California earthquakes

M1.5 earthquake 12 km NE of Comptche, California

A magnitude 1.5 earthquake struck 12 km NE of Comptche, California on Tue, Nov 1, 1983, 8:52 AM PST (16:52 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.5 near the coast of Northern California. This one was a foreshock.

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Map

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

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The earthquake

Magnitude
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1983-11-01 16:52:52 UTC
Depth
2.0 km (1.2 mi), shallow
Epicenter
39.338° N, 123.482° 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 0.5 km horizontally, 2.2 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
110°
Stations used
5

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and 104 in the 30 days before it.

After

  1. 3.115 km N of Brooktrails, California · 15675 days ago · -1 km deep · 29 km away
  2. 2.015 km N of Brooktrails, California · 15675 days ago · -1 km deep · 29 km away
  3. 2.415 km SE of Laytonville, California · 15675 days ago · -1 km deep · 29 km away
  4. 1.815 km N of Brooktrails, California · 15675 days ago · -1 km deep · 29 km away
  5. 1.54 km WSW of Cobb, California · 15675 days ago · 0 km deep · 86 km away
  6. 1.615 km SE of Laytonville, California · 15675 days ago · 1 km deep · 30 km away
  7. 1.61 km ENE of Geyserville, California · 15675 days ago · 5 km deep · 87 km away
  8. 1.93 km NNE of Redway, California · 15675 days ago · 21 km deep · 94 km away
  9. 1.59 km WSW of Hopland, California · 15674 days ago · 8 km deep · 50 km away
  10. 2.05 km WSW of Cobb, California · 15674 days ago · -1 km deep · 84 km away
  11. 1.9Northern California · 15673 days ago · 3 km deep · 82 km away
  12. 1.88 km ENE of Brooktrails, California · 15673 days ago · 9 km deep · 23 km away
  13. 2.1Northern California · 15673 days ago · 2 km deep · 82 km away
  14. 1.61 km SW of Hopland, California · 15673 days ago · 0 km deep · 52 km away
  15. 1.66 km WSW of Cobb, California · 15673 days ago · 3 km deep · 84 km away
  16. 1.83 km WNW of Hopland, California · 15673 days ago · 8 km deep · 48 km away
  17. 1.88 km WSW of Cobb, California · 15672 days ago · 3 km deep · 84 km away
  18. 1.59 km NNE of Hidden Valley Lake, California · 15672 days ago · 2 km deep · 99 km away
  19. 1.54 km ESE of Clearlake Oaks, California · 15672 days ago · -1 km deep · 82 km away
  20. 3.5near the coast of Northern California · 15672 days ago · 2 km deep · 28 km away
  21. 1.67 km E of Willits, California · 15671 days ago · 8 km deep · 20 km away
  22. 1.63 km WNW of Hopland, California · 15671 days ago · 2 km deep · 48 km away
  23. 1.98 km WSW of Cobb, California · 15670 days ago · 1 km deep · 83 km away
  24. 1.610 km SSW of Hopland, California · 15670 days ago · -1 km deep · 58 km away
  25. 1.75 km SW of Cobb, California · 15670 days ago · 0 km deep · 86 km away
  26. 2.05 km SW of Cobb, California · 15670 days ago · -1 km deep · 86 km away
  27. 1.55 km SW of Cobb, California · 15670 days ago · 0 km deep · 86 km away
  28. 1.95 km W of Cobb, California · 15670 days ago · 0 km deep · 83 km away
  29. 1.613 km W of Cloverdale, California · 15670 days ago · 15 km deep · 67 km away
  30. 1.810 km E of Laytonville, California · 15670 days ago · 4 km deep · 42 km away
  31. 1.86 km W of Cobb, California · 15669 days ago · 3 km deep · 82 km away
  32. 2.213 km WNW of Jenner, California · 15669 days ago · 0 km deep · 98 km away
  33. 2.012 km WNW of Jenner, California · 15669 days ago · 1 km deep · 98 km away
  34. 2.413 km W of Jenner, California · 15669 days ago · 0 km deep · 98 km away
  35. 1.85 km SW of Cobb, California · 15669 days ago · 1 km deep · 87 km away
  36. 2.46 km SW of Cobb, California · 15668 days ago · 1 km deep · 87 km away
  37. 1.79 km NE of Hidden Valley Lake, California · 15668 days ago · 2 km deep · 99 km away
  38. 1.86 km W of Cobb, California · 15668 days ago · 3 km deep · 83 km away
  39. 1.86 km W of Cobb, California · 15668 days ago · 3 km deep · 82 km away
  40. 1.57 km WSW of Cobb, California · 15667 days ago · -1 km deep · 83 km away
  41. 2.05 km SSW of Cobb, California · 15667 days ago · -1 km deep · 90 km away
  42. 1.65 km SW of Cobb, California · 15667 days ago · 0 km deep · 86 km away
  43. 1.84 km S of Cobb, California · 15667 days ago · 1 km deep · 90 km away
  44. 1.97 km W of Cobb, California · 15667 days ago · 1 km deep · 81 km away
  45. 3.116 km NE of Brooktrails, California · 15666 days ago · -1 km deep · 31 km away
  46. 1.65 km SW of Cobb, California · 15666 days ago · -1 km deep · 86 km away
  47. 1.64 km WSW of Cobb, California · 15666 days ago · 1 km deep · 86 km away
  48. 1.87 km W of Cobb, California · 15665 days ago · 4 km deep · 82 km away
  49. 1.56 km W of Cobb, California · 15665 days ago · 2 km deep · 83 km away
  50. 1.7Northern California · 15665 days ago · -1 km deep · 83 km away
  51. 1.7Northern California · 15665 days ago · 1 km deep · 83 km away
  52. 2.111 km SE of Laytonville, California · 15665 days ago · 0 km deep · 31 km away
  53. 2.76 km N of Cobb, California · 15665 days ago · 1 km deep · 84 km away
  54. 1.96 km NNE of Cobb, California · 15665 days ago · 2 km deep · 84 km away
  55. 2.37 km WSW of Cobb, California · 15664 days ago · 3 km deep · 83 km away
  56. 2.64 km ENE of Garberville, California · 15664 days ago · 18 km deep · 89 km away
  57. 1.65 km SW of Cobb, California · 15663 days ago · 1 km deep · 88 km away
  58. 1.76 km W of Cobb, California · 15663 days ago · 3 km deep · 83 km away
  59. 2.56 km WSW of Cobb, California · 15663 days ago · 0 km deep · 84 km away
  60. 1.97 km W of Cobb, California · 15663 days ago · 0 km deep · 82 km away

The first 60 of at least 199.

Before

  1. 1.623 km N of Potter Valley, California · 15675 days ago · -1 km deep · 40 km away
  2. 1.76 km WSW of Cobb, California · 15675 days ago · 2 km deep · 83 km away
  3. 1.74 km SSW of Cobb, California · 15676 days ago · -1 km deep · 89 km away
  4. 2.37 km WSW of Cobb, California · 15676 days ago · 2 km deep · 84 km away
  5. 2.06 km W of Cobb, California · 15677 days ago · 3 km deep · 82 km away
  6. 2.38 km WSW of Cobb, California · 15677 days ago · 2 km deep · 83 km away
  7. 1.67 km WSW of Cobb, California · 15677 days ago · 1 km deep · 83 km away
  8. 1.65 km WSW of Cobb, California · 15677 days ago · 0 km deep · 85 km away
  9. 1.74 km E of Geyserville, California · 15678 days ago · 5 km deep · 89 km away
  10. 2.214 km SE of Laytonville, California · 15678 days ago · -1 km deep · 30 km away
  11. 3.06 km W of Cobb, California · 15679 days ago · 0 km deep · 83 km away
  12. 2.07 km NNE of Hidden Valley Lake, California · 15679 days ago · -1 km deep · 98 km away
  13. 1.85 km WSW of Cobb, California · 15679 days ago · 0 km deep · 86 km away
  14. 1.515 km NNW of Potter Valley, California · 15679 days ago · 2 km deep · 31 km away
  15. 1.76 km WSW of Cobb, California · 15679 days ago · 3 km deep · 84 km away
  16. 3.115 km SE of Laytonville, California · 15679 days ago · 2 km deep · 29 km away
  17. 1.75 km WSW of Cobb, California · 15680 days ago · 0 km deep · 85 km away
  18. 1.76 km WSW of Cobb, California · 15680 days ago · 1 km deep · 84 km away
  19. 2.37 km WSW of Cobb, California · 15681 days ago · 1 km deep · 84 km away
  20. 1.74 km W of Cobb, California · 15681 days ago · 0 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1106046. Read Fri, Oct 2, 2026, 12:59 AM UTC.