California earthquakes

M1.7 earthquake 1 km S of Palermo, California

A magnitude 1.7 earthquake struck 1 km S of Palermo, California on Mon, Aug 25, 1975, 5:39 PM PDT (00:39 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M4.6 1 km ENE of 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
1.7 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1975-08-26 00:39:40 UTC
Depth
7.7 km (4.8 mi), shallow
Epicenter
39.423° N, 121.536° 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, 1.4 km in depth
Magnitude uncertainty
±0.02
Depth from
From location
Station coverage gap
88°
Stations used
11

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 at least 200 in the 30 days before it.

After

  1. 2.54 km SE of Palermo, California · 18667 days ago · 6 km deep · 3 km away
  2. 2.35 km SE of Palermo, California · 18667 days ago · 3 km deep · 5 km away
  3. 2.94 km S of Oroville East, California · 18666 days ago · 2 km deep · 7 km away
  4. 2.34 km SSW of Oroville East, California · 18666 days ago · 2 km deep · 7 km away
  5. 1.94 km S of Oroville East, California · 18666 days ago · 2 km deep · 7 km away
  6. 2.84 km S of Oroville East, California · 18666 days ago · 1 km deep · 7 km away
  7. 2.83 km ESE of Palermo, California · 18666 days ago · 3 km deep · 3 km away
  8. 2.91 km S of Palermo, California · 18666 days ago · 7 km deep · 0 km away
  9. 3.13 km SSE of Palermo, California · 18666 days ago · 7 km deep · 2 km away
  10. 2.02 km W of Oroville East, California · 18666 days ago · 6 km deep · 10 km away
  11. 2.65 km ESE of Palermo, California · 18666 days ago · 4 km deep · 5 km away
  12. 2.83 km SE of Palermo, California · 18666 days ago · 7 km deep · 3 km away
  13. 2.13 km ESE of Palermo, California · 18666 days ago · 4 km deep · 3 km away
  14. 1.94 km ESE of Palermo, California · 18666 days ago · 4 km deep · 4 km away
  15. 2.72 km ENE of Oroville, California · 18666 days ago · 9 km deep · 11 km away
  16. 3.12 km SSE of South Oroville, California · 18665 days ago · 9 km deep · 6 km away
  17. 2.33 km S of South Oroville, California · 18665 days ago · 7 km deep · 5 km away
  18. 2.35 km SE of Palermo, California · 18665 days ago · 4 km deep · 5 km away
  19. 2.11 km ENE of South Oroville, California · 18665 days ago · 8 km deep · 9 km away
  20. 2.64 km SE of Palermo, California · 18665 days ago · 4 km deep · 3 km away
  21. 3.14 km SE of Palermo, California · 18661 days ago · 2 km deep · 4 km away
  22. 2.24 km SE of Palermo, California · 18661 days ago · 3 km deep · 4 km away
  23. 2.94 km SSE of Palermo, California · 18660 days ago · 4 km deep · 3 km away
  24. 2.03 km SE of Palermo, California · 18660 days ago · 3 km deep · 3 km away
  25. 2.55 km SE of Palermo, California · 18660 days ago · 3 km deep · 4 km away
  26. 2.02 km NE of Oroville, California · 18660 days ago · 9 km deep · 12 km away
  27. 2.93 km NE of Oroville, California · 18660 days ago · 9 km deep · 13 km away
  28. 1.64 km ESE of Palermo, California · 18659 days ago · 4 km deep · 4 km away
  29. 2.21 km E of Palermo, California · 18659 days ago · 6 km deep · 2 km away
  30. 2.64 km S of Palermo, California · 18659 days ago · 6 km deep · 3 km away
  31. 2.82 km WSW of Oroville East, California · 18658 days ago · 3 km deep · 9 km away
  32. 2.31 km E of South Oroville, California · 18658 days ago · 7 km deep · 8 km away
  33. 3.011 km ESE of Dunnigan, California · 18658 days ago · 9 km deep · 69 km away
  34. 2.23 km SSE of Palermo, California · 18658 days ago · 7 km deep · 2 km away
  35. 2.71 km NE of South Oroville, California · 18657 days ago · 8 km deep · 9 km away
  36. 1.72 km E of South Oroville, California · 18657 days ago · 6 km deep · 8 km away
  37. 2.92 km E of Oroville, California · 18657 days ago · 10 km deep · 10 km away
  38. 3.03 km SE of Palermo, California · 18657 days ago · 6 km deep · 3 km away
  39. 2.40 km S of Palermo, California · 18657 days ago · 8 km deep · 1 km away
  40. 2.31 km NE of South Oroville, California · 18657 days ago · 9 km deep · 9 km away
  41. 2.82 km SSE of Palermo, California · 18656 days ago · 6 km deep · 2 km away
  42. 3.23 km SSE of Palermo, California · 18656 days ago · 5 km deep · 3 km away
  43. 3.53 km SSE of Palermo, California · 18656 days ago · 7 km deep · 2 km away
  44. 3.1Northern California · 18656 days ago · 5 km deep · 3 km away
  45. 2.12 km ESE of Oroville, California · 18655 days ago · 9 km deep · 10 km away
  46. 3.23 km SSE of Palermo, California · 18655 days ago · 6 km deep · 2 km away
  47. 3.33 km SSW of Oroville East, California · 18655 days ago · 4 km deep · 7 km away
  48. 3.21 km N of Palermo, California · 18655 days ago · 6 km deep · 3 km away
  49. 2.84 km SE of Palermo, California · 18654 days ago · 4 km deep · 3 km away
  50. 2.82 km S of Palermo, California · 18654 days ago · 8 km deep · 2 km away
  51. 2.44 km SE of Palermo, California · 18654 days ago · 4 km deep · 3 km away
  52. 2.64 km SSE of Palermo, California · 18654 days ago · 6 km deep · 4 km away
  53. 2.92 km N of Palermo, California · 18654 days ago · 8 km deep · 4 km away
  54. 2.61 km NE of South Oroville, California · 18653 days ago · 9 km deep · 9 km away
  55. 3.03 km ESE of Palermo, California · 18653 days ago · 4 km deep · 3 km away
  56. 3.33 km S of Palermo, California · 18652 days ago · 10 km deep · 2 km away
  57. 2.02 km N of Palermo, California · 18652 days ago · 8 km deep · 4 km away
  58. 2.23 km S of Palermo, California · 18652 days ago · 11 km deep · 3 km away
  59. 2.51 km SE of South Oroville, California · 18652 days ago · 7 km deep · 7 km away
  60. 2.33 km SW of Oroville East, California · 18651 days ago · 6 km deep · 8 km away

The first 60 of at least 199.

Before

  1. 2.8Northern California · 18667 days ago · 5 km deep · 8 km away
  2. 3.11 km WSW of Oroville East, California · 18667 days ago · 4 km deep · 10 km away
  3. 3.02 km NE of South Oroville, California · 18667 days ago · 9 km deep · 10 km away
  4. 3.33 km WSW of Oroville East, California · 18667 days ago · 5 km deep · 8 km away
  5. 3.04 km SE of Palermo, California · 18667 days ago · 5 km deep · 3 km away
  6. 3.21 km WSW of Oroville East, California · 18667 days ago · 4 km deep · 10 km away
  7. 2.14 km ESE of Palermo, California · 18667 days ago · 4 km deep · 4 km away
  8. 2.32 km ENE of Oroville, California · 18667 days ago · 9 km deep · 11 km away
  9. 2.33 km ESE of Palermo, California · 18668 days ago · 4 km deep · 3 km away
  10. 1.52 km SSW of Oroville East, California · 18668 days ago · 3 km deep · 9 km away
  11. 1.65 km ESE of Palermo, California · 18668 days ago · 4 km deep · 5 km away
  12. 2.74 km SSE of Palermo, California · 18668 days ago · 5 km deep · 3 km away
  13. 1.82 km ESE of Palermo, California · 18668 days ago · 6 km deep · 3 km away
  14. 2.65 km ESE of Palermo, California · 18668 days ago · 3 km deep · 5 km away
  15. 3.11 km W of Oroville East, California · 18669 days ago · 4 km deep · 11 km away
  16. 3.31 km WSW of Oroville East, California · 18669 days ago · 5 km deep · 10 km away
  17. 2.33 km E of Palermo, California · 18669 days ago · 5 km deep · 4 km away
  18. 3.12 km SW of Oroville East, California · 18669 days ago · 5 km deep · 9 km away
  19. 3.02 km SW of Oroville East, California · 18669 days ago · 4 km deep · 9 km away
  20. 1.82 km WSW of Oroville East, California · 18669 days ago · 5 km deep · 9 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1025949. Read Sat, Oct 3, 2026, 10:48 PM UTC.