M1.7 earthquake 6 km W of Cobb, California

Magnitude

1.7 (md), micro

Local time

Thu, Jan 18, 1979, 11:43 PM PST

UTC

1979-01-19 07:43:34 UTC

Depth

-0.1 km (-0.1 mi), shallow

Epicenter

38.820° N, 122.796° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

48°

Stations used

18

• 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. 1.58 km WSW of Cobb, CaliforniaFri, Jan 19, 4:11 AM PST · 17413 days ago · 1 km deep · 2 km away
2. 2.99 km WNW of Princeton, CaliforniaSun, Jan 21, 12:28 PM PST · 17411 days ago · 15 km deep · 90 km away
3. 1.67 km WSW of Cobb, CaliforniaMon, Jan 22, 9:27 PM PST · 17410 days ago · 2 km deep · 2 km away
4. 1.65 km W of Cobb, CaliforniaTue, Jan 23, 4:34 PM PST · 17409 days ago · 1 km deep · 1 km away
5. 1.87 km W of Cobb, CaliforniaWed, Jan 24, 3:32 AM PST · 17408 days ago · 4 km deep · 1 km away
6. 2.04 km NNW of Winters, CaliforniaWed, Jan 24, 7:26 PM PST · 17408 days ago · 2 km deep · 76 km away
7. 1.58 km ENE of Santa Rosa, CaliforniaThu, Jan 25, 11:37 PM PST · 17407 days ago · 0 km deep · 41 km away
8. 2.54 km SSE of Dunnigan, CaliforniaFri, Jan 26, 1:40 PM PST · 17406 days ago · 8 km deep · 73 km away
9. 2.08 km E of Willits, CaliforniaSat, Jan 27, 9:04 AM PST · 17405 days ago · 7 km deep · 76 km away
10. 1.68 km W of Cobb, CaliforniaSun, Jan 28, 12:12 PM PST · 17404 days ago · 1 km deep · 2 km away
11. 2.07 km W of Cobb, CaliforniaMon, Jan 29, 3:02 AM PST · 17403 days ago · 3 km deep · 1 km away
12. 3.08 km E of Willits, CaliforniaMon, Jan 29, 5:27 PM PST · 17403 days ago · 8 km deep · 76 km away
13. 2.68 km E of Willits, CaliforniaMon, Jan 29, 5:28 PM PST · 17403 days ago · 9 km deep · 76 km away
14. 2.06 km W of Cobb, CaliforniaMon, Jan 29, 7:14 PM PST · 17403 days ago · 4 km deep · 1 km away
15. 1.95 km ESE of Healdsburg, CaliforniaMon, Jan 29, 9:52 PM PST · 17403 days ago · 6 km deep · 24 km away
16. 1.67 km W of Cobb, CaliforniaTue, Jan 30, 7:27 AM PST · 17402 days ago · -1 km deep · 1 km away
17. 2.54 km WSW of Cobb, CaliforniaTue, Jan 30, 9:52 PM PST · 17402 days ago · 2 km deep · 3 km away
18. 1.52 km ENE of Clear Lake Riviera, CaliforniaTue, Jan 30, 10:49 PM PST · 17402 days ago · 3 km deep · 18 km away
19. 2.07 km NE of Inverness, CaliforniaFri, Feb 2, 5:22 PM PST · 17399 days ago · 0 km deep · 76 km away
20. 2.09 km S of Moskowite Corner, CaliforniaFri, Feb 2, 7:46 PM PST · 17399 days ago · 7 km deep · 73 km away
21. 2.57 km W of Cobb, CaliforniaSat, Feb 3, 11:49 AM PST · 17398 days ago · 4 km deep · 1 km away
22. 2.410 km SE of Dunnigan, CaliforniaSun, Feb 4, 7:28 AM PST · 17397 days ago · 9 km deep · 78 km away
23. 2.78 km WNW of Princeton, CaliforniaTue, Feb 6, 12:28 AM PST · 17396 days ago · 16 km deep · 90 km away
24. 2.012 km NE of Brooktrails, CaliforniaThu, Feb 8, 7:33 AM PST · 17393 days ago · 7 km deep · 90 km away
25. 1.97 km ENE of Hopland, CaliforniaThu, Feb 8, 8:11 AM PST · 17393 days ago · 5 km deep · 28 km away
26. 1.61 km WSW of Guinda, CaliforniaThu, Feb 8, 6:28 PM PST · 17393 days ago · 5 km deep · 51 km away
27. 1.74 km WSW of Cobb, CaliforniaFri, Feb 9, 5:18 PM PST · 17392 days ago · 2 km deep · 3 km away
28. 1.74 km WSW of Cobb, CaliforniaFri, Feb 9, 5:18 PM PST · 17392 days ago · 1 km deep · 3 km away
29. 1.610 km E of Willits, CaliforniaSun, Feb 11, 7:15 AM PST · 17390 days ago · 2 km deep · 75 km away
30. 2.923 km NE of Willits, CaliforniaMon, Feb 12, 9:04 AM PST · 17389 days ago · 5 km deep · 85 km away
31. 1.77 km ENE of Healdsburg, CaliforniaTue, Feb 13, 6:19 AM PST · 17388 days ago · 6 km deep · 20 km away
32. 2.46 km W of Cobb, CaliforniaThu, Feb 15, 1:50 AM PST · 17387 days ago · 0 km deep · 1 km away
33. 1.910 km NE of Willits, CaliforniaThu, Feb 15, 4:12 AM PST · 17386 days ago · 3 km deep · 83 km away
34. 2.58 km WSW of Cobb, CaliforniaFri, Feb 16, 9:39 AM PST · 17385 days ago · 2 km deep · 2 km away
35. 2.17 km W of Cobb, CaliforniaSat, Feb 17, 7:37 AM PST · 17384 days ago · 1 km deep · 1 km away
36. 1.77 km WSW of Cobb, CaliforniaMon, Feb 19, 12:43 AM PST · 17383 days ago · 2 km deep · 2 km away
37. 1.99 km NE of Hopland, CaliforniaFri, Feb 23, 7:21 AM PST · 17378 days ago · 5 km deep · 33 km away
38. 2.28 km W of Cobb, CaliforniaSun, Feb 25, 6:15 AM PST · 17376 days ago · 1 km deep · 2 km away
39. 2.313 km NNE of Brooktrails, CaliforniaSun, Feb 25, 2:14 PM PST · 17376 days ago · 7 km deep · 95 km away
40. 2.86 km W of Cobb, CaliforniaSun, Feb 25, 6:17 PM PST · 17376 days ago · 3 km deep · 0 km away
41. 1.78 km WSW of Cobb, CaliforniaMon, Feb 26, 4:22 AM PST · 17375 days ago · 3 km deep · 3 km away
42. 2.3Northern CaliforniaMon, Feb 26, 10:33 PM PST · 17375 days ago · 4 km deep · 0 km away
43. 2.07 km ENE of Brooktrails, CaliforniaWed, Feb 28, 5:08 AM PST · 17373 days ago · 5 km deep · 84 km away
44. 2.46 km W of Cobb, CaliforniaThu, Mar 1, 12:57 PM PST · 17372 days ago · 4 km deep · 1 km away
45. 1.86 km E of Woodland, CaliforniaFri, Mar 2, 1:00 AM PST · 17372 days ago · 12 km deep · 97 km away
46. 2.37 km W of Cobb, CaliforniaSat, Mar 3, 4:33 PM PST · 17370 days ago · 3 km deep · 2 km away
47. 2.06 km ESE of Willits, CaliforniaSun, Mar 4, 2:43 PM PST · 17369 days ago · 10 km deep · 76 km away
48. 2.32 km SSW of Monument Hills, CaliforniaSun, Mar 4, 8:38 PM PST · 17369 days ago · 9 km deep · 81 km away
49. 1.87 km W of Cobb, CaliforniaMon, Mar 5, 12:47 PM PST · 17368 days ago · 0 km deep · 2 km away
50. 2.42 km ESE of Calpella, CaliforniaWed, Mar 7, 2:06 PM PST · 17366 days ago · 6 km deep · 55 km away
51. 3.213 km WNW of Brooktrails, CaliforniaThu, Mar 8, 12:13 AM PST · 17366 days ago · 22 km deep · 98 km away
52. 2.07 km NNW of Redwood Valley, CaliforniaThu, Mar 8, 3:30 PM PST · 17365 days ago · 7 km deep · 69 km away
53. 2.323 km NE of Potter Valley, CaliforniaThu, Mar 8, 6:59 PM PST · 17365 days ago · 10 km deep · 76 km away
54. 1.86 km WSW of Cobb, CaliforniaFri, Mar 9, 2:23 AM PST · 17365 days ago · 1 km deep · 2 km away
55. 2.68 km WSW of Cobb, CaliforniaFri, Mar 9, 4:45 PM PST · 17364 days ago · 3 km deep · 3 km away
56. 2.816 km NNE of Nice, CaliforniaSat, Mar 10, 5:30 AM PST · 17363 days ago · 7 km deep · 48 km away
57. 2.617 km NNE of Nice, CaliforniaSun, Mar 11, 8:31 AM PST · 17362 days ago · 4 km deep · 48 km away
58. 1.711 km E of Lower Lake, CaliforniaTue, Mar 13, 7:18 AM PST · 17360 days ago · 15 km deep · 30 km away
59. 2.14 km WSW of Cobb, CaliforniaTue, Mar 13, 8:23 AM PST · 17360 days ago · 1 km deep · 3 km away
60. 2.38 km ENE of Lower Lake, CaliforniaTue, Mar 13, 10:19 AM PST · 17360 days ago · 9 km deep · 28 km away

The first 60 of 70.

Before

1. 2.76 km W of Cobb, CaliforniaThu, Jan 18, 9:54 PM PST · 17414 days ago · 0 km deep · 0 km away
2. 2.52 km SSW of Monument Hills, CaliforniaWed, Jan 17, 10:19 AM PST · 17415 days ago · 10 km deep · 81 km away
3. 1.76 km W of Cobb, CaliforniaFri, Jan 12, 11:38 PM PST · 17420 days ago · 4 km deep · 0 km away
4. 1.87 km W of Cobb, CaliforniaFri, Jan 12, 10:11 PM PST · 17420 days ago · 3 km deep · 1 km away
5. 1.66 km W of Cobb, CaliforniaWed, Jan 10, 12:54 PM PST · 17422 days ago · 4 km deep · 0 km away
6. 2.45 km E of Black Point-Green Point, CaliforniaTue, Jan 9, 8:57 PM PST · 17423 days ago · 12 km deep · 84 km away
7. 1.67 km W of Healdsburg, CaliforniaMon, Jan 8, 12:11 AM PST · 17425 days ago · 1 km deep · 26 km away
8. 1.927 km SE of Covelo, CaliforniaSun, Jan 7, 10:42 PM PST · 17425 days ago · 0 km deep · 89 km away
9. 1.51 km WSW of Moskowite Corner, CaliforniaWed, Jan 3, 8:45 AM PST · 17429 days ago · 12 km deep · 66 km away
10. 1.67 km WSW of Cobb, CaliforniaWed, Jan 3, 3:39 AM PST · 17429 days ago · 3 km deep · 3 km away
11. 2.07 km WSW of Cobb, CaliforniaMon, Jan 1, 8:19 AM PST · 17431 days ago · 1 km deep · 2 km away
12. 2.23 km W of Deer Park, CaliforniaSat, Dec 30, 1:14 AM PST · 17434 days ago · 8 km deep · 40 km away
13. 1.96 km W of Cobb, CaliforniaFri, Dec 29, 12:33 PM PST · 17434 days ago · 3 km deep · 0 km away
14. 1.98 km WSW of Cobb, CaliforniaFri, Dec 29, 11:25 AM PST · 17434 days ago · 1 km deep · 3 km away
15. 1.95 km ESE of Black Point-Green Point, CaliforniaFri, Dec 29, 1:19 AM PST · 17435 days ago · 5 km deep · 85 km away
16. 2.010 km SSE of Willits, CaliforniaThu, Dec 28, 10:28 PM PST · 17435 days ago · 4 km deep · 71 km away
17. 1.76 km W of Cobb, CaliforniaTue, Dec 26, 5:14 PM PST · 17437 days ago · 1 km deep · 1 km away
18. 1.67 km WSW of Cobb, CaliforniaTue, Dec 26, 2:49 PM PST · 17437 days ago · 2 km deep · 2 km away
19. 2.16 km E of Willits, CaliforniaMon, Dec 25, 10:44 AM PST · 17438 days ago · 1 km deep · 79 km away
20. 1.68 km WSW of Cobb, CaliforniaSun, Dec 24, 10:20 PM PST · 17439 days ago · 1 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1044249. Read Tue, Sep 22, 2026, 10:27 PM UTC.