California earthquakes

M1.8 earthquake 12 km E of Angwin, California

A magnitude 1.8 earthquake struck 12 km E of Angwin, California on Fri, Jan 29, 1988, 9:12 PM PST (05:12 UTC), 0 km (0 mi) below the surface.

A larger quake followed: M3.4 7 km W of Cobb, California. This one was a foreshock.

Angwin forecastMore in California

Map

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

Open the live map with earthquakes

The earthquake

Magnitude
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1988-01-30 05:12:14 UTC
Depth
0.2 km (0.1 mi), shallow
Epicenter
38.586° N, 122.310° 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 0.6 km horizontally, 0.9 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
93°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 164 in the 60 days after this one and 109 in the 30 days before it.

After

  1. 2.77 km WSW of Cobb, California · 14124 days ago · 1 km deep · 49 km away
  2. 1.78 km SW of Cobb, California · 14124 days ago · -1 km deep · 47 km away
  3. 1.96 km W of Cobb, California · 14124 days ago · 3 km deep · 50 km away
  4. 1.96 km W of Cobb, California · 14124 days ago · 1 km deep · 50 km away
  5. 1.97 km W of Cobb, California · 14124 days ago · 4 km deep · 51 km away
  6. 2.48 km W of Cobb, California · 14124 days ago · -1 km deep · 52 km away
  7. 1.812 km E of Blackhawk, California · 14123 days ago · 10 km deep · 98 km away
  8. 2.14 km SW of Hopland, California · 14123 days ago · 4 km deep · 83 km away
  9. 1.512 km SSW of Kelseyville, California · 14122 days ago · 4 km deep · 61 km away
  10. 1.94 km W of Cobb, California · 14122 days ago · 1 km deep · 48 km away
  11. 1.74 km WSW of Cobb, California · 14122 days ago · 1 km deep · 48 km away
  12. 1.67 km WSW of Cobb, California · 14120 days ago · 0 km deep · 49 km away
  13. 1.78 km W of Cobb, California · 14120 days ago · 0 km deep · 52 km away
  14. 2.010 km ESE of Hopland, California · 14120 days ago · 5 km deep · 72 km away
  15. 2.17 km W of Cobb, California · 14119 days ago · -1 km deep · 51 km away
  16. 1.56 km ENE of Boonville, California · 14119 days ago · 0 km deep · 98 km away
  17. 2.16 km W of Cobb, California · 14119 days ago · 3 km deep · 50 km away
  18. 1.78 km W of Cobb, California · 14119 days ago · 0 km deep · 52 km away
  19. 1.77 km ENE of Geyserville, California · 14118 days ago · 5 km deep · 47 km away
  20. 1.66 km W of Cobb, California · 14118 days ago · 2 km deep · 50 km away
  21. 2.66 km W of Cobb, California · 14118 days ago · 3 km deep · 50 km away
  22. 1.64 km WSW of Cobb, California · 14115 days ago · -1 km deep · 47 km away
  23. 2.75 km WSW of Cobb, California · 14115 days ago · 0 km deep · 48 km away
  24. 1.67 km WSW of Cobb, California · 14115 days ago · 1 km deep · 49 km away
  25. 1.79 km W of Cobb, California · 14115 days ago · 1 km deep · 52 km away
  26. 1.66 km SW of Cobb, California · 14115 days ago · 3 km deep · 46 km away
  27. 2.59 km W of Cobb, California · 14115 days ago · 0 km deep · 52 km away
  28. 1.65 km WSW of Cobb, California · 14114 days ago · 2 km deep · 48 km away
  29. 1.9Northern California · 14114 days ago · 3 km deep · 49 km away
  30. 2.68 km W of Cobb, California · 14114 days ago · 1 km deep · 52 km away
  31. 3.18 km W of Cobb, California · 14114 days ago · 1 km deep · 51 km away
  32. 1.98 km W of Cobb, California · 14114 days ago · 1 km deep · 52 km away
  33. 1.68 km W of Cobb, California · 14114 days ago · 2 km deep · 52 km away
  34. 2.68 km W of Cobb, California · 14114 days ago · 1 km deep · 52 km away
  35. 1.88 km W of Cobb, California · 14114 days ago · 0 km deep · 52 km away
  36. 2.29 km W of Cobb, California · 14113 days ago · 1 km deep · 51 km away
  37. 1.75 km E of Hopland, California · 14113 days ago · 1 km deep · 78 km away
  38. 2.15 km SSW of Cobb, California · 14112 days ago · 1 km deep · 44 km away
  39. 1.93 km SSW of Cobb, California · 14112 days ago · 1 km deep · 44 km away
  40. 1.9Northern California · 14111 days ago · 4 km deep · 50 km away
  41. 1.69 km NE of Cloverdale, California · 14110 days ago · 3 km deep · 64 km away
  42. 1.95 km W of Cobb, California · 14109 days ago · 0 km deep · 49 km away
  43. 1.59 km SSW of Lakeport, California · 14109 days ago · 1 km deep · 70 km away
  44. 1.67 km S of Cobb, California · 14109 days ago · 2 km deep · 39 km away
  45. 1.77 km WSW of Cobb, California · 14109 days ago · 0 km deep · 49 km away
  46. 1.86 km W of Cobb, California · 14109 days ago · 3 km deep · 49 km away
  47. 2.16 km W of Cobb, California · 14109 days ago · 3 km deep · 50 km away
  48. 2.07 km WSW of Cobb, California · 14109 days ago · 3 km deep · 49 km away
  49. 1.66 km ENE of Boonville, California · 14108 days ago · 1 km deep · 98 km away
  50. 1.56 km E of Boonville, California · 14108 days ago · 5 km deep · 98 km away
  51. 2.17 km WSW of Cobb, California · 14108 days ago · 2 km deep · 49 km away
  52. 1.66 km SW of Cobb, California · 14108 days ago · 1 km deep · 45 km away
  53. 1.66 km WSW of Cobb, California · 14108 days ago · 4 km deep · 49 km away
  54. 1.64 km WSW of Cobb, California · 14108 days ago · -1 km deep · 47 km away
  55. 1.56 km SW of Cobb, California · 14107 days ago · 1 km deep · 46 km away
  56. 2.34 km SW of Cobb, California · 14107 days ago · 1 km deep · 46 km away
  57. 2.18 km NE of Windsor, California · 14105 days ago · 2 km deep · 37 km away
  58. 1.66 km WNW of Cobb, California · 14105 days ago · -1 km deep · 51 km away
  59. 1.712 km N of Pittsburg, California · 14105 days ago · 5 km deep · 62 km away
  60. 1.87 km WSW of Cobb, California · 14104 days ago · 2 km deep · 49 km away

The first 60 of 164.

Before

  1. 1.67 km W of Cobb, California · 14126 days ago · 3 km deep · 50 km away
  2. 1.65 km SSW of Cobb, California · 14126 days ago · -1 km deep · 44 km away
  3. 1.72 km NNW of Blackhawk, California · 14127 days ago · 16 km deep · 89 km away
  4. 1.93 km NNW of Blackhawk, California · 14127 days ago · 17 km deep · 88 km away
  5. 2.07 km W of Cobb, California · 14128 days ago · 3 km deep · 50 km away
  6. 1.52 km NE of San Leandro, California · 14128 days ago · 4 km deep · 95 km away
  7. 2.14 km WSW of Cobb, California · 14128 days ago · 0 km deep · 47 km away
  8. 2.21 km WNW of Concord, California · 14128 days ago · 15 km deep · 71 km away
  9. 1.54 km WSW of Cobb, California · 14128 days ago · 2 km deep · 47 km away
  10. 1.67 km WSW of Cobb, California · 14128 days ago · -1 km deep · 49 km away
  11. 3.06 km WSW of Cobb, California · 14128 days ago · 1 km deep · 49 km away
  12. 1.85 km WSW of Cobb, California · 14129 days ago · 1 km deep · 48 km away
  13. 1.67 km WSW of Cobb, California · 14129 days ago · 1 km deep · 50 km away
  14. 2.49 km SW of Brentwood, California · 14130 days ago · 16 km deep · 94 km away
  15. 1.69 km E of Hidden Valley Lake, California · 14130 days ago · 5 km deep · 26 km away
  16. 2.16 km WSW of Cobb, California · 14130 days ago · 3 km deep · 49 km away
  17. 1.67 km W of Cobb, California · 14131 days ago · -1 km deep · 52 km away
  18. 2.09 km E of Hidden Valley Lake, California · 14131 days ago · 7 km deep · 29 km away
  19. 1.811 km E of Blackhawk, California · 14131 days ago · 5 km deep · 97 km away
  20. 2.56 km W of Cobb, California · 14131 days ago · 1 km deep · 50 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc111637. Read Fri, Oct 2, 2026, 2:18 AM UTC.