M2.1 earthquake 8 km W of Cobb, California

Magnitude

2.1 (md), micro

Local time

Tue, Jun 16, 1981, 1:40 AM PDT

UTC

1981-06-16 08:40:02 UTC

Depth

1.2 km (0.8 mi), shallow

Epicenter

38.820° N, 122.817° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.4 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

41°

Stations used

23

• Cobb, CaliforniaPopulation 1,778. Forecast8 kmW
• Clearlake, CaliforniaPopulation 15,182. Forecast23 kmSW
• Santa Rosa, CaliforniaPopulation 178,127. Forecast43 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast669 kmNW

After

1. 1.86 km W of Cobb, CaliforniaTue, Jun 16, 2:11 AM PDT · 16534 days ago · 3 km deep · 1 km away
2. 1.75 km SW of Cobb, CaliforniaTue, Jun 16, 4:51 AM PDT · 16534 days ago · -1 km deep · 5 km away
3. 1.76 km W of Cobb, CaliforniaWed, Jun 17, 7:28 AM PDT · 16533 days ago · 4 km deep · 2 km away
4. 2.35 km SW of Cobb, CAFri, Jun 19, 2:40 PM PDT · 16531 days ago · -1 km deep · 6 km away
5. 1.76 km W of Lower Lake, CaliforniaFri, Jun 19, 4:07 PM PDT · 16531 days ago · 3 km deep · 15 km away
6. 2.57 km WSW of Cobb, CaliforniaFri, Jun 19, 7:21 PM PDT · 16531 days ago · 1 km deep · 2 km away
7. 1.67 km WSW of Cobb, CaliforniaSat, Jun 20, 1:35 AM PDT · 16530 days ago · 3 km deep · 3 km away
8. 1.66 km W of Cobb, CaliforniaSun, Jun 21, 8:02 AM PDT · 16529 days ago · 4 km deep · 2 km away
9. 1.65 km NNE of Rohnert Park, CaliforniaMon, Jun 22, 2:05 AM PDT · 16528 days ago · 16 km deep · 50 km away
10. 3.518 km WSW of Williams, CaliforniaMon, Jun 22, 6:32 AM PDT · 16528 days ago · 12 km deep · 50 km away
11. 1.66 km W of Cobb, CaliforniaMon, Jun 22, 7:56 AM PDT · 16528 days ago · 0 km deep · 2 km away
12. 1.66 km W of Cobb, CaliforniaMon, Jun 22, 7:59 AM PDT · 16528 days ago · 1 km deep · 2 km away
13. 2.421 km WSW of Williams, CaliforniaMon, Jun 22, 2:15 PM PDT · 16528 days ago · -1 km deep · 48 km away
14. 1.77 km WSW of Cobb, CaliforniaMon, Jun 22, 4:59 PM PDT · 16528 days ago · 0 km deep · 2 km away
15. 1.97 km WSW of Cobb, CaliforniaTue, Jun 23, 10:18 AM PDT · 16527 days ago · -1 km deep · 3 km away
16. 2.34 km ESE of Clear Lake Riviera, CaliforniaWed, Jun 24, 10:00 AM PDT · 16526 days ago · -1 km deep · 18 km away
17. 1.79 km WSW of Cobb, CaliforniaThu, Jun 25, 1:31 AM PDT · 16525 days ago · 2 km deep · 2 km away
18. 1.69 km WSW of Cobb, CaliforniaThu, Jun 25, 9:54 AM PDT · 16525 days ago · 1 km deep · 2 km away
19. 1.87 km W of Cobb, CaliforniaThu, Jun 25, 4:54 PM PDT · 16525 days ago · 1 km deep · 1 km away
20. 1.87 km WSW of Cobb, CaliforniaThu, Jun 25, 10:30 PM PDT · 16524 days ago · 1 km deep · 2 km away
21. 2.56 km WSW of Cobb, CaliforniaFri, Jun 26, 6:26 AM PDT · 16524 days ago · 0 km deep · 4 km away
22. 1.78 km WSW of Cobb, CaliforniaFri, Jun 26, 12:13 PM PDT · 16524 days ago · 0 km deep · 2 km away
23. 2.56 km W of Cobb, CaliforniaFri, Jun 26, 3:15 PM PDT · 16524 days ago · 4 km deep · 2 km away
24. 1.66 km W of Cobb, CaliforniaFri, Jun 26, 7:13 PM PDT · 16524 days ago · 3 km deep · 2 km away
25. 1.68 km NE of Healdsburg, CaliforniaFri, Jun 26, 8:10 PM PDT · 16524 days ago · 6 km deep · 16 km away
26. 3.0Northern CaliforniaSat, Jun 27, 4:20 AM PDT · 16523 days ago · 4 km deep · 2 km away
27. 2.11 km SW of Stonyford, CaliforniaSat, Jun 27, 4:33 AM PDT · 16523 days ago · 7 km deep · 64 km away
28. 1.96 km W of Cobb, CaliforniaSat, Jun 27, 7:53 AM PDT · 16523 days ago · 4 km deep · 2 km away
29. 2.64 km WSW of Cobb, CaliforniaMon, Jun 29, 5:37 AM PDT · 16521 days ago · 3 km deep · 4 km away
30. 1.97 km WNW of Philo, CaliforniaMon, Jun 29, 11:29 AM PDT · 16521 days ago · 6 km deep · 68 km away
31. 1.76 km WSW of Cobb, CaliforniaTue, Jun 30, 12:17 AM PDT · 16520 days ago · 1 km deep · 2 km away
32. 2.05 km ESE of Talmage, CaliforniaTue, Jun 30, 4:55 AM PDT · 16520 days ago · 7 km deep · 42 km away
33. 1.62 km SE of Talmage, CaliforniaTue, Jun 30, 8:38 PM PDT · 16520 days ago · 5 km deep · 44 km away
34. 1.67 km NW of Redwood Valley, CaliforniaWed, Jul 1, 6:45 AM PDT · 16519 days ago · 7 km deep · 67 km away
35. 1.71 km NNW of Boonville, CaliforniaThu, Jul 2, 7:32 PM PDT · 16518 days ago · 4 km deep · 53 km away
36. 2.111 km S of Comptche, CaliforniaFri, Jul 3, 4:51 AM PDT · 16517 days ago · 4 km deep · 75 km away
37. 1.96 km W of Stonyford, CaliforniaFri, Jul 3, 2:33 PM PDT · 16517 days ago · 0 km deep · 63 km away
38. 2.06 km SW of Cobb, CaliforniaFri, Jul 3, 6:13 PM PDT · 16517 days ago · 1 km deep · 5 km away
39. 2.24 km W of Stonyford, CaliforniaFri, Jul 3, 8:20 PM PDT · 16517 days ago · 3 km deep · 64 km away
40. 2.09 km WSW of Cobb, CaliforniaSat, Jul 4, 3:01 PM PDT · 16516 days ago · 2 km deep · 2 km away
41. 2.18 km W of Calistoga, CaliforniaSun, Jul 5, 2:42 PM PDT · 16515 days ago · 7 km deep · 29 km away
42. 1.75 km WNW of Potter Valley, CaliforniaSun, Jul 5, 7:08 PM PDT · 16515 days ago · -1 km deep · 66 km away
43. 1.67 km WSW of Cobb, CaliforniaMon, Jul 6, 6:09 AM PDT · 16514 days ago · 1 km deep · 3 km away
44. 1.73 km N of Larkfield-Wikiup, CaliforniaMon, Jul 6, 1:31 PM PDT · 16514 days ago · 6 km deep · 31 km away
45. 2.14 km NNE of Clearlake, CaliforniaMon, Jul 6, 4:38 PM PDT · 16514 days ago · 0 km deep · 27 km away
46. 2.13 km WSW of Redwood Valley, CaliforniaTue, Jul 7, 2:57 PM PDT · 16513 days ago · 2 km deep · 61 km away
47. 2.010 km E of Comptche, CaliforniaWed, Jul 8, 4:48 PM PDT · 16512 days ago · 6 km deep · 75 km away
48. 2.18 km NNW of Redwood Valley, CaliforniaWed, Jul 8, 8:56 PM PDT · 16512 days ago · 1 km deep · 68 km away
49. 1.818 km NE of Potter Valley, CaliforniaThu, Jul 9, 7:54 AM PDT · 16511 days ago · 7 km deep · 70 km away
50. 2.29 km WSW of Cobb, CaliforniaFri, Jul 10, 4:03 AM PDT · 16510 days ago · 1 km deep · 2 km away
51. 2.08 km NW of Redwood Valley, CaliforniaFri, Jul 10, 9:05 AM PDT · 16510 days ago · 2 km deep · 68 km away
52. 1.822 km NE of Potter Valley, CaliforniaFri, Jul 10, 9:11 PM PDT · 16510 days ago · 11 km deep · 72 km away
53. 1.87 km NNW of Redwood Valley, CaliforniaSat, Jul 11, 12:56 PM PDT · 16509 days ago · 5 km deep · 68 km away
54. 2.18 km NE of Hidden Valley Lake, CaliforniaSun, Jul 12, 3:31 PM PDT · 16508 days ago · 8 km deep · 29 km away
55. 1.54 km WSW of Cobb, CaliforniaSun, Jul 12, 5:16 PM PDT · 16508 days ago · 1 km deep · 5 km away
56. 1.919 km ENE of Potter Valley, CaliforniaSun, Jul 12, 10:08 PM PDT · 16507 days ago · 9 km deep · 62 km away
57. 1.824 km NE of Potter Valley, CaliforniaMon, Jul 13, 4:15 AM PDT · 16507 days ago · 12 km deep · 76 km away
58. 1.88 km NW of Redwood Valley, CaliforniaMon, Jul 13, 7:17 AM PDT · 16507 days ago · 3 km deep · 68 km away
59. 2.122 km WNW of Elk Creek, CaliforniaMon, Jul 13, 11:56 AM PDT · 16507 days ago · 6 km deep · 93 km away
60. 1.56 km W of Cobb, CaliforniaMon, Jul 13, 3:23 PM PDT · 16507 days ago · 3 km deep · 2 km away

The first 60 of 126.

Before

1. 1.73 km E of Windsor, CaliforniaMon, Jun 15, 9:48 AM PDT · 16535 days ago · 4 km deep · 31 km away
2. 1.6Northern CaliforniaSun, Jun 14, 7:18 PM PDT · 16536 days ago · 1 km deep · 2 km away
3. 1.724 km WNW of Elk Creek, CaliforniaSun, Jun 14, 3:04 PM PDT · 16536 days ago · 5 km deep · 93 km away
4. 2.15 km SW of Cobb, CaliforniaSun, Jun 14, 9:43 AM PDT · 16536 days ago · 1 km deep · 5 km away
5. 1.74 km S of Cobb, CaliforniaFri, Jun 12, 2:40 AM PDT · 16538 days ago · 1 km deep · 9 km away
6. 1.95 km NNE of Brooktrails, CaliforniaThu, Jun 11, 5:52 PM PDT · 16539 days ago · 7 km deep · 88 km away
7. 1.612 km N of Brooktrails, CaliforniaThu, Jun 11, 1:18 AM PDT · 16539 days ago · 8 km deep · 94 km away
8. 2.39 km WSW of Cobb, CaliforniaWed, Jun 10, 10:14 AM PDT · 16540 days ago · 2 km deep · 2 km away
9. 1.85 km WSW of Cobb, CaliforniaWed, Jun 10, 4:33 AM PDT · 16540 days ago · 1 km deep · 4 km away
10. 2.56 km WSW of Cobb, CaliforniaTue, Jun 9, 3:38 AM PDT · 16541 days ago · 4 km deep · 3 km away
11. 2.111 km SSE of Comptche, CaliforniaMon, Jun 8, 9:17 PM PDT · 16542 days ago · 3 km deep · 75 km away
12. 1.69 km WSW of Cobb, CaliforniaSat, Jun 6, 8:51 PM PDT · 16544 days ago · 2 km deep · 3 km away
13. 2.114 km NNW of Guinda, CaliforniaSat, Jun 6, 7:04 PM PDT · 16544 days ago · 8 km deep · 51 km away
14. 2.26 km WSW of Calistoga, CaliforniaSat, Jun 6, 6:22 AM PDT · 16544 days ago · 5 km deep · 33 km away
15. 1.78 km WSW of Cobb, CaliforniaFri, Jun 5, 9:23 AM PDT · 16545 days ago · 3 km deep · 2 km away
16. 1.79 km E of Hidden Valley Lake, CaliforniaFri, Jun 5, 2:14 AM PDT · 16545 days ago · 7 km deep · 31 km away
17. 1.69 km ESE of Willits, CaliforniaThu, Jun 4, 8:06 AM PDT · 16546 days ago · 8 km deep · 73 km away
18. 3.59 km ESE of Willits, CaliforniaThu, Jun 4, 5:23 AM PDT · 16546 days ago · 9 km deep · 74 km away
19. 2.015 km NNW of Guinda, CaliforniaTue, Jun 2, 7:10 AM PDT · 16548 days ago · 9 km deep · 52 km away
20. 1.66 km W of Cobb, CaliforniaSun, May 31, 8:22 PM PDT · 16550 days ago · 2 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1064604. Read Tue, Sep 22, 2026, 4:09 PM UTC.