M2.3 earthquake 6 km W of Cobb, California

Magnitude

2.3 (md), micro

Local time

Sat, Apr 3, 1982, 10:16 AM PST

UTC

1982-04-03 18:16:28 UTC

Depth

3.5 km (2.2 mi), shallow

Epicenter

38.819° N, 122.794° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 1.3 km in depth

Magnitude uncertainty

±0.99

Depth from

From location

Station coverage gap

124°

Stations used

8

• Cobb, CaliforniaPopulation 1,778. Forecast6 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast21 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast43 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast668 kmNW

After

1. 2.36 km WSW of Cobb, CaliforniaSat, Apr 3, 1:33 PM PST · 16243 days ago · 3 km deep · 1 km away
2. 2.85 km SE of Talmage, CaliforniaSat, Apr 3, 7:18 PM PST · 16243 days ago · 8 km deep · 42 km away
3. 1.75 km ENE of Rohnert Park, CaliforniaMon, Apr 5, 6:08 AM PST · 16241 days ago · 7 km deep · 54 km away
4. 2.127 km SE of Covelo, CaliforniaMon, Apr 5, 12:40 PM PST · 16241 days ago · 4 km deep · 89 km away
5. 2.523 km SE of Covelo, CaliforniaMon, Apr 5, 12:42 PM PST · 16241 days ago · 4 km deep · 93 km away
6. 3.06 km ENE of Brooktrails, CaliforniaWed, Apr 7, 7:54 PM PST · 16239 days ago · 8 km deep · 85 km away
7. 2.58 km ENE of Talmage, CaliforniaThu, Apr 8, 4:22 AM PST · 16238 days ago · 43 km deep · 45 km away
8. 1.96 km W of Cobb, CaliforniaThu, Apr 8, 10:36 AM PST · 16238 days ago · 2 km deep · 0 km away
9. 1.77 km SE of Hopland, CaliforniaThu, Apr 8, 8:30 PM PST · 16238 days ago · 2 km deep · 25 km away
10. 1.91 km SE of Larkfield-Wikiup, CaliforniaThu, Apr 8, 8:35 PM PST · 16238 days ago · 5 km deep · 35 km away
11. 1.64 km NNE of Calistoga, CaliforniaFri, Apr 9, 5:19 PM PST · 16237 days ago · 1 km deep · 31 km away
12. 2.65 km WNW of Princeton, CaliforniaFri, Apr 9, 5:29 PM PST · 16237 days ago · 11 km deep · 92 km away
13. 1.67 km WSW of Cobb, CaliforniaSat, Apr 10, 8:53 AM PST · 16236 days ago · 2 km deep · 2 km away
14. 1.66 km W of Cobb, CaliforniaSun, Apr 11, 7:22 AM PST · 16235 days ago · 3 km deep · 0 km away
15. 1.99 km NE of Cloverdale, CaliforniaSun, Apr 11, 7:54 AM PST · 16235 days ago · 11 km deep · 14 km away
16. 2.98 km ESE of Talmage, CaliforniaSun, Apr 11, 8:07 PM PST · 16235 days ago · 9 km deep · 40 km away
17. 2.13 km SE of Calpella, CaliforniaMon, Apr 12, 6:44 AM PST · 16234 days ago · 3 km deep · 54 km away
18. 2.33 km SE of Larkfield-Wikiup, CaliforniaMon, Apr 12, 8:10 AM PST · 16234 days ago · 5 km deep · 37 km away
19. 1.96 km W of Cobb, CaliforniaMon, Apr 12, 9:32 AM PST · 16234 days ago · 5 km deep · 1 km away
20. 2.83 km SE of Larkfield-Wikiup, CaliforniaMon, Apr 12, 12:04 PM PST · 16234 days ago · 6 km deep · 37 km away
21. 2.73 km SE of Larkfield-Wikiup, CaliforniaMon, Apr 12, 12:21 PM PST · 16234 days ago · 6 km deep · 37 km away
22. 2.72 km SE of Larkfield-Wikiup, CaliforniaMon, Apr 12, 1:52 PM PST · 16234 days ago · 5 km deep · 37 km away
23. 1.63 km ESE of Larkfield-Wikiup, CaliforniaTue, Apr 13, 5:34 AM PST · 16233 days ago · 7 km deep · 36 km away
24. 1.88 km WSW of Cobb, CaliforniaWed, Apr 14, 8:54 AM PST · 16232 days ago · 2 km deep · 3 km away
25. 1.714 km NNE of Angwin, CaliforniaWed, Apr 14, 9:25 AM PST · 16232 days ago · 3 km deep · 38 km away
26. 2.114 km N of Potter Valley, CaliforniaWed, Apr 14, 9:42 PM PST · 16232 days ago · 7 km deep · 75 km away
27. 2.07 km WSW of Cobb, CaliforniaThu, Apr 15, 3:39 AM PST · 16231 days ago · 0 km deep · 2 km away
28. 1.89 km ESE of Black Point-Green Point, CaliforniaThu, Apr 15, 5:04 AM PST · 16231 days ago · 8 km deep · 88 km away
29. 2.39 km SSE of Kelseyville, CaliforniaThu, Apr 15, 3:56 PM PST · 16231 days ago · -1 km deep · 9 km away
30. 2.69 km WSW of Cobb, CaliforniaThu, Apr 15, 11:47 PM PST · 16230 days ago · 2 km deep · 4 km away
31. 2.23 km E of Napa, CaliforniaFri, Apr 16, 10:15 AM PST · 16230 days ago · 3 km deep · 74 km away
32. 1.77 km WSW of Cobb, CaliforniaFri, Apr 16, 7:43 PM PST · 16230 days ago · 1 km deep · 2 km away
33. 1.74 km SE of Clear Lake Riviera, CaliforniaSat, Apr 17, 5:16 AM PST · 16229 days ago · 3 km deep · 16 km away
34. 2.06 km W of Cobb, CaliforniaSat, Apr 17, 3:10 PM PST · 16229 days ago · 4 km deep · 0 km away
35. 2.19 km WSW of Cobb, CaliforniaSun, Apr 18, 3:46 PM PST · 16228 days ago · 2 km deep · 3 km away
36. 1.96 km SSW of Calistoga, CaliforniaSun, Apr 18, 5:23 PM PST · 16228 days ago · 5 km deep · 36 km away
37. 2.24 km N of Port Costa, CaliforniaTue, Apr 20, 4:08 PM PST · 16226 days ago · 2 km deep · 98 km away
38. 1.818 km NNE of Upper Lake, CaliforniaWed, Apr 21, 8:05 AM PST · 16225 days ago · 4 km deep · 54 km away
39. 2.35 km W of Cobb, CaliforniaWed, Apr 21, 5:07 PM PST · 16225 days ago · 1 km deep · 1 km away
40. 1.97 km WSW of Cobb, CaliforniaFri, Apr 23, 5:07 PM PST · 16223 days ago · -1 km deep · 2 km away
41. 1.510 km SSW of Kelseyville, CaliforniaFri, Apr 23, 9:02 PM PST · 16223 days ago · 2 km deep · 13 km away
42. 2.48 km NNE of Comptche, CaliforniaSat, Apr 24, 10:06 AM PST · 16222 days ago · 5 km deep · 87 km away
43. 1.621 km ENE of Potter Valley, CaliforniaSat, Apr 24, 8:58 PM PST · 16222 days ago · 15 km deep · 67 km away
44. 2.022 km ENE of Potter Valley, CaliforniaSat, Apr 24, 9:12 PM PST · 16222 days ago · 13 km deep · 67 km away
45. 1.522 km NE of Potter Valley, CaliforniaSun, Apr 25, 9:09 AM PDT · 16221 days ago · 12 km deep · 75 km away
46. 1.5Northern CaliforniaMon, Apr 26, 12:28 PM PDT · 16220 days ago · 2 km deep · 21 km away
47. 2.34 km WSW of Cobb, CaliforniaMon, Apr 26, 1:30 PM PDT · 16220 days ago · 1 km deep · 3 km away
48. 1.92 km SSW of Cobb, CaliforniaMon, Apr 26, 1:35 PM PDT · 16220 days ago · -1 km deep · 5 km away
49. 2.616 km ESE of Hidden Valley Lake, CaliforniaMon, Apr 26, 2:02 PM PDT · 16220 days ago · 4 km deep · 37 km away
50. 1.924 km W of Stonyford, CaliforniaTue, Apr 27, 5:03 AM PDT · 16219 days ago · 8 km deep · 62 km away
51. 1.74 km NNE of Clearlake, CaliforniaTue, Apr 27, 3:11 PM PDT · 16219 days ago · 0 km deep · 26 km away
52. 1.96 km NNE of Clearlake, CaliforniaTue, Apr 27, 9:05 PM PDT · 16219 days ago · 0 km deep · 27 km away
53. 1.57 km W of Cobb, CaliforniaThu, Apr 29, 4:13 AM PDT · 16217 days ago · 4 km deep · 2 km away
54. 1.66 km WSW of Calistoga, CaliforniaThu, Apr 29, 10:07 PM PDT · 16217 days ago · 4 km deep · 31 km away
55. 2.124 km NE of Potter Valley, CaliforniaFri, Apr 30, 3:29 AM PDT · 16216 days ago · 9 km deep · 76 km away
56. 1.98 km NNW of Redwood Valley, CaliforniaSat, May 1, 9:03 AM PDT · 16215 days ago · 7 km deep · 69 km away
57. 2.26 km W of Cobb, CaliforniaSat, May 1, 9:12 PM PDT · 16215 days ago · 4 km deep · 0 km away
58. 1.80 km S of Saint Helena, CaliforniaSun, May 2, 9:43 AM PDT · 16214 days ago · 8 km deep · 45 km away
59. 2.412 km SE of Hidden Valley Lake, CaliforniaSun, May 2, 3:11 PM PDT · 16214 days ago · 1 km deep · 31 km away
60. 1.612 km SE of Hidden Valley Lake, CaliforniaSun, May 2, 9:28 PM PDT · 16214 days ago · -1 km deep · 30 km away

The first 60 of 112.

Before

1. 1.77 km WSW of Cobb, CaliforniaSat, Apr 3, 8:30 AM PST · 16243 days ago · -1 km deep · 2 km away
2. 2.17 km W of Cobb, CaliforniaFri, Apr 2, 10:34 PM PST · 16243 days ago · 0 km deep · 1 km away
3. 1.64 km W of Cobb, CaliforniaFri, Apr 2, 10:32 AM PST · 16244 days ago · 4 km deep · 2 km away
4. 1.7Northern CaliforniaFri, Apr 2, 6:45 AM PST · 16244 days ago · 8 km deep · 7 km away
5. 1.84 km S of Cobb, CaliforniaFri, Apr 2, 4:52 AM PST · 16244 days ago · 0 km deep · 7 km away
6. 1.925 km SE of Covelo, CaliforniaThu, Apr 1, 12:37 PM PST · 16245 days ago · 5 km deep · 91 km away
7. 1.86 km WSW of Cobb, CaliforniaThu, Apr 1, 11:29 AM PST · 16245 days ago · 0 km deep · 1 km away
8. 1.86 km WSW of Cobb, CaliforniaTue, Mar 30, 5:01 AM PST · 16247 days ago · 3 km deep · 1 km away
9. 1.77 km N of Geyserville, CaliforniaMon, Mar 29, 9:37 PM PST · 16248 days ago · 5 km deep · 12 km away
10. 1.63 km E of Santa Rosa, CaliforniaMon, Mar 29, 11:49 AM PST · 16248 days ago · 8 km deep · 43 km away
11. 1.79 km WSW of Cobb, CaliforniaMon, Mar 29, 10:47 AM PST · 16248 days ago · 2 km deep · 3 km away
12. 1.54 km WSW of Cobb, CaliforniaSat, Mar 27, 6:42 PM PST · 16250 days ago · 2 km deep · 3 km away
13. 1.56 km W of Cobb, CaliforniaSat, Mar 27, 3:07 AM PST · 16250 days ago · 3 km deep · 1 km away
14. 1.57 km W of Cobb, CaliforniaThu, Mar 25, 11:00 AM PST · 16252 days ago · 3 km deep · 2 km away
15. 1.724 km WNW of Elk Creek, CaliforniaWed, Mar 24, 11:30 PM PST · 16252 days ago · 4 km deep · 95 km away
16. 2.37 km WSW of Cobb, CaliforniaWed, Mar 24, 7:13 PM PST · 16253 days ago · 1 km deep · 2 km away
17. 1.87 km WSW of Cobb, CaliforniaWed, Mar 24, 6:39 PM PST · 16253 days ago · 1 km deep · 3 km away
18. 2.37 km WSW of Cobb, CaliforniaWed, Mar 24, 6:30 PM PST · 16253 days ago · 1 km deep · 2 km away
19. 3.47 km WSW of Cobb, CaliforniaWed, Mar 24, 6:27 PM PST · 16253 days ago · 0 km deep · 2 km away
20. 2.825 km WNW of Elk Creek, CaliforniaWed, Mar 24, 4:33 PM PST · 16253 days ago · 0 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1073464. Read Tue, Sep 22, 2026, 5:27 PM UTC.