:22 PM PDT · 40 days ago · 2 km deep · 5 km away
26. 1.69 km NW of Redwood Valley, CAMon, Aug 24, 6:34 PM PDT · 40 days ago · 7 km deep · 69 km away
27. 1.86 km W of Cobb, CATue, Aug 25, 4:28 AM PDT · 39 days ago · 2 km deep · 0 km away
28. 2.011 km WNW of Redwood Valley, CATue, Aug 25, 5:05 AM PDT · 39 days ago · 3 km deep · 70 km away
29. 1.96 km NW of The Geysers, CATue, Aug 25, 3:38 PM PDT · 39 days ago · 3 km deep · 3 km away
30. 1.97 km NW of The Geysers, CATue, Aug 25, 6:57 PM PDT · 39 days ago · 2 km deep · 2 km away
31. 1.76 km W of Cobb, CAWed, Aug 26, 7:44 AM PDT · 38 days ago · 2 km deep · 1 km away
32. 1.96 km NNW of The Geysers, CAWed, Aug 26, 7:46 AM PDT · 38 days ago · 2 km deep · 1 km away · felt by 1
33. 1.93 km SW of Anderson Springs, CAWed, Aug 26, 10:28 AM PDT · 38 days ago · 1 km deep · 10 km away
34. 2.010 km E of Cloverdale, CAWed, Aug 26, 9:29 PM PDT · 38 days ago · 6 km deep · 11 km away
35. 1.53 km SW of Anderson Springs, CAThu, Aug 27, 12:53 AM PDT · 37 days ago · 2 km deep · 10 km away
36. 1.81 km NE of The Geysers, CAThu, Aug 27, 11:58 AM PDT · 37 days ago · 1 km deep · 6 km away
37. 2.22 km NE of The Geysers, CAThu, Aug 27, 12:06 PM PDT · 37 days ago · 2 km deep · 7 km away
38. 1.56 km NNW of The Geysers, CAThu, Aug 27, 8:12 PM PDT · 37 days ago · 3 km deep · 1 km away
39. 1.711 km N of Redwood Valley, CAThu, Aug 27, 9:45 PM PDT · 37 days ago · 7 km deep · 70 km away
40. 2.46 km N of Redwood Valley, CAFri, Aug 28, 5:15 AM PDT · 36 days ago · 6 km deep · 65 km away · felt by 13
41. 1.614 km ESE of Hidden Valley Lake, CAFri, Aug 28, 9:44 AM PDT · 36 days ago · 7 km deep · 34 km away
42. 1.98 km NW of Redwood Valley, CAFri, Aug 28, 4:52 PM PDT · 36 days ago · 8 km deep · 68 km away
43. 1.86 km NW of The Geysers, CAFri, Aug 28, 5:09 PM PDT · 36 days ago · 2 km deep · 2 km away
44. 1.86 km ESE of Santa Rosa, CAFri, Aug 28, 5:42 PM PDT · 36 days ago · 10 km deep · 47 km away
45. 1.73 km S of Redwood Valley, CASat, Aug 29, 3:01 AM PDT · 35 days ago · 4 km deep · 57 km away
46. 1.77 km ESE of Cloverdale, CASat, Aug 29, 2:52 PM PDT · 35 days ago · 6 km deep · 14 km away
47. 1.711 km ESE of Angwin, CASat, Aug 29, 3:53 PM PDT · 35 days ago · 6 km deep · 51 km away
48. 2.16 km NW of The Geysers, CASun, Aug 30, 1:35 AM PDT · 34 days ago · 3 km deep · 3 km away · felt by 1
49. 1.98 km SE of Soda Bay, CASun, Aug 30, 5:02 AM PDT · 34 days ago · 2 km deep · 14 km away · felt by 11
50. 1.615 km ESE of Navarro Head, CATue, Sep 1, 4:07 AM PDT · 32 days ago · 5 km deep · 79 km away
51. 2.015 km W of Ukiah, CATue, Sep 1, 10:01 AM PDT · 32 days ago · 4 km deep · 62 km away
52. 1.52 km NNW of The Geysers, CATue, Sep 1, 1:05 PM PDT · 32 days ago · 3 km deep · 5 km away
53. 2.42 km N of Middletown, CATue, Sep 1, 8:49 PM PDT · 32 days ago · 5 km deep · 17 km away · felt by 3
54. 1.94 km SSE of Cloverdale, CAWed, Sep 2, 2:45 AM PDT · 31 days ago · 4 km deep · 19 km away · felt by 2
55. 1.511 km ENE of Hidden Valley Lake, CAWed, Sep 2, 5:27 AM PDT · 31 days ago · 8 km deep · 31 km away
56. 1.67 km WNW of Cobb, CAWed, Sep 2, 12:33 PM PDT · 31 days ago · 2 km deep · 1 km away
57. 1.68 km ESE of Cloverdale, CAThu, Sep 3, 7:26 AM PDT · 30 days ago · 7 km deep · 14 km away
58. 2.05 km E of Williams, CAThu, Sep 3, 8:00 AM PDT · 30 days ago · 21 km deep · 70 km away
59. 2.15 km ENE of Willits, CAThu, Sep 3, 8:05 AM PDT · 30 days ago · 1 km deep · 79 km away
60. 2.15 km ENE of Willits, CAThu, Sep 3, 8:52 AM PDT · 30 days ago · 0 km deep · 79 km away · felt by 1

The first 60 of 192.

Before

1. 1.88 km NW of Redwood Valley, CATue, Aug 18, 3:35 AM PDT · 46 days ago · 7 km deep · 68 km away
2. 2.03 km ESE of The Geysers, CAMon, Aug 17, 11:47 PM PDT · 47 days ago · 1 km deep · 9 km away · felt by 1
3. 1.57 km W of Cobb, CAMon, Aug 17, 3:29 PM PDT · 47 days ago · 2 km deep · 1 km away
4. 1.56 km NW of The Geysers, CAMon, Aug 17, 4:51 AM PDT · 47 days ago · 3 km deep · 1 km away
5. 1.79 km ESE of Lake Pillsbury, CASun, Aug 16, 8:47 PM PDT · 48 days ago · 7 km deep · 60 km away
6. 1.86 km W of Cobb, CASun, Aug 16, 2:31 PM PDT · 48 days ago · 2 km deep · 0 km away
7. 1.66 km WNW of Cobb, CASun, Aug 16, 11:06 AM PDT · 48 days ago · 2 km deep · 1 km away
8. 1.98 km ESE of Cloverdale, CASun, Aug 16, 4:14 AM PDT · 48 days ago · 6 km deep · 14 km away
9. 1.68 km NW of Redwood Valley, CASat, Aug 15, 8:51 PM PDT · 49 days ago · 7 km deep · 68 km away
10. 2.15 km NNW of The Geysers, CASat, Aug 15, 1:41 PM PDT · 49 days ago · 3 km deep · 1 km away
11. 1.712 km ESE of Willits, CASat, Aug 15, 8:35 AM PDT · 49 days ago · 7 km deep · 71 km away
12. 1.610 km WNW of The Geysers, CASat, Aug 15, 2:25 AM PDT · 49 days ago · 3 km deep · 5 km away
13. 1.64 km W of Cobb, CAFri, Aug 14, 2:24 PM PDT · 50 days ago · 2 km deep · 2 km away
14. 1.59 km WNW of The Geysers, CAFri, Aug 14, 6:35 AM PDT · 50 days ago · 2 km deep · 5 km away
15. 1.78 km NW of Redwood Valley, CAFri, Aug 14, 3:22 AM PDT · 50 days ago · 7 km deep · 68 km away
16. 1.98 km NW of Redwood Valley, CAFri, Aug 14, 2:03 AM PDT · 50 days ago · 7 km deep · 68 km away
17. 1.513 km SE of Middletown, CAThu, Aug 13, 5:41 PM PDT · 51 days ago · 4 km deep · 30 km away
18. 1.66 km WNW of Cobb, CAWed, Aug 12, 5:32 PM PDT · 52 days ago · 2 km deep · 1 km away
19. 1.77 km NW of The Geysers, CAWed, Aug 12, 4:35 AM PDT · 52 days ago · 3 km deep · 2 km away
20. 1.66 km NW of The Geysers, CAWed, Aug 12, 3:59 AM PDT · 52 days ago · 3 km deep · 3 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc75420577. Read Sat, Oct 3, 2026, 7:10 PM UTC.