California earthquakes

M2.2 earthquake 2 km NNW of Aromas, California

A magnitude 2.2 earthquake struck 2 km NNW of Aromas, California on Sun, Apr 20, 1980, 9:56 PM PST (05:56 UTC), 10 km (6 mi) below the surface.

A larger quake followed: M2.5 17 km ENE of East Foothills, 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
2.2 (md), micro
Local time
UTC
1980-04-21 05:56:19 UTC
Depth
10.4 km (6.4 mi), shallow
Epicenter
36.908° N, 121.651° 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 0.2 km horizontally, 0.6 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
55°
Stations used
42

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 168 in the 60 days after this one and 4 in the 30 days before it.

After

  1. 1.66 km SSE of San Juan Bautista, California · 16956 days ago · 6 km deep · 19 km away
  2. 1.74 km N of East Foothills, California · 16955 days ago · 2 km deep · 59 km away
  3. 1.621 km NE of Soledad, California · 16955 days ago · 8 km deep · 58 km away
  4. 1.87 km SE of San Juan Bautista, California · 16954 days ago · 4 km deep · 20 km away
  5. 1.76 km SSE of Livermore, California · 16953 days ago · 5 km deep · 81 km away
  6. 1.89 km NE of Gilroy, California · 16953 days ago · 9 km deep · 23 km away
  7. 2.517 km ENE of East Foothills, California · 16952 days ago · 5 km deep · 58 km away
  8. 1.625 km NE of Greenfield, California · 16952 days ago · 4 km deep · 73 km away
  9. 1.68 km SE of Livermore, California · 16952 days ago · 6 km deep · 81 km away
  10. 1.79 km SE of Livermore, California · 16952 days ago · 6 km deep · 80 km away
  11. 2.618 km ENE of East Foothills, California · 16951 days ago · 6 km deep · 58 km away
  12. 1.92 km SW of Ridgemark, California · 16951 days ago · 8 km deep · 27 km away
  13. 1.65 km ENE of Hollister, California · 16951 days ago · 6 km deep · 28 km away
  14. 3.113 km ESE of Alum Rock, California · 16951 days ago · 7 km deep · 45 km away
  15. 2.127 km ENE of Soledad, California · 16951 days ago · 11 km deep · 65 km away
  16. 2.626 km ENE of Soledad, California · 16951 days ago · 10 km deep · 65 km away
  17. 2.0Northern California · 16950 days ago · 7 km deep · 61 km away
  18. 2.411 km NNE of Livermore, California · 16950 days ago · 8 km deep · 98 km away
  19. 1.9Central California · 16950 days ago · 2 km deep · 40 km away
  20. 1.9Northern California · 16950 days ago · 5 km deep · 43 km away
  21. 1.912 km S of Tres Pinos, California · 16950 days ago · 2 km deep · 40 km away
  22. 1.95 km SSE of San Juan Bautista, California · 16950 days ago · 6 km deep · 17 km away
  23. 1.66 km SSE of San Juan Bautista, California · 16949 days ago · 7 km deep · 18 km away
  24. 1.91 km ESE of Aromas, California · 16948 days ago · 8 km deep · 3 km away
  25. 2.36 km SSE of San Juan Bautista, California · 16948 days ago · 6 km deep · 18 km away
  26. 1.76 km SSE of San Juan Bautista, California · 16948 days ago · 6 km deep · 18 km away
  27. 2.03 km S of Fairview, California · 16948 days ago · 3 km deep · 89 km away
  28. 3.33 km S of San Juan Bautista, California · 16948 days ago · 8 km deep · 15 km away
  29. 2.63 km S of San Juan Bautista, California · 16948 days ago · 6 km deep · 15 km away
  30. 1.89 km SSW of Tres Pinos, California · 16948 days ago · 2 km deep · 35 km away
  31. 2.09 km ENE of Morgan Hill, California · 16948 days ago · 5 km deep · 29 km away
  32. 1.810 km S of Tres Pinos, California · 16947 days ago · 4 km deep · 38 km away
  33. 2.04 km SSW of Gilroy, California · 16947 days ago · 6 km deep · 8 km away
  34. 1.623 km ENE of King City, California · 16946 days ago · 4 km deep · 93 km away
  35. 1.59 km NE of San Martin, California · 16946 days ago · 7 km deep · 27 km away
  36. 1.712 km SW of Gonzales, California · 16946 days ago · 40 km deep · 53 km away
  37. 2.98 km NE of Gilroy, California · 16946 days ago · 7 km deep · 22 km away
  38. 2.08 km NE of Gilroy, California · 16946 days ago · 6 km deep · 22 km away
  39. 2.36 km SSE of San Juan Bautista, California · 16946 days ago · 8 km deep · 18 km away
  40. 2.321 km NE of Soledad, California · 16946 days ago · 3 km deep · 58 km away
  41. 2.320 km SSE of Tres Pinos, California · 16946 days ago · 5 km deep · 50 km away
  42. 2.524 km NE of Greenfield, California · 16946 days ago · 5 km deep · 73 km away
  43. 2.30 km WSW of Ridgemark, California · 16945 days ago · 5 km deep · 27 km away
  44. 2.224 km NE of Greenfield, California · 16945 days ago · 6 km deep · 72 km away
  45. 2.520 km SSE of Tres Pinos, California · 16945 days ago · 5 km deep · 50 km away
  46. 2.622 km NE of Soledad, California · 16945 days ago · 3 km deep · 55 km away
  47. 1.913 km W of Gustine, California · 16944 days ago · 3 km deep · 58 km away
  48. 1.621 km SE of Tres Pinos, California · 16944 days ago · 8 km deep · 52 km away
  49. 1.618 km SSE of Big Sur, California · 16944 days ago · 4 km deep · 89 km away
  50. 1.823 km ENE of Soledad, California · 16943 days ago · 3 km deep · 69 km away
  51. 2.06 km NE of Hollister, California · 16943 days ago · 8 km deep · 27 km away
  52. 1.6Northern California · 16943 days ago · 1 km deep · 84 km away
  53. 2.024 km NE of Greenfield, California · 16942 days ago · 6 km deep · 73 km away
  54. 1.73 km N of Hollister, California · 16942 days ago · 8 km deep · 22 km away
  55. 1.5Northern California · 16942 days ago · 9 km deep · 23 km away
  56. 1.714 km SSE of Tres Pinos, California · 16942 days ago · 4 km deep · 42 km away
  57. 1.723 km NE of Greenfield, California · 16942 days ago · 5 km deep · 73 km away
  58. 1.622 km NE of Soledad, California · 16941 days ago · 8 km deep · 62 km away
  59. 2.23 km SSE of San Juan Bautista, California · 16941 days ago · 4 km deep · 15 km away
  60. 2.110 km N of Hollister, California · 16941 days ago · 9 km deep · 24 km away

The first 60 of 168.

Before

  1. 2.45 km ESE of San Ramon, California · 16956 days ago · 7 km deep · 97 km away
  2. 1.99 km ENE of Gilroy, California · 16956 days ago · 9 km deep · 22 km away
  3. 1.715 km E of Tres Pinos, California · 16956 days ago · 0 km deep · 47 km away
  4. 1.911 km S of Tres Pinos, California · 16956 days ago · 4 km deep · 38 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1052321. Read Tue, Sep 22, 2026, 11:24 PM UTC.