California earthquakes

M2.6 earthquake 13 km NW of Philo, California

A magnitude 2.6 earthquake struck 13 km NW of Philo, California on Thu, Dec 4, 1980, 3:25 PM PST (23:25 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.2 3 km ESE of Clear Lake Riviera, 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
2.6 (md), micro
Local time
UTC
1980-12-04 23:25:13 UTC
Depth
1.9 km (1.2 mi), shallow
Epicenter
39.145° N, 123.560° 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 0.4 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
163°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 152 in the 60 days after this one and 37 in the 30 days before it.

After

  1. 2.122 km NE of Potter Valley, California · 16728 days ago · 7 km deep · 64 km away
  2. 2.36 km WSW of Cobb, California · 16727 days ago · 0 km deep · 76 km away
  3. 1.94 km WSW of Cobb, California · 16726 days ago · 2 km deep · 78 km away
  4. 2.18 km SE of Laytonville, California · 16726 days ago · 6 km deep · 57 km away
  5. 2.022 km NE of Potter Valley, California · 16725 days ago · 8 km deep · 64 km away
  6. 2.419 km NNE of Upper Lake, California · 16724 days ago · 7 km deep · 69 km away
  7. 2.011 km NNW of Laytonville, California · 16723 days ago · 5 km deep · 71 km away
  8. 2.06 km WSW of Cobb, California · 16722 days ago · 1 km deep · 76 km away
  9. 1.810 km E of Lower Lake, California · 16722 days ago · 2 km deep · 96 km away
  10. 1.79 km WSW of Cobb, California · 16722 days ago · 2 km deep · 74 km away
  11. 2.65 km SW of Cobb, California · 16722 days ago · 0 km deep · 79 km away
  12. 1.67 km W of Calistoga, California · 16721 days ago · 4 km deep · 100 km away
  13. 3.23 km ESE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 79 km away
  14. 3.12 km ESE of Clear Lake Riviera, California · 16720 days ago · 0 km deep · 78 km away
  15. 2.21 km ENE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  16. 2.51 km SSW of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 75 km away
  17. 2.41 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  18. 1.92 km ESE of Clear Lake Riviera, California · 16720 days ago · 0 km deep · 78 km away
  19. 2.42 km ESE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  20. 2.22 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  21. 2.32 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  22. 3.93 km ESE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 79 km away
  23. 1.82 km SE of Clear Lake Riviera, California · 16720 days ago · 0 km deep · 78 km away
  24. 2.53 km SE of Clear Lake Riviera, California · 16720 days ago · 0 km deep · 79 km away
  25. 1.81 km SSE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 76 km away
  26. 2.14 km WSW of Clearlake, California · 16720 days ago · -1 km deep · 80 km away
  27. 1.62 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  28. 1.63 km ESE of Clear Lake Riviera, California · 16720 days ago · 2 km deep · 79 km away
  29. 1.73 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  30. 1.61 km E of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  31. 1.72 km SSE of Clear Lake Riviera, California · 16720 days ago · 0 km deep · 78 km away
  32. 2.53 km ESE of Clear Lake Riviera, California · 16720 days ago · 2 km deep · 79 km away
  33. 1.52 km SSE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  34. 1.74 km ESE of Clear Lake Riviera, California · 16720 days ago · 3 km deep · 80 km away
  35. 2.03 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 79 km away
  36. 3.72 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  37. 3.22 km E of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 78 km away
  38. 1.82 km ENE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  39. 1.93 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 79 km away
  40. 1.71 km ENE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 77 km away
  41. 1.72 km SE of Clear Lake Riviera, California · 16720 days ago · -1 km deep · 78 km away
  42. 1.92 km NE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 77 km away
  43. 2.52 km ENE of Clear Lake Riviera, California · 16720 days ago · 1 km deep · 78 km away
  44. 1.73 km ESE of Clear Lake Riviera, California · 16719 days ago · -1 km deep · 79 km away
  45. 1.64 km ESE of Clear Lake Riviera, California · 16719 days ago · 3 km deep · 80 km away
  46. 1.62 km ESE of Clear Lake Riviera, California · 16718 days ago · -1 km deep · 78 km away
  47. 2.87 km E of Willits, California · 16718 days ago · 8 km deep · 39 km away
  48. 1.69 km W of Cobb, California · 16717 days ago · 1 km deep · 73 km away
  49. 1.69 km W of Cobb, California · 16717 days ago · 1 km deep · 73 km away
  50. 3.15 km WSW of Cobb, California · 16717 days ago · 1 km deep · 78 km away
  51. 1.95 km WSW of Cobb, California · 16717 days ago · 0 km deep · 78 km away
  52. 2.19 km WSW of Cobb, California · 16717 days ago · 1 km deep · 73 km away
  53. 1.53 km SSE of Geyserville, California · 16716 days ago · 5 km deep · 78 km away
  54. 1.913 km N of Brooktrails, California · 16716 days ago · 7 km deep · 49 km away
  55. 2.13 km ESE of Clear Lake Riviera, California · 16716 days ago · 2 km deep · 79 km away
  56. 1.816 km N of Laytonville, California · 16716 days ago · 6 km deep · 77 km away
  57. 2.19 km NNE of Cloverdale, California · 16716 days ago · 4 km deep · 57 km away
  58. 1.86 km WSW of Cobb, California · 16715 days ago · 4 km deep · 76 km away
  59. 1.87 km WSW of Cobb, California · 16715 days ago · 1 km deep · 76 km away
  60. 2.39 km WSW of Cobb, California · 16713 days ago · 1 km deep · 74 km away

The first 60 of 152.

Before

  1. 1.76 km WSW of Cobb, California · 16730 days ago · 1 km deep · 76 km away
  2. 2.14 km WSW of Cobb, California · 16730 days ago · 1 km deep · 78 km away
  3. 2.56 km W of Cobb, California · 16730 days ago · 3 km deep · 75 km away
  4. 1.59 km WSW of Cobb, California · 16731 days ago · 1 km deep · 74 km away
  5. 1.610 km N of Cloverdale, California · 16731 days ago · 4 km deep · 55 km away
  6. 2.06 km WNW of Cobb, California · 16731 days ago · 1 km deep · 74 km away
  7. 1.65 km S of Cobb, California · 16733 days ago · 2 km deep · 83 km away
  8. 2.53 km W of Redwood Valley, California · 16733 days ago · 7 km deep · 30 km away
  9. 1.65 km WSW of Healdsburg, California · 16733 days ago · 3 km deep · 82 km away
  10. 2.34 km WSW of Healdsburg, California · 16733 days ago · 4 km deep · 82 km away
  11. 1.824 km ENE of Potter Valley, California · 16734 days ago · 16 km deep · 67 km away
  12. 1.66 km WSW of Cobb, California · 16734 days ago · 1 km deep · 76 km away
  13. 2.29 km W of Cobb, California · 16734 days ago · 1 km deep · 73 km away
  14. 1.723 km ENE of Potter Valley, California · 16734 days ago · 15 km deep · 67 km away
  15. 1.618 km WSW of Stonyford, California · 16735 days ago · 12 km deep · 73 km away
  16. 2.26 km NW of Redwood Valley, California · 16735 days ago · 7 km deep · 32 km away
  17. 1.98 km SE of Willits, California · 16735 days ago · 2 km deep · 34 km away
  18. 1.56 km W of Lower Lake, California · 16736 days ago · 5 km deep · 81 km away
  19. 1.69 km WSW of Cobb, California · 16738 days ago · 2 km deep · 74 km away
  20. 1.613 km SSE of Laytonville, California · 16738 days ago · 0 km deep · 49 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1057786. Read Tue, Sep 22, 2026, 4:22 PM UTC.