M2.3 earthquake 13 km NNE of Brooktrails, California

Magnitude

2.3 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, Feb 25, 1979, 2:14 PM PST

UTC

1979-02-25 22:14:31 UTC

Depth

6.8 km (4.2 mi), shallow

Epicenter

39.562° N, 123.355° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 3.0 km horizontally, 1.0 km in depth

Magnitude uncertainty

±0.16

Depth from

From location

Station coverage gap

288°, poorly surrounded by stations

Stations used

7

• Brooktrails, CaliforniaPopulation 3,235. Forecast13 kmN
• Ukiah, CaliforniaPopulation 15,917. Forecast48 kmNNW
• Chico, CaliforniaPopulation 121,345. Forecast131 kmW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast763 kmNW

After

1. 2.86 km W of Cobb, CaliforniaSun, Feb 25, 6:17 PM PST · 17388 days ago · 3 km deep · 95 km away
2. 1.78 km WSW of Cobb, CaliforniaMon, Feb 26, 4:22 AM PST · 17387 days ago · 3 km deep · 97 km away
3. 2.3Northern CaliforniaMon, Feb 26, 10:33 PM PST · 17386 days ago · 4 km deep · 95 km away
4. 2.07 km ENE of Brooktrails, CaliforniaWed, Feb 28, 5:08 AM PST · 17385 days ago · 5 km deep · 12 km away
5. 2.46 km W of Cobb, CaliforniaThu, Mar 1, 12:57 PM PST · 17384 days ago · 4 km deep · 95 km away
6. 2.37 km W of Cobb, CaliforniaSat, Mar 3, 4:33 PM PST · 17382 days ago · 3 km deep · 96 km away
7. 2.06 km ESE of Willits, CaliforniaSun, Mar 4, 2:43 PM PST · 17381 days ago · 10 km deep · 20 km away
8. 1.87 km W of Cobb, CaliforniaMon, Mar 5, 12:47 PM PST · 17380 days ago · 0 km deep · 96 km away
9. 2.42 km ESE of Calpella, CaliforniaWed, Mar 7, 2:06 PM PST · 17378 days ago · 6 km deep · 41 km away
10. 3.213 km WNW of Brooktrails, CaliforniaThu, Mar 8, 12:13 AM PST · 17377 days ago · 22 km deep · 15 km away
11. 2.07 km NNW of Redwood Valley, CaliforniaThu, Mar 8, 3:30 PM PST · 17377 days ago · 7 km deep · 28 km away
12. 2.323 km NE of Potter Valley, CaliforniaThu, Mar 8, 6:59 PM PST · 17377 days ago · 10 km deep · 36 km away
13. 1.86 km WSW of Cobb, CaliforniaFri, Mar 9, 2:23 AM PST · 17376 days ago · 1 km deep · 97 km away
14. 2.68 km WSW of Cobb, CaliforniaFri, Mar 9, 4:45 PM PST · 17376 days ago · 3 km deep · 97 km away
15. 2.816 km NNE of Nice, CaliforniaSat, Mar 10, 5:30 AM PST · 17375 days ago · 7 km deep · 62 km away
16. 2.617 km NNE of Nice, CaliforniaSun, Mar 11, 8:31 AM PST · 17374 days ago · 4 km deep · 63 km away
17. 2.14 km WSW of Cobb, CaliforniaTue, Mar 13, 8:23 AM PST · 17372 days ago · 1 km deep · 98 km away
18. 1.916 km E of Potter Valley, CaliforniaFri, Mar 16, 2:27 PM PST · 17369 days ago · 2 km deep · 45 km away
19. 2.04 km WSW of Cobb, CaliforniaFri, Mar 16, 7:29 PM PST · 17369 days ago · 4 km deep · 98 km away
20. 2.110 km NNE of Brooktrails, CaliforniaSat, Mar 17, 11:06 AM PST · 17368 days ago · 8 km deep · 5 km away
21. 2.17 km W of Cobb, CaliforniaSat, Mar 17, 1:18 PM PST · 17368 days ago · 3 km deep · 96 km away
22. 2.13 km ESE of Calpella, CaliforniaSat, Mar 17, 8:05 PM PST · 17368 days ago · 6 km deep · 42 km away
23. 2.16 km WSW of Cobb, CaliforniaMon, Mar 19, 2:52 AM PST · 17366 days ago · 1 km deep · 97 km away
24. 2.86 km W of Cobb, CaliforniaMon, Mar 19, 2:59 AM PST · 17366 days ago · 3 km deep · 96 km away
25. 2.314 km SE of Alderpoint, CaliforniaTue, Mar 20, 1:18 AM PST · 17365 days ago · 12 km deep · 61 km away
26. 1.99 km SSE of Hopland, CaliforniaWed, Mar 21, 4:31 PM PST · 17364 days ago · 5 km deep · 78 km away
27. 1.74 km WSW of Cobb, CaliforniaWed, Mar 21, 5:59 PM PST · 17364 days ago · 1 km deep · 98 km away
28. 1.96 km N of Cloverdale, CaliforniaThu, Mar 22, 6:06 AM PST · 17363 days ago · 6 km deep · 83 km away
29. 2.06 km N of Cloverdale, CaliforniaThu, Mar 22, 6:12 AM PST · 17363 days ago · 5 km deep · 83 km away
30. 2.04 km SE of Benbow, CaliforniaSat, Mar 24, 9:07 AM PST · 17361 days ago · 16 km deep · 63 km away
31. 1.65 km ESE of Clearlake Oaks, CaliforniaSat, Mar 24, 9:37 AM PST · 17361 days ago · 2 km deep · 88 km away
32. 2.16 km W of Cobb, CaliforniaSat, Mar 24, 6:54 PM PST · 17361 days ago · 4 km deep · 95 km away
33. 1.98 km NNE of Hopland, CaliforniaSun, Mar 25, 4:50 AM PST · 17360 days ago · 2 km deep · 62 km away
34. 1.88 km NNE of Hopland, CaliforniaSun, Mar 25, 4:54 AM PST · 17360 days ago · 0 km deep · 62 km away
35. 2.319 km NE of Upper Lake, CaliforniaSun, Mar 25, 10:40 AM PST · 17360 days ago · 8 km deep · 57 km away
36. 1.86 km ENE of Brooktrails, CaliforniaMon, Mar 26, 1:54 PM PST · 17359 days ago · 4 km deep · 11 km away
37. 1.58 km WSW of Cobb, CaliforniaThu, Mar 29, 12:09 AM PST · 17356 days ago · 4 km deep · 97 km away
38. 1.69 km E of Willits, CaliforniaThu, Mar 29, 3:23 AM PST · 17356 days ago · 4 km deep · 20 km away
39. 1.65 km ENE of Lucerne, CaliforniaFri, Mar 30, 6:38 AM PST · 17355 days ago · 8 km deep · 73 km away
40. 1.71 km W of Benbow, CaliforniaSat, Mar 31, 6:03 AM PST · 17354 days ago · 19 km deep · 68 km away
41. 1.53 km ESE of Calpella, CaliforniaSun, Apr 1, 8:00 PM PST · 17353 days ago · 5 km deep · 42 km away
42. 1.75 km NE of Nice, CaliforniaSun, Apr 1, 11:43 PM PST · 17352 days ago · 9 km deep · 64 km away
43. 2.13 km ESE of Calpella, CaliforniaMon, Apr 2, 1:18 PM PST · 17352 days ago · 6 km deep · 41 km away
44. 2.17 km SSE of Potter Valley, CaliforniaMon, Apr 2, 1:18 PM PST · 17352 days ago · 41 km deep · 41 km away
45. 1.53 km ESE of Calpella, CaliforniaMon, Apr 2, 1:19 PM PST · 17352 days ago · 6 km deep · 41 km away
46. 1.710 km NNW of Potter Valley, CaliforniaTue, Apr 3, 9:26 AM PST · 17351 days ago · 4 km deep · 23 km away
47. 1.912 km NNW of Potter Valley, CaliforniaTue, Apr 3, 9:40 AM PST · 17351 days ago · 12 km deep · 22 km away
48. 1.64 km SSE of Hopland, CaliforniaTue, Apr 3, 3:18 PM PST · 17351 days ago · 7 km deep · 73 km away
49. 2.03 km ESE of Talmage, CaliforniaTue, Apr 3, 8:41 PM PST · 17351 days ago · 3 km deep · 53 km away
50. 1.95 km WSW of Cobb, CaliforniaWed, Apr 4, 10:16 AM PST · 17350 days ago · 0 km deep · 97 km away
51. 1.55 km WSW of Cobb, CaliforniaWed, Apr 4, 11:24 AM PST · 17350 days ago · 0 km deep · 97 km away
52. 1.87 km ENE of Leggett, CaliforniaThu, Apr 5, 6:31 AM PST · 17349 days ago · 8 km deep · 43 km away
53. 1.68 km SSW of Benbow, CaliforniaThu, Apr 5, 7:52 AM PST · 17349 days ago · 15 km deep · 64 km away
54. 1.97 km NE of Phillipsville, CaliforniaSat, Apr 7, 8:26 PM PST · 17347 days ago · -1 km deep · 83 km away
55. 1.66 km NE of Phillipsville, CaliforniaSat, Apr 7, 8:28 PM PST · 17347 days ago · -1 km deep · 83 km away
56. 2.17 km ENE of Phillipsville, CaliforniaThu, Apr 12, 3:48 AM PST · 17342 days ago · 24 km deep · 81 km away
57. 1.66 km WSW of Cobb, CaliforniaThu, Apr 12, 5:53 PM PST · 17342 days ago · 0 km deep · 97 km away
58. 2.68 km WSW of Cobb, CaliforniaSun, Apr 15, 5:02 AM PST · 17339 days ago · 4 km deep · 97 km away
59. 1.58 km WSW of Cobb, CaliforniaSun, Apr 15, 1:25 PM PST · 17339 days ago · 4 km deep · 97 km away
60. 1.95 km ESE of Clearlake Oaks, CaliforniaSun, Apr 15, 3:10 PM PST · 17339 days ago · 2 km deep · 89 km away

The first 60 of 67.

Before

1. 2.28 km W of Cobb, CaliforniaSun, Feb 25, 6:15 AM PST · 17388 days ago · 1 km deep · 96 km away
2. 1.99 km NE of Hopland, CaliforniaFri, Feb 23, 7:21 AM PST · 17390 days ago · 5 km deep · 63 km away
3. 1.77 km WSW of Cobb, CaliforniaMon, Feb 19, 12:43 AM PST · 17394 days ago · 2 km deep · 97 km away
4. 2.17 km W of Cobb, CaliforniaSat, Feb 17, 7:37 AM PST · 17396 days ago · 1 km deep · 96 km away
5. 2.58 km WSW of Cobb, CaliforniaFri, Feb 16, 9:39 AM PST · 17397 days ago · 2 km deep · 96 km away
6. 1.910 km NE of Willits, CaliforniaThu, Feb 15, 4:12 AM PST · 17398 days ago · 3 km deep · 13 km away
7. 2.46 km W of Cobb, CaliforniaThu, Feb 15, 1:50 AM PST · 17398 days ago · 0 km deep · 96 km away
8. 2.59 km NE of Myers Flat, CaliforniaWed, Feb 14, 11:09 AM PST · 17399 days ago · 20 km deep · 93 km away
9. 2.923 km NE of Willits, CaliforniaMon, Feb 12, 9:04 AM PST · 17401 days ago · 5 km deep · 19 km away
10. 1.610 km E of Willits, CaliforniaSun, Feb 11, 7:15 AM PST · 17402 days ago · 2 km deep · 20 km away
11. 1.74 km WSW of Cobb, CaliforniaFri, Feb 9, 5:18 PM PST · 17404 days ago · 1 km deep · 98 km away
12. 1.74 km WSW of Cobb, CaliforniaFri, Feb 9, 5:18 PM PST · 17404 days ago · 2 km deep · 98 km away
13. 1.97 km ENE of Hopland, CaliforniaThu, Feb 8, 8:11 AM PST · 17405 days ago · 5 km deep · 69 km away
14. 2.012 km NE of Brooktrails, CaliforniaThu, Feb 8, 7:33 AM PST · 17405 days ago · 7 km deep · 6 km away
15. 2.023 km N of Covelo, CaliforniaTue, Feb 6, 5:17 PM PST · 17407 days ago · 3 km deep · 50 km away
16. 1.56 km NE of Myers Flat, CaliforniaSun, Feb 4, 2:41 AM PST · 17409 days ago · 2 km deep · 93 km away
17. 2.57 km W of Cobb, CaliforniaSat, Feb 3, 11:49 AM PST · 17410 days ago · 4 km deep · 95 km away
18. 1.96 km NE of Myers Flat, CaliforniaThu, Feb 1, 10:16 PM PST · 17411 days ago · 5 km deep · 93 km away
19. 1.7Northern CaliforniaThu, Feb 1, 4:09 PM PST · 17412 days ago · 2 km deep · 93 km away
20. 1.52 km ENE of Clear Lake Riviera, CaliforniaTue, Jan 30, 10:49 PM PST · 17413 days ago · 3 km deep · 87 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1044808. Read Sun, Oct 4, 2026, 4:13 PM UTC.