California earthquakes

M1.5 earthquake 7 km W of Cobb, California

A magnitude 1.5 earthquake struck 7 km W of Cobb, California on Fri, Apr 27, 1990, 3:59 PM PDT (22:59 UTC), -1 km (0 mi) below the surface.

A larger quake followed: M3.6 4 km W 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.

Open the live map with earthquakes

The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1990-04-27 22:59:25 UTC
Depth
-0.5 km (-0.3 mi), shallow
Epicenter
38.822° N, 122.813° 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 0.3 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
70°
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: 166 in the 60 days after this one and 95 in the 30 days before it.

After

  1. 1.79 km W of Cobb, California · 13309 days ago · 1 km deep · 2 km away
  2. 1.68 km WSW of Cobb, California · 13308 days ago · 1 km deep · 3 km away
  3. 2.27 km WSW of Cobb, California · 13308 days ago · 1 km deep · 2 km away
  4. 1.95 km S of Moskowite Corner, California · 13308 days ago · 6 km deep · 72 km away
  5. 3.27 km WNW of Cobb, California · 13306 days ago · 1 km deep · 2 km away
  6. 2.06 km W of Cobb, California · 13306 days ago · 4 km deep · 1 km away
  7. 1.55 km SW of Cobb, California · 13306 days ago · 2 km deep · 5 km away
  8. 2.413 km NNE of Brooktrails, California · 13305 days ago · 9 km deep · 95 km away
  9. 1.77 km W of Cobb, California · 13305 days ago · 3 km deep · 1 km away
  10. 1.6Northern California · 13304 days ago · 0 km deep · 82 km away
  11. 1.73 km WSW of Cobb, California · 13304 days ago · 0 km deep · 5 km away
  12. 1.7Northern California · 13304 days ago · 3 km deep · 1 km away
  13. 2.46 km ESE of Roseland, California · 13302 days ago · 9 km deep · 49 km away
  14. 1.79 km W of Cobb, California · 13302 days ago · 1 km deep · 1 km away
  15. 2.04 km E of Lakeport, California · 13302 days ago · 11 km deep · 26 km away
  16. 2.22 km SSW of Fulton, California · 13301 days ago · 4 km deep · 38 km away
  17. 1.88 km W of Cobb, California · 13301 days ago · 1 km deep · 1 km away
  18. 1.88 km W of Cobb, California · 13301 days ago · 0 km deep · 1 km away
  19. 1.721 km E of Potter Valley, California · 13301 days ago · 3 km deep · 60 km away
  20. 1.78 km W of Cobb, California · 13299 days ago · 4 km deep · 1 km away
  21. 2.18 km W of Cobb, California · 13299 days ago · 1 km deep · 1 km away
  22. 1.65 km SSW of Calistoga, California · 13298 days ago · 4 km deep · 36 km away
  23. 1.82 km NE of Lower Lake, California · 13296 days ago · 6 km deep · 22 km away
  24. 1.87 km W of Cobb, California · 13296 days ago · 3 km deep · 1 km away
  25. 1.84 km ESE of Roseland, California · 13296 days ago · 7 km deep · 48 km away
  26. 1.54 km ESE of Roseland, California · 13295 days ago · 7 km deep · 48 km away
  27. 1.67 km W of Cobb, California · 13295 days ago · 4 km deep · 1 km away
  28. 1.618 km NE of Upper Lake, California · 13295 days ago · 9 km deep · 52 km away
  29. 1.618 km NE of Upper Lake, California · 13295 days ago · 9 km deep · 52 km away
  30. 1.77 km W of Cobb, California · 13295 days ago · 4 km deep · 1 km away
  31. 2.09 km WSW of Cobb, California · 13294 days ago · 2 km deep · 3 km away
  32. 1.89 km W of Cobb, California · 13293 days ago · 1 km deep · 2 km away
  33. 1.56 km W of Cobb, California · 13293 days ago · 2 km deep · 2 km away
  34. 1.67 km W of Cobb, California · 13293 days ago · 3 km deep · 1 km away
  35. 1.69 km WNW of Cobb, California · 13293 days ago · 2 km deep · 2 km away
  36. 2.69 km W of Cobb, California · 13292 days ago · 0 km deep · 1 km away
  37. 2.19 km W of Cobb, California · 13292 days ago · 0 km deep · 1 km away
  38. 2.29 km W of Cobb, California · 13292 days ago · 0 km deep · 2 km away
  39. 2.49 km W of Cobb, California · 13292 days ago · 1 km deep · 2 km away
  40. 2.35 km SW of Cobb, California · 13292 days ago · 3 km deep · 4 km away
  41. 1.67 km WSW of Cobb, California · 13292 days ago · 1 km deep · 2 km away
  42. 2.27 km W of Cobb, California · 13292 days ago · 0 km deep · 1 km away
  43. 3.18 km W of Cobb, California · 13292 days ago · 0 km deep · 1 km away
  44. 2.27 km W of Cobb, California · 13292 days ago · 0 km deep · 1 km away
  45. 1.87 km W of Cobb, California · 13291 days ago · 0 km deep · 1 km away
  46. 1.86 km W of Cobb, California · 13291 days ago · 3 km deep · 1 km away
  47. 1.54 km SSW of Cobb, California · 13290 days ago · 0 km deep · 7 km away
  48. 1.84 km SSW of Cobb, California · 13290 days ago · 1 km deep · 7 km away
  49. 2.09 km W of Cobb, California · 13290 days ago · 1 km deep · 2 km away
  50. 2.17 km NE of Upper Lake, California · 13289 days ago · 8 km deep · 43 km away
  51. 1.66 km W of Cobb, California · 13288 days ago · 3 km deep · 1 km away
  52. 1.79 km W of Cobb, California · 13288 days ago · 0 km deep · 2 km away
  53. 2.24 km WSW of Cobb, California · 13288 days ago · 2 km deep · 4 km away
  54. 2.05 km WNW of Cobb, California · 13287 days ago · 1 km deep · 3 km away
  55. 1.75 km WNW of Cobb, California · 13287 days ago · 1 km deep · 3 km away
  56. 1.85 km W of Cobb, California · 13287 days ago · 2 km deep · 3 km away
  57. 2.18 km WSW of Cobb, California · 13286 days ago · 4 km deep · 3 km away
  58. 1.56 km S of Cobb, California · 13286 days ago · 1 km deep · 10 km away
  59. 1.64 km S of Cobb, California · 13286 days ago · 2 km deep · 9 km away
  60. 1.65 km SW of Cobb, California · 13286 days ago · 1 km deep · 5 km away

The first 60 of 166.

Before

  1. 2.18 km W of Cobb, California · 13309 days ago · -1 km deep · 0 km away
  2. 2.16 km SW of Cobb, California · 13310 days ago · 2 km deep · 5 km away
  3. 1.88 km ENE of Potter Valley, California · 13310 days ago · 7 km deep · 60 km away
  4. 1.66 km SW of Kenwood, California · 13310 days ago · 6 km deep · 53 km away
  5. 1.521 km E of Potter Valley, California · 13311 days ago · 0 km deep · 60 km away
  6. 1.612 km ENE of Cloverdale, California · 13311 days ago · 1 km deep · 6 km away
  7. 1.76 km W of Cobb, California · 13311 days ago · 0 km deep · 1 km away
  8. 1.66 km W of Cobb, California · 13312 days ago · 3 km deep · 1 km away
  9. 2.014 km SE of Hidden Valley Lake, California · 13312 days ago · 7 km deep · 35 km away
  10. 1.55 km SW of Cobb, California · 13312 days ago · 0 km deep · 5 km away
  11. 2.38 km WNW of Cobb, California · 13312 days ago · 2 km deep · 2 km away
  12. 1.66 km W of Cobb, California · 13312 days ago · 1 km deep · 1 km away
  13. 1.67 km W of Cobb, California · 13313 days ago · 0 km deep · 0 km away
  14. 2.07 km W of Cobb, California · 13314 days ago · 0 km deep · 1 km away
  15. 2.212 km WSW of Hopland, California · 13314 days ago · -1 km deep · 40 km away
  16. 2.17 km WSW of Cobb, California · 13314 days ago · 2 km deep · 3 km away
  17. 1.66 km W of Cobb, California · 13315 days ago · 1 km deep · 2 km away
  18. 2.06 km W of Cobb, California · 13315 days ago · 2 km deep · 2 km away
  19. 2.56 km WSW of Cobb, California · 13315 days ago · 0 km deep · 3 km away
  20. 3.35 km W of Cobb, California · 13315 days ago · 1 km deep · 2 km away

Earthquakes todayCalifornia earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc156705. Read Mon, Oct 5, 2026, 7:42 AM UTC.