California earthquakes

M2.7 earthquake 1 km N of Palermo, California

A magnitude 2.7 earthquake struck 1 km N of Palermo, California on Thu, Dec 18, 1975, 10:46 PM PST (06:46 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M2.9 1 km NE of South Oroville, California. This one was a foreshock.

Palermo forecastMore in California

Map

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

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The earthquake

Magnitude
2.7 (md), micro
Local time
UTC
1975-12-19 06:46:49 UTC
Depth
7.6 km (4.7 mi), shallow
Epicenter
39.450° N, 121.537° 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, 0.6 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
60°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 69 in the 60 days after this one and 36 in the 30 days before it.

After

  1. 2.14 km SSE of Palermo, California · 18540 days ago · 4 km deep · 6 km away
  2. 2.91 km NE of South Oroville, California · 18540 days ago · 9 km deep · 6 km away
  3. 2.35 km SE of Palermo, California · 18539 days ago · 5 km deep · 7 km away
  4. 1.93 km SSW of South Oroville, California · 18538 days ago · 12 km deep · 3 km away
  5. 1.65 km ENE of Palermo, California · 18537 days ago · 2 km deep · 5 km away
  6. 1.63 km ENE of Oroville, California · 18537 days ago · 7 km deep · 9 km away
  7. 2.14 km E of Palermo, California · 18537 days ago · 4 km deep · 5 km away
  8. 2.14 km SE of Palermo, California · 18536 days ago · 6 km deep · 5 km away
  9. 2.83 km SSE of Palermo, California · 18534 days ago · 6 km deep · 5 km away
  10. 2.14 km SE of Palermo, California · 18533 days ago · 4 km deep · 5 km away
  11. 2.83 km SE of Palermo, California · 18533 days ago · 6 km deep · 5 km away
  12. 1.54 km SSE of Palermo, California · 18533 days ago · 5 km deep · 6 km away
  13. 2.23 km SE of Palermo, California · 18530 days ago · 3 km deep · 5 km away
  14. 3.13 km SE of Palermo, California · 18527 days ago · 4 km deep · 5 km away
  15. 1.74 km SE of Palermo, California · 18527 days ago · 3 km deep · 6 km away
  16. 1.65 km ENE of Palermo, California · 18527 days ago · 3 km deep · 5 km away
  17. 3.01 km S of Palermo, California · 18525 days ago · 8 km deep · 3 km away
  18. 2.25 km SE of Palermo, California · 18525 days ago · 3 km deep · 6 km away
  19. 2.51 km SE of Oroville, California · 18524 days ago · 10 km deep · 6 km away
  20. 2.01 km NNE of South Oroville, California · 18524 days ago · 10 km deep · 6 km away
  21. 1.61 km SSE of Palermo, California · 18523 days ago · 7 km deep · 3 km away
  22. 2.53 km ESE of Palermo, California · 18523 days ago · 4 km deep · 4 km away
  23. 1.85 km SSE of Palermo, California · 18523 days ago · 3 km deep · 7 km away
  24. 2.13 km ESE of Palermo, California · 18520 days ago · 5 km deep · 4 km away
  25. 1.94 km S of Oroville East, California · 18519 days ago · 2 km deep · 5 km away
  26. 2.82 km SW of Oroville East, California · 18519 days ago · 5 km deep · 6 km away
  27. 1.86 km SE of Palermo, California · 18517 days ago · 3 km deep · 8 km away
  28. 1.74 km SE of Palermo, California · 18516 days ago · 4 km deep · 6 km away
  29. 2.16 km ESE of Palermo, California · 18516 days ago · 3 km deep · 7 km away
  30. 1.51 km SSW of Oroville East, California · 18515 days ago · 3 km deep · 7 km away
  31. 1.66 km WNW of Bangor, California · 18514 days ago · 4 km deep · 7 km away
  32. 1.53 km SE of Palermo, California · 18513 days ago · 3 km deep · 5 km away
  33. 1.83 km SSE of Palermo, California · 18513 days ago · 4 km deep · 5 km away
  34. 2.56 km SE of Palermo, California · 18512 days ago · 4 km deep · 8 km away
  35. 2.6Northern California · 18512 days ago · 2 km deep · 10 km away
  36. 3.25 km ESE of Palermo, California · 18512 days ago · 3 km deep · 6 km away
  37. 3.45 km ESE of Palermo, California · 18511 days ago · 4 km deep · 6 km away
  38. 1.62 km ESE of Palermo, California · 18507 days ago · 4 km deep · 4 km away
  39. 2.52 km ESE of Palermo, California · 18507 days ago · 4 km deep · 4 km away
  40. 1.82 km SE of Palermo, California · 18507 days ago · 4 km deep · 4 km away
  41. 2.24 km ENE of Palermo, California · 18506 days ago · 2 km deep · 5 km away
  42. 1.62 km ESE of Palermo, California · 18505 days ago · 4 km deep · 4 km away
  43. 2.64 km SE of Palermo, California · 18505 days ago · 4 km deep · 6 km away
  44. 1.9Northern California · 18504 days ago · 1 km deep · 6 km away
  45. 3.35 km ESE of Palermo, California · 18503 days ago · 3 km deep · 7 km away
  46. 2.916 km SW of Durham, California · 18502 days ago · 22 km deep · 37 km away
  47. 3.56 km ESE of Palermo, California · 18502 days ago · 2 km deep · 7 km away
  48. 2.64 km E of Palermo, California · 18502 days ago · 3 km deep · 5 km away
  49. 2.16 km WNW of Bangor, California · 18501 days ago · 3 km deep · 7 km away
  50. 3.54 km SSE of Palermo, California · 18501 days ago · 2 km deep · 6 km away
  51. 1.75 km SSE of Honcut, California · 18501 days ago · 17 km deep · 19 km away
  52. 2.85 km SSE of Palermo, California · 18500 days ago · 3 km deep · 6 km away
  53. 2.34 km SSE of Palermo, California · 18500 days ago · 4 km deep · 6 km away
  54. 1.84 km E of Palermo, California · 18499 days ago · 6 km deep · 4 km away
  55. 1.5Northern California · 18499 days ago · 9 km deep · 8 km away
  56. 1.93 km NE of Palermo, California · 18499 days ago · 4 km deep · 3 km away
  57. 2.81 km NE of Oroville, California · 18496 days ago · 8 km deep · 8 km away
  58. 2.84 km SE of Palermo, California · 18495 days ago · 4 km deep · 6 km away
  59. 2.54 km SSE of Palermo, California · 18495 days ago · 5 km deep · 6 km away
  60. 1.92 km NE of Oroville, California · 18492 days ago · 9 km deep · 9 km away

The first 60 of 69.

Before

  1. 2.21 km NE of South Oroville, California · 18546 days ago · 9 km deep · 6 km away
  2. 2.9Northern California · 18547 days ago · 4 km deep · 3 km away
  3. 2.72 km NE of Palermo, California · 18549 days ago · 4 km deep · 2 km away
  4. 3.21 km NE of South Oroville, California · 18550 days ago · 8 km deep · 7 km away
  5. 2.31 km ESE of Oroville, California · 18550 days ago · 9 km deep · 7 km away
  6. 2.41 km W of Oroville East, California · 18553 days ago · 4 km deep · 8 km away
  7. 2.73 km SSE of Palermo, California · 18554 days ago · 7 km deep · 5 km away
  8. 2.13 km SSE of Palermo, California · 18554 days ago · 7 km deep · 6 km away
  9. 2.76 km WNW of Bangor, California · 18554 days ago · 3 km deep · 7 km away
  10. 2.56 km SE of Palermo, California · 18555 days ago · 2 km deep · 8 km away
  11. 2.16 km W of Bangor, California · 18557 days ago · 3 km deep · 8 km away
  12. 3.33 km ESE of Palermo, California · 18557 days ago · 7 km deep · 5 km away
  13. 2.7Northern California · 18557 days ago · 4 km deep · 6 km away
  14. 2.14 km SE of Palermo, California · 18558 days ago · 3 km deep · 6 km away
  15. 1.6Northern California · 18559 days ago · 2 km deep · 5 km away
  16. 3.11 km WNW of Oroville East, California · 18560 days ago · 4 km deep · 9 km away
  17. 1.65 km S of Oroville East, California · 18561 days ago · 3 km deep · 5 km away
  18. 1.82 km E of Oroville, California · 18562 days ago · 10 km deep · 8 km away
  19. 2.61 km SE of Palermo, California · 18562 days ago · 8 km deep · 3 km away
  20. 1.71 km S of Palermo, California · 18563 days ago · 8 km deep · 3 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1027987. Read Tue, Sep 22, 2026, 10:33 PM UTC.