M2.4 earthquake 7 km WSW of Cobb, California

Magnitude

2.4 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, Apr 19, 1990, 5:37 PM PDT

UTC

1990-04-20 00:37:19 UTC

Depth

-0.3 km (-0.2 mi), shallow

Epicenter

38.806° N, 122.803° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.10

Depth from

From location

Station coverage gap

37°

Stations used

32

• Cobb, CaliforniaPopulation 1,778. Forecast7 kmWSW
• Healdsburg, CaliforniaPopulation 11,742. Forecast22 kmNNE
• Santa Rosa, CaliforniaPopulation 178,127. Forecast41 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast667 kmNW

After

1. 1.86 km NNW of Green Valley, CaliforniaFri, Apr 20, 8:23 AM PDT · 13316 days ago · 8 km deep · 78 km away
2. 1.95 km E of Elk Creek, CaliforniaFri, Apr 20, 10:05 AM PDT · 13316 days ago · 42 km deep · 93 km away
3. 1.77 km NNW of Green Valley, CaliforniaFri, Apr 20, 10:22 PM PDT · 13315 days ago · 9 km deep · 76 km away
4. 2.114 km NNW of Moskowite Corner, CaliforniaSat, Apr 21, 12:39 AM PDT · 13315 days ago · 2 km deep · 54 km away
5. 1.67 km W of Cobb, CaliforniaSat, Apr 21, 2:03 AM PDT · 13315 days ago · 4 km deep · 1 km away
6. 1.86 km E of Santa Rosa, CaliforniaSat, Apr 21, 12:51 PM PDT · 13315 days ago · 8 km deep · 44 km away
7. 1.86 km W of Cobb, CaliforniaSun, Apr 22, 12:10 AM PDT · 13314 days ago · 4 km deep · 2 km away
8. 1.69 km W of Cobb, CaliforniaSun, Apr 22, 12:25 AM PDT · 13314 days ago · -1 km deep · 3 km away
9. 1.513 km ESE of Hidden Valley Lake, CaliforniaSun, Apr 22, 6:14 AM PDT · 13314 days ago · 8 km deep · 34 km away
10. 3.35 km W of Cobb, CaliforniaSun, Apr 22, 9:16 AM PDT · 13314 days ago · 1 km deep · 2 km away
11. 2.56 km WSW of Cobb, CaliforniaSun, Apr 22, 9:20 AM PDT · 13314 days ago · 0 km deep · 1 km away
12. 2.06 km W of Cobb, CaliforniaSun, Apr 22, 9:28 AM PDT · 13314 days ago · 2 km deep · 2 km away
13. 1.66 km W of Cobb, CaliforniaSun, Apr 22, 10:40 AM PDT · 13314 days ago · 1 km deep · 2 km away
14. 2.17 km WSW of Cobb, CaliforniaSun, Apr 22, 4:51 PM PDT · 13314 days ago · 2 km deep · 1 km away
15. 2.212 km WSW of Hopland, CaliforniaSun, Apr 22, 4:53 PM PDT · 13314 days ago · -1 km deep · 41 km away
16. 2.07 km W of Cobb, CaliforniaMon, Apr 23, 9:00 AM PDT · 13313 days ago · 0 km deep · 3 km away
17. 1.67 km W of Cobb, CaliforniaMon, Apr 23, 7:45 PM PDT · 13313 days ago · 0 km deep · 2 km away
18. 1.66 km W of Cobb, CaliforniaTue, Apr 24, 8:46 PM PDT · 13311 days ago · 1 km deep · 1 km away
19. 2.38 km WNW of Cobb, CaliforniaTue, Apr 24, 8:47 PM PDT · 13311 days ago · 2 km deep · 4 km away
20. 1.55 km SW of Cobb, CaliforniaTue, Apr 24, 11:44 PM PDT · 13311 days ago · 0 km deep · 3 km away
21. 2.014 km SE of Hidden Valley Lake, CaliforniaWed, Apr 25, 2:57 AM PDT · 13311 days ago · 7 km deep · 33 km away
22. 1.66 km W of Cobb, CaliforniaWed, Apr 25, 10:23 AM PDT · 13311 days ago · 3 km deep · 2 km away
23. 1.76 km W of Cobb, CaliforniaWed, Apr 25, 4:05 PM PDT · 13311 days ago · 0 km deep · 2 km away
24. 1.612 km ENE of Cloverdale, CaliforniaWed, Apr 25, 8:06 PM PDT · 13311 days ago · 1 km deep · 7 km away
25. 1.521 km E of Potter Valley, CaliforniaThu, Apr 26, 3:52 AM PDT · 13310 days ago · 0 km deep · 61 km away
26. 1.66 km SW of Kenwood, CaliforniaFri, Apr 27, 12:47 AM PDT · 13309 days ago · 6 km deep · 51 km away
27. 1.88 km ENE of Potter Valley, CaliforniaFri, Apr 27, 6:43 AM PDT · 13309 days ago · 7 km deep · 62 km away
28. 2.16 km SW of Cobb, CaliforniaFri, Apr 27, 9:26 AM PDT · 13309 days ago · 2 km deep · 3 km away
29. 2.18 km W of Cobb, CaliforniaFri, Apr 27, 3:57 PM PDT · 13309 days ago · -1 km deep · 2 km away
30. 1.57 km W of Cobb, CaliforniaFri, Apr 27, 3:59 PM PDT · 13309 days ago · -1 km deep · 2 km away
31. 1.79 km W of Cobb, CaliforniaSat, Apr 28, 7:46 AM PDT · 13308 days ago · 1 km deep · 4 km away
32. 1.68 km WSW of Cobb, CaliforniaSat, Apr 28, 4:39 PM PDT · 13308 days ago · 1 km deep · 1 km away
33. 2.27 km WSW of Cobb, CaliforniaSun, Apr 29, 12:21 AM PDT · 13307 days ago · 1 km deep · 0 km away
34. 1.95 km S of Moskowite Corner, CaliforniaSun, Apr 29, 3:29 AM PDT · 13307 days ago · 6 km deep · 71 km away
35. 3.27 km WNW of Cobb, CaliforniaMon, Apr 30, 9:43 PM PDT · 13305 days ago · 1 km deep · 3 km away
36. 2.06 km W of Cobb, CaliforniaTue, May 1, 5:11 AM PDT · 13305 days ago · 4 km deep · 2 km away
37. 1.55 km SW of Cobb, CaliforniaTue, May 1, 9:37 AM PDT · 13305 days ago · 2 km deep · 4 km away
38. 2.413 km NNE of Brooktrails, CaliforniaTue, May 1, 1:49 PM PDT · 13305 days ago · 9 km deep · 97 km away
39. 1.77 km W of Cobb, CaliforniaWed, May 2, 10:37 AM PDT · 13304 days ago · 3 km deep · 1 km away
40. 1.6Northern CaliforniaWed, May 2, 11:09 PM PDT · 13303 days ago · 0 km deep · 80 km away
41. 1.73 km WSW of Cobb, CaliforniaThu, May 3, 1:46 AM PDT · 13303 days ago · 0 km deep · 4 km away
42. 1.7Northern CaliforniaThu, May 3, 5:26 AM PDT · 13303 days ago · 3 km deep · 2 km away
43. 2.46 km ESE of Roseland, CaliforniaFri, May 4, 9:23 PM PDT · 13301 days ago · 9 km deep · 47 km away
44. 1.79 km W of Cobb, CaliforniaSat, May 5, 5:29 AM PDT · 13301 days ago · 1 km deep · 3 km away
45. 2.04 km E of Lakeport, CaliforniaSat, May 5, 11:45 AM PDT · 13301 days ago · 11 km deep · 28 km away
46. 2.22 km SSW of Fulton, CaliforniaSat, May 5, 2:18 PM PDT · 13301 days ago · 4 km deep · 37 km away
47. 1.88 km W of Cobb, CaliforniaSat, May 5, 8:34 PM PDT · 13300 days ago · 1 km deep · 3 km away
48. 1.88 km W of Cobb, CaliforniaSat, May 5, 8:39 PM PDT · 13300 days ago · 0 km deep · 3 km away
49. 1.721 km E of Potter Valley, CaliforniaSun, May 6, 12:35 PM PDT · 13300 days ago · 3 km deep · 62 km away
50. 1.78 km W of Cobb, CaliforniaMon, May 7, 2:04 PM PDT · 13299 days ago · 4 km deep · 3 km away
51. 2.18 km W of Cobb, CaliforniaTue, May 8, 7:30 AM PDT · 13298 days ago · 1 km deep · 3 km away
52. 1.65 km SSW of Calistoga, CaliforniaWed, May 9, 10:46 AM PDT · 13297 days ago · 4 km deep · 34 km away
53. 1.82 km NE of Lower Lake, CaliforniaThu, May 10, 7:19 PM PDT · 13296 days ago · 6 km deep · 23 km away
54. 1.87 km W of Cobb, CaliforniaThu, May 10, 9:46 PM PDT · 13295 days ago · 3 km deep · 2 km away
55. 1.84 km ESE of Roseland, CaliforniaFri, May 11, 8:15 AM PDT · 13295 days ago · 7 km deep · 46 km away
56. 1.54 km ESE of Roseland, CaliforniaFri, May 11, 7:50 PM PDT · 13295 days ago · 7 km deep · 46 km away
57. 1.67 km W of Cobb, CaliforniaFri, May 11, 10:56 PM PDT · 13294 days ago · 4 km deep · 1 km away
58. 1.618 km NE of Upper Lake, CaliforniaFri, May 11, 11:22 PM PDT · 13294 days ago · 9 km deep · 54 km away
59. 1.618 km NE of Upper Lake, CaliforniaSat, May 12, 12:14 AM PDT · 13294 days ago · 9 km deep · 54 km away
60. 1.77 km W of Cobb, CaliforniaSat, May 12, 1:47 AM PDT · 13294 days ago · 4 km deep · 1 km away

The first 60 of 164.

Before

1. 2.25 km SW of Cobb, CaliforniaThu, Apr 19, 10:57 AM PDT · 13317 days ago · 0 km deep · 4 km away
2. 1.65 km E of Willits, CaliforniaThu, Apr 19, 3:58 AM PDT · 13317 days ago · 5 km deep · 80 km away
3. 1.55 km WNW of Cobb, CaliforniaThu, Apr 19, 3:08 AM PDT · 13317 days ago · 0 km deep · 4 km away
4. 1.75 km W of Cobb, CaliforniaWed, Apr 18, 8:47 PM PDT · 13317 days ago · 1 km deep · 1 km away
5. 2.45 km WSW of Cobb, CaliforniaWed, Apr 18, 3:56 PM PDT · 13318 days ago · 1 km deep · 2 km away
6. 1.77 km NW of Cobb, CaliforniaWed, Apr 18, 10:16 AM PDT · 13318 days ago · 2 km deep · 6 km away
7. 1.75 km SW of Cobb, CaliforniaWed, Apr 18, 3:31 AM PDT · 13318 days ago · 0 km deep · 3 km away
8. 1.69 km W of Cobb, CaliforniaWed, Apr 18, 12:23 AM PDT · 13318 days ago · 2 km deep · 4 km away
9. 1.69 km WNW of Cobb, CaliforniaTue, Apr 17, 3:42 PM PDT · 13319 days ago · 2 km deep · 4 km away
10. 1.95 km SW of Cobb, CaliforniaTue, Apr 17, 1:20 PM PDT · 13319 days ago · 1 km deep · 3 km away
11. 2.25 km SSW of Cobb, CaliforniaTue, Apr 17, 7:32 AM PDT · 13319 days ago · 1 km deep · 6 km away
12. 1.85 km WSW of Cobb, CaliforniaTue, Apr 17, 3:33 AM PDT · 13319 days ago · 1 km deep · 2 km away
13. 1.95 km WSW of Cobb, CaliforniaTue, Apr 17, 2:57 AM PDT · 13319 days ago · 1 km deep · 2 km away
14. 1.65 km WSW of Cobb, CaliforniaSun, Apr 15, 3:50 AM PDT · 13321 days ago · 1 km deep · 2 km away
15. 3.14 km WSW of Cobb, CaliforniaSat, Apr 14, 9:17 PM PDT · 13321 days ago · 1 km deep · 3 km away
16. 2.210 km NNE of Larkfield-Wikiup, CaliforniaSat, Apr 14, 4:35 PM PDT · 13322 days ago · 3 km deep · 25 km away
17. 1.66 km W of Cobb, CaliforniaSat, Apr 14, 2:32 PM PDT · 13322 days ago · 1 km deep · 1 km away
18. 2.0Northern CaliforniaSat, Apr 14, 11:38 AM PDT · 13322 days ago · 1 km deep · 0 km away
19. 1.86 km WSW of Cobb, CaliforniaFri, Apr 13, 3:32 PM PDT · 13323 days ago · -1 km deep · 1 km away
20. 1.79 km W of Cobb, CaliforniaThu, Apr 12, 6:45 PM PDT · 13324 days ago · 0 km deep · 2 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc156186. Read Sun, Oct 4, 2026, 2:48 PM UTC.