California earthquakes

M2.4 earthquake 16 km NE of Nice, California

A magnitude 2.4 earthquake struck 16 km NE of Nice, California on Fri, Feb 24, 1978, 10:03 PM PST (06:03 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M2.5 2 km SE of Calpella, 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
2.4 (md), micro
Local time
UTC
1978-02-25 06:03:02 UTC
Depth
7.3 km (4.5 mi), shallow
Epicenter
39.230° N, 122.712° 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 0.7 km horizontally, 0.8 km in depth
Magnitude uncertainty
±0.06
Depth from
From location
Station coverage gap
296°, poorly surrounded by stations
Stations used
10

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 200 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 1.54 km SE of Calpella, California · 17713 days ago · 2 km deep · 40 km away
  2. 2.52 km SE of Calpella, California · 17713 days ago · 4 km deep · 41 km away
  3. 2.65 km SE of Calpella, California · 17713 days ago · 8 km deep · 38 km away
  4. 1.61 km SE of Calpella, California · 17713 days ago · 4 km deep · 41 km away
  5. 2.34 km SE of Calpella, California · 17713 days ago · 4 km deep · 39 km away
  6. 2.25 km SE of Calpella, California · 17713 days ago · 6 km deep · 38 km away
  7. 2.23 km ESE of Calpella, California · 17713 days ago · 6 km deep · 40 km away
  8. 2.55 km NE of Ukiah, California · 17713 days ago · 3 km deep · 39 km away
  9. 1.87 km SE of Calpella, California · 17713 days ago · 2 km deep · 37 km away
  10. 2.74 km SE of Calpella, California · 17713 days ago · 10 km deep · 40 km away
  11. 2.32 km ENE of Calpella, California · 17713 days ago · 4 km deep · 40 km away
  12. 1.65 km SE of Calpella, California · 17713 days ago · 0 km deep · 39 km away
  13. 2.63 km ESE of Calpella, California · 17713 days ago · 6 km deep · 40 km away
  14. 2.64 km SE of Calpella, California · 17713 days ago · 6 km deep · 39 km away
  15. 2.24 km SE of Calpella, California · 17713 days ago · 6 km deep · 39 km away
  16. 2.13 km ESE of Calpella, California · 17713 days ago · 0 km deep · 39 km away
  17. 3.05 km SE of Calpella, California · 17713 days ago · 9 km deep · 38 km away
  18. 2.8near the coast of Northern California · 17713 days ago · 6 km deep · 40 km away
  19. 3.75 km SE of Calpella, California · 17713 days ago · 11 km deep · 38 km away
  20. 2.94 km SE of Calpella, California · 17713 days ago · 6 km deep · 39 km away
  21. 2.43 km ESE of Calpella, California · 17713 days ago · 6 km deep · 39 km away
  22. 2.33 km SE of Calpella, California · 17713 days ago · 3 km deep · 41 km away
  23. 3.53 km ESE of Calpella, California · 17713 days ago · 12 km deep · 39 km away
  24. 2.31 km ENE of Calpella, California · 17713 days ago · 2 km deep · 41 km away
  25. 3.26 km SE of Calpella, California · 17713 days ago · 9 km deep · 38 km away
  26. 2.63 km ESE of Calpella, California · 17713 days ago · 7 km deep · 39 km away
  27. 2.45 km NE of Ukiah, California · 17713 days ago · 4 km deep · 40 km away
  28. 3.74 km SE of Calpella, California · 17713 days ago · 12 km deep · 39 km away
  29. 2.52 km SE of Calpella, California · 17713 days ago · 4 km deep · 41 km away
  30. 1.92 km ESE of Calpella, California · 17713 days ago · 2 km deep · 40 km away
  31. 1.95 km SE of Calpella, California · 17713 days ago · 1 km deep · 39 km away
  32. 2.53 km SE of Calpella, California · 17712 days ago · 7 km deep · 40 km away
  33. 1.6Northern California · 17712 days ago · 7 km deep · 84 km away
  34. 2.96 km SE of Calpella, California · 17712 days ago · 8 km deep · 38 km away
  35. 2.4near the coast of Northern California · 17712 days ago · 8 km deep · 40 km away
  36. 2.05 km NE of Ukiah, California · 17712 days ago · 0 km deep · 39 km away
  37. 2.03 km ESE of Calpella, California · 17712 days ago · 6 km deep · 40 km away
  38. 2.02 km E of Calpella, California · 17712 days ago · 10 km deep · 40 km away
  39. 2.65 km SE of Calpella, California · 17712 days ago · 6 km deep · 39 km away
  40. 2.22 km E of Calpella, California · 17712 days ago · 5 km deep · 40 km away
  41. 2.54 km SSE of Calpella, California · 17712 days ago · 3 km deep · 40 km away
  42. 2.05 km SE of Calpella, California · 17712 days ago · 0 km deep · 39 km away
  43. 2.11 km ESE of Calpella, California · 17712 days ago · 6 km deep · 40 km away
  44. 2.34 km SE of Calpella, California · 17712 days ago · 2 km deep · 39 km away
  45. 2.15 km SE of Calpella, California · 17712 days ago · 3 km deep · 39 km away
  46. 2.23 km SE of Calpella, California · 17712 days ago · 2 km deep · 39 km away
  47. 2.44 km SE of Calpella, California · 17712 days ago · 4 km deep · 39 km away
  48. 2.33 km SE of Calpella, California · 17712 days ago · 4 km deep · 40 km away
  49. 2.86 km NE of Ukiah, California · 17712 days ago · 6 km deep · 39 km away
  50. 2.15 km SE of Calpella, California · 17712 days ago · 2 km deep · 39 km away
  51. 2.11 km ENE of Calpella, California · 17712 days ago · 6 km deep · 41 km away
  52. 2.83 km SE of Calpella, California · 17712 days ago · 4 km deep · 40 km away
  53. 2.55 km NE of Ukiah, California · 17712 days ago · -1 km deep · 39 km away
  54. 1.77 km WSW of Cobb, California · 17712 days ago · 1 km deep · 48 km away
  55. 2.14 km SE of Calpella, California · 17712 days ago · 3 km deep · 39 km away
  56. 1.70 km W of Redwood Valley, California · 17712 days ago · -1 km deep · 43 km away
  57. 3.14 km SE of Calpella, California · 17712 days ago · 12 km deep · 39 km away
  58. 1.82 km ESE of Calpella, California · 17712 days ago · -1 km deep · 40 km away
  59. 2.43 km ESE of Calpella, California · 17712 days ago · 8 km deep · 40 km away
  60. 2.54 km SE of Calpella, California · 17712 days ago · 8 km deep · 40 km away

The first 60 of 200.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1039087. Read Tue, Sep 22, 2026, 4:24 PM UTC.