California earthquakes

M1.7 earthquake 1 km NE of Pacheco, California

A magnitude 1.7 earthquake struck 1 km NE of Pacheco, California on Fri, Oct 8, 1982, 6:05 AM PDT (13:05 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.3 3 km N of Green Valley, California. This one was a foreshock.

Pacheco 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
1982-10-08 13:05:22 UTC
Depth
13.9 km (8.6 mi), shallow
Epicenter
37.998° N, 122.063° 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, 0.5 km in depth
Magnitude uncertainty
±0.19
Depth from
From location
Station coverage gap
80°
Stations used
30

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 55 in the 60 days after this one and 27 in the 30 days before it.

After

  1. 1.68 km ESE of Hidden Valley Lake, California · 16064 days ago · 7 km deep · 94 km away
  2. 2.04 km NNE of Fremont, California · 16064 days ago · 9 km deep · 47 km away
  3. 2.43 km NNE of East Foothills, California · 16061 days ago · 3 km deep · 70 km away
  4. 1.67 km ESE of East Foothills, California · 16060 days ago · 2 km deep · 76 km away
  5. 1.73 km ENE of Alamo, California · 16060 days ago · 10 km deep · 16 km away
  6. 1.94 km N of Kenwood, California · 16058 days ago · 5 km deep · 66 km away
  7. 1.96 km ESE of Roseland, California · 16056 days ago · 9 km deep · 68 km away
  8. 2.41 km NE of Danville, California · 16055 days ago · 7 km deep · 20 km away
  9. 1.610 km E of Blackhawk, California · 16054 days ago · 16 km deep · 30 km away
  10. 2.212 km WSW of Byron, California · 16053 days ago · 10 km deep · 34 km away
  11. 1.66 km WSW of Eldridge, California · 16053 days ago · 8 km deep · 57 km away
  12. 1.66 km S of Calistoga, California · 16052 days ago · 6 km deep · 74 km away
  13. 2.312 km NE of Morgan Hill, California · 16051 days ago · 6 km deep · 99 km away
  14. 1.710 km ESE of Hidden Valley Lake, California · 16047 days ago · 6 km deep · 93 km away
  15. 1.610 km S of Muir Beach, California · 16047 days ago · 13 km deep · 51 km away
  16. 1.87 km S of Sunol, California · 16044 days ago · 7 km deep · 55 km away
  17. 1.710 km SE of Livermore, California · 16041 days ago · 4 km deep · 54 km away
  18. 2.13 km SSW of Green Valley, California · 16038 days ago · 11 km deep · 27 km away
  19. 3.23 km W of Moskowite Corner, California · 16038 days ago · 8 km deep · 52 km away
  20. 2.53 km W of Livermore, California · 16036 days ago · 15 km deep · 42 km away
  21. 2.03 km W of Livermore, California · 16036 days ago · 14 km deep · 42 km away
  22. 2.03 km W of Livermore, California · 16035 days ago · 15 km deep · 42 km away
  23. 1.518 km NW of Diablo Grande, California · 16034 days ago · 4 km deep · 77 km away
  24. 1.612 km ESE of Hidden Valley Lake, California · 16033 days ago · 3 km deep · 90 km away
  25. 1.518 km E of Seven Trees, California · 16033 days ago · 4 km deep · 87 km away
  26. 2.33 km ESE of Los Gatos, California · 16033 days ago · 10 km deep · 88 km away
  27. 1.9Northern California · 16031 days ago · 3 km deep · 30 km away
  28. 1.61 km ENE of East Richmond Heights, California · 16031 days ago · 7 km deep · 21 km away
  29. 2.13 km SE of Larkfield-Wikiup, California · 16030 days ago · 3 km deep · 79 km away
  30. 3.09 km NNE of East Foothills, California · 16027 days ago · 9 km deep · 65 km away
  31. 1.711 km SW of Brentwood, California · 16027 days ago · 15 km deep · 31 km away
  32. 1.57 km SSW of Calistoga, California · 16024 days ago · 5 km deep · 76 km away
  33. 2.211 km NNE of Morgan Hill, California · 16023 days ago · 5 km deep · 93 km away
  34. 2.08 km E of Seven Trees, California · 16023 days ago · 6 km deep · 85 km away
  35. 1.72 km ESE of Pittsburg, California · 16021 days ago · 16 km deep · 18 km away
  36. 1.67 km ESE of Santa Rosa, California · 16020 days ago · 8 km deep · 69 km away
  37. 1.52 km SW of Dublin, California · 16020 days ago · 9 km deep · 36 km away
  38. 2.25 km ESE of Santa Rosa, California · 16017 days ago · 7 km deep · 70 km away
  39. 1.917 km NE of East Foothills, California · 16016 days ago · 7 km deep · 64 km away
  40. 3.33 km N of Green Valley, California · 16016 days ago · 10 km deep · 33 km away
  41. 2.42 km N of Green Valley, California · 16016 days ago · 8 km deep · 32 km away
  42. 1.92 km WSW of Green Valley, California · 16015 days ago · 12 km deep · 29 km away
  43. 2.222 km SE of Livermore, California · 16013 days ago · 5 km deep · 66 km away
  44. 2.021 km SE of Livermore, California · 16013 days ago · 4 km deep · 65 km away
  45. 1.61 km NNW of Diablo, California · 16013 days ago · 8 km deep · 18 km away
  46. 1.712 km NNE of Angwin, California · 16012 days ago · 5 km deep · 83 km away
  47. 1.67 km NNE of Pleasanton, California · 16011 days ago · 9 km deep · 35 km away
  48. 2.09 km NE of Milpitas, California · 16010 days ago · 7 km deep · 61 km away
  49. 2.5Northern California · 16010 days ago · 6 km deep · 52 km away
  50. 1.69 km ESE of East Foothills, California · 16009 days ago · 8 km deep · 78 km away
  51. 1.69 km ESE of East Foothills, California · 16009 days ago · 8 km deep · 78 km away
  52. 1.65 km ESE of Sunol, California · 16008 days ago · 10 km deep · 51 km away
  53. 2.87 km W of Brentwood, California · 16006 days ago · 14 km deep · 25 km away
  54. 1.65 km N of Pittsburg, California · 16006 days ago · 19 km deep · 19 km away
  55. 1.610 km WSW of Brentwood, California · 16006 days ago · 8 km deep · 24 km away

Before

  1. 1.614 km E of Seven Trees, California · 16065 days ago · 3 km deep · 85 km away
  2. 1.88 km ESE of Hidden Valley Lake, California · 16065 days ago · 8 km deep · 94 km away
  3. 1.58 km ESE of East Foothills, California · 16070 days ago · 7 km deep · 77 km away
  4. 2.13 km ENE of Berkeley, California · 16071 days ago · 9 km deep · 20 km away
  5. 2.210 km SW of Brentwood, California · 16071 days ago · 15 km deep · 31 km away
  6. 1.87 km W of Calistoga, California · 16074 days ago · 7 km deep · 84 km away
  7. 1.55 km SE of Cambrian Park, California · 16075 days ago · 0 km deep · 89 km away
  8. 1.513 km N of Morgan Hill, California · 16076 days ago · 7 km deep · 90 km away
  9. 1.84 km WSW of Moskowite Corner, California · 16077 days ago · 9 km deep · 51 km away
  10. 1.817 km NE of East Foothills, California · 16077 days ago · 7 km deep · 63 km away
  11. 1.93 km W of Livermore, California · 16078 days ago · 14 km deep · 42 km away
  12. 1.64 km ESE of San Ramon, California · 16079 days ago · 8 km deep · 29 km away
  13. 2.110 km ESE of Hidden Valley Lake, California · 16080 days ago · 7 km deep · 93 km away
  14. 2.513 km ESE of Hidden Valley Lake, California · 16080 days ago · -1 km deep · 88 km away
  15. 2.39 km ESE of Hidden Valley Lake, California · 16080 days ago · 7 km deep · 94 km away
  16. 1.88 km ESE of Hidden Valley Lake, California · 16082 days ago · 7 km deep · 94 km away
  17. 2.28 km W of Calistoga, California · 16083 days ago · 6 km deep · 85 km away
  18. 1.914 km N of Morgan Hill, California · 16083 days ago · 5 km deep · 90 km away
  19. 1.89 km N of East Foothills, California · 16084 days ago · 6 km deep · 64 km away
  20. 1.82 km ENE of Inverness, California · 16084 days ago · 2 km deep · 69 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1080084. Read Fri, Oct 2, 2026, 5:29 AM UTC.