California earthquakes

M1.9 earthquake 6 km W of Cobb, California

A magnitude 1.9 earthquake struck 6 km W of Cobb, California on Wed, Apr 30, 1980, 12:05 AM PDT (07:05 UTC), -1 km (-1 mi) below the surface.

A larger quake followed: M3.1 7 km WSW of Cobb, California. This one was a foreshock.

Cobb forecastMore in California

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.9 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1980-04-30 07:05:46 UTC
Depth
-1.0 km (-0.6 mi), shallow
Epicenter
38.831° N, 122.794° W
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Location uncertainty
About 0.8 km horizontally, 3.7 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
135°
Stations used
12

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 108 in the 60 days after this one and 73 in the 30 days before it.

After

  1. 2.47 km SE of Point Arena, California · 16956 days ago · 5 km deep · 72 km away
  2. 1.920 km SSE of Covelo, California · 16955 days ago · -1 km deep · 93 km away
  3. 2.04 km ENE of Potter Valley, California · 16955 days ago · 42 km deep · 60 km away
  4. 2.09 km ESE of Hidden Valley Lake, California · 16954 days ago · 9 km deep · 30 km away
  5. 2.17 km E of Willits, California · 16954 days ago · 6 km deep · 76 km away
  6. 2.025 km SE of Covelo, California · 16954 days ago · 5 km deep · 90 km away
  7. 1.71 km NW of Larkfield-Wikiup, California · 16954 days ago · 1 km deep · 34 km away
  8. 2.48 km E of Willits, California · 16954 days ago · 7 km deep · 75 km away
  9. 1.88 km E of Willits, California · 16954 days ago · 8 km deep · 75 km away
  10. 1.89 km E of Willits, California · 16953 days ago · 4 km deep · 75 km away
  11. 1.75 km E of Clearlake, California · 16953 days ago · 5 km deep · 25 km away
  12. 1.61 km ESE of Calpella, California · 16952 days ago · 4 km deep · 55 km away
  13. 2.325 km SE of Covelo, California · 16952 days ago · 5 km deep · 90 km away
  14. 1.84 km WSW of Cobb, California · 16951 days ago · 2 km deep · 4 km away
  15. 1.86 km NE of Rohnert Park, California · 16951 days ago · 8 km deep · 51 km away
  16. 1.66 km NNE of Hopland, California · 16951 days ago · 3 km deep · 33 km away
  17. 2.0near the coast of Northern California · 16951 days ago · 2 km deep · 33 km away
  18. 1.614 km SE of Hidden Valley Lake, California · 16951 days ago · 4 km deep · 33 km away
  19. 2.017 km NNE of Nice, California · 16950 days ago · -1 km deep · 48 km away
  20. 1.87 km WSW of Cobb, California · 16949 days ago · 1 km deep · 3 km away
  21. 2.47 km E of Willits, California · 16948 days ago · 6 km deep · 75 km away
  22. 3.06 km W of Cobb, California · 16947 days ago · 3 km deep · 0 km away
  23. 1.56 km W of Cobb, California · 16947 days ago · 2 km deep · 0 km away
  24. 1.67 km ENE of Santa Rosa, California · 16947 days ago · 4 km deep · 42 km away
  25. 2.32 km ESE of Calpella, California · 16946 days ago · 6 km deep · 54 km away
  26. 2.76 km WSW of Cobb, California · 16946 days ago · 1 km deep · 3 km away
  27. 1.94 km WSW of Cobb, California · 16946 days ago · 1 km deep · 4 km away
  28. 1.58 km ESE of Willits, California · 16944 days ago · 4 km deep · 73 km away
  29. 1.67 km S of Potter Valley, California · 16943 days ago · 3 km deep · 54 km away
  30. 1.83 km ESE of Santa Venetia, California · 16943 days ago · 4 km deep · 98 km away
  31. 1.87 km WNW of Cobb, CA · 16942 days ago · 5 km deep · 2 km away
  32. 2.26 km ENE of Willits, California · 16942 days ago · 7 km deep · 78 km away
  33. 1.51 km SSE of Upper Lake, California · 16942 days ago · 21 km deep · 37 km away
  34. 2.0Northern California · 16942 days ago · 2 km deep · 4 km away
  35. 1.613 km N of Brooktrails, California · 16941 days ago · 2 km deep · 95 km away
  36. 2.35 km ESE of Potter Valley, California · 16939 days ago · 3 km deep · 56 km away
  37. 1.510 km ESE of Hidden Valley Lake, California · 16939 days ago · 6 km deep · 30 km away
  38. 1.61 km WNW of Inverness, California · 16939 days ago · 10 km deep · 80 km away
  39. 1.66 km WNW of Cobb, California · 16937 days ago · 6 km deep · 2 km away
  40. 1.69 km W of Cobb, California · 16937 days ago · 4 km deep · 3 km away
  41. 2.25 km E of Penngrove, California · 16935 days ago · 0 km deep · 61 km away
  42. 1.66 km NE of Kenwood, California · 16935 days ago · 8 km deep · 48 km away
  43. 2.75 km SSW of Oakville, California · 16934 days ago · 9 km deep · 58 km away
  44. 1.93 km E of Soda Bay, California · 16933 days ago · 1 km deep · 20 km away
  45. 1.67 km E of Boonville, California · 16932 days ago · 7 km deep · 47 km away
  46. 2.37 km WSW of Cobb, California · 16931 days ago · -1 km deep · 3 km away
  47. 2.09 km WSW of Cobb, California · 16930 days ago · 1 km deep · 4 km away
  48. 1.57 km W of Cobb, CA · 16929 days ago · 2 km deep · 2 km away
  49. 2.17 km ESE of Talmage, California · 16929 days ago · 6 km deep · 40 km away
  50. 2.04 km SSE of Clear Lake Riviera, California · 16928 days ago · 1 km deep · 12 km away
  51. 1.67 km SSW of Calistoga, California · 16928 days ago · 4 km deep · 38 km away
  52. 1.94 km N of Green Valley, California · 16926 days ago · 12 km deep · 81 km away
  53. 1.78 km E of Clearlake Oaks, California · 16926 days ago · 6 km deep · 29 km away
  54. 1.69 km WSW of Cobb, California · 16925 days ago · 1 km deep · 4 km away
  55. 2.14 km WSW of Cobb, California · 16924 days ago · 1 km deep · 4 km away
  56. 2.16 km WNW of Cobb, California · 16924 days ago · 9 km deep · 2 km away
  57. 2.010 km ESE of Boonville, California · 16924 days ago · -1 km deep · 43 km away
  58. 3.17 km WSW of Cobb, California · 16923 days ago · 1 km deep · 3 km away
  59. 2.08 km WSW of Cobb, California · 16923 days ago · -1 km deep · 4 km away
  60. 1.56 km WSW of Cobb, California · 16923 days ago · 1 km deep · 3 km away

The first 60 of 108.

Before

  1. 1.75 km WNW of Ukiah, California · 16956 days ago · 4 km deep · 55 km away
  2. 1.614 km NNE of Angwin, California · 16956 days ago · 13 km deep · 38 km away
  3. 1.824 km SE of Covelo, California · 16957 days ago · 5 km deep · 90 km away
  4. 1.59 km WSW of Cobb, California · 16957 days ago · 2 km deep · 5 km away
  5. 1.97 km N of Kenwood, California · 16957 days ago · 7 km deep · 44 km away
  6. 1.7Northern California · 16957 days ago · 4 km deep · 37 km away
  7. 1.613 km SE of Hidden Valley Lake, California · 16958 days ago · -1 km deep · 33 km away
  8. 2.47 km NE of Rohnert Park, California · 16958 days ago · 7 km deep · 52 km away
  9. 1.913 km WSW of Brooktrails, California · 16958 days ago · 4 km deep · 88 km away
  10. 2.27 km WSW of Cobb, California · 16958 days ago · 3 km deep · 3 km away
  11. 1.56 km WSW of Cobb, California · 16959 days ago · -1 km deep · 3 km away
  12. 2.64 km WNW of Moskowite Corner, California · 16959 days ago · 3 km deep · 63 km away
  13. 1.610 km ESE of Hidden Valley Lake, California · 16959 days ago · 10 km deep · 31 km away
  14. 2.16 km E of Santa Venetia, California · 16960 days ago · 4 km deep · 98 km away
  15. 2.76 km N of Potter Valley, California · 16961 days ago · 0 km deep · 66 km away
  16. 1.88 km ESE of Willits, California · 16961 days ago · 0 km deep · 73 km away
  17. 2.24 km WSW of Cobb, California · 16961 days ago · 1 km deep · 4 km away
  18. 1.711 km ESE of Hidden Valley Lake, California · 16961 days ago · 10 km deep · 31 km away
  19. 2.28 km NNE of Calistoga, California · 16962 days ago · 5 km deep · 30 km away
  20. 1.67 km WSW of Cobb, California · 16962 days ago · 1 km deep · 5 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1052521. Read Thu, Oct 1, 2026, 11:23 PM UTC.