California earthquakes

M1.6 earthquake 27km ENE of Pine Valley, CA

A magnitude 1.6 earthquake struck 27km ENE of Pine Valley, CA on Wed, Mar 22, 1978, 10:20 AM PST (18:20 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M2.0 22km SE of Ocotillo, CA. 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
1.6 (mh), micro
Local time
UTC
1978-03-22 18:20:50 UTC
Depth
5.9 km (3.7 mi), shallow
Epicenter
32.892° N, 116.253° 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 0.5 km horizontally, 14.2 km in depth
Depth from
From location
Station coverage gap
87°
Stations used
7

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 188 in the 60 days after this one and 0 in the 30 days before it.

After

  1. 2.022km SE of Ocotillo, CA · 17697 days ago · 5 km deep · 51 km away
  2. 1.527km ENE of Pine Valley, CA · 17697 days ago · 6 km deep · 1 km away
  3. 3.123km W of Progreso, B.C., MX · 17697 days ago · 18 km deep · 53 km away
  4. 2.56km ENE of Imperial, CA · 17696 days ago · 10 km deep · 69 km away
  5. 2.27km ENE of Imperial, CA · 17696 days ago · 10 km deep · 70 km away
  6. 1.67km ENE of Imperial, CA · 17696 days ago · 10 km deep · 70 km away
  7. 1.817km W of Salton City, CA · 17696 days ago · 0 km deep · 46 km away
  8. 2.022km W of Progreso, B.C., MX · 17696 days ago · 11 km deep · 53 km away
  9. 2.011km SW of Puebla, B.C., MX · 17695 days ago · 6 km deep · 87 km away
  10. 1.68km ENE of Heber, CA · 17695 days ago · 10 km deep · 75 km away
  11. 1.810km SE of Anza, CA · 17694 days ago · 11 km deep · 74 km away
  12. 1.88km W of Holtville, CA · 17694 days ago · 10 km deep · 74 km away
  13. 1.57km W of Holtville, CA · 17694 days ago · 6 km deep · 75 km away
  14. 2.16km E of Westmorland, CA · 17694 days ago · 10 km deep · 67 km away
  15. 2.37km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  16. 2.46km WSW of Holtville, CA · 17694 days ago · 10 km deep · 77 km away
  17. 1.86km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  18. 1.96km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  19. 2.27km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  20. 2.37km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  21. 2.37km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  22. 1.77km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  23. 2.37km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  24. 2.47km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  25. 1.76km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  26. 1.57km WSW of Holtville, CA · 17694 days ago · 10 km deep · 77 km away
  27. 2.37km ENE of Imperial, CA · 17694 days ago · 10 km deep · 70 km away
  28. 2.17km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  29. 2.47km WSW of Holtville, CA · 17694 days ago · 10 km deep · 75 km away
  30. 1.76km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  31. 2.27km E of Imperial, CA · 17694 days ago · 10 km deep · 71 km away
  32. 1.56km WSW of Holtville, CA · 17694 days ago · 10 km deep · 77 km away
  33. 2.77km W of Holtville, CA · 17694 days ago · 10 km deep · 75 km away
  34. 2.18km WSW of Holtville, CA · 17694 days ago · 10 km deep · 75 km away
  35. 2.08km W of Holtville, CA · 17694 days ago · 10 km deep · 74 km away
  36. 2.07km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  37. 1.57km WSW of Holtville, CA · 17694 days ago · 10 km deep · 77 km away
  38. 1.78km NE of Heber, CA · 17694 days ago · 10 km deep · 75 km away
  39. 1.67km ENE of Heber, CA · 17694 days ago · 10 km deep · 75 km away
  40. 1.78km NE of Heber, CA · 17694 days ago · 10 km deep · 75 km away
  41. 1.58km NE of Heber, CA · 17694 days ago · 10 km deep · 74 km away
  42. 1.87km WSW of Holtville, CA · 17694 days ago · 10 km deep · 76 km away
  43. 1.88km SE of Ocotillo Wells, CA · 17694 days ago · 6 km deep · 28 km away
  44. 1.56km WSW of Holtville, CA · 17693 days ago · 3 km deep · 77 km away
  45. 1.914km SE of Anza, CA · 17693 days ago · 12 km deep · 71 km away
  46. 1.67km WSW of Holtville, CA · 17693 days ago · 10 km deep · 77 km away
  47. 1.57km ENE of Imperial, CA · 17693 days ago · 10 km deep · 70 km away
  48. 1.86km WSW of Holtville, CA · 17693 days ago · 10 km deep · 76 km away
  49. 1.77km E of Puebla, B.C., MX · 17693 days ago · 10 km deep · 98 km away
  50. 3.243km W of Alberto Oviedo Mota, B.C., MX · 17693 days ago · 6 km deep · 99 km away
  51. 2.28km E of Puebla, B.C., MX · 17693 days ago · 10 km deep · 98 km away
  52. 1.612km N of Borrego Springs, CA · 17693 days ago · 6 km deep · 54 km away
  53. 1.87km E of Puebla, B.C., MX · 17693 days ago · 10 km deep · 98 km away
  54. 1.56km WSW of Holtville, CA · 17693 days ago · 13 km deep · 76 km away
  55. 2.18km ENE of Puebla, B.C., MX · 17692 days ago · 10 km deep · 98 km away
  56. 1.927km ENE of Pine Valley, CA · 17692 days ago · 12 km deep · 4 km away
  57. 1.710km SE of Anza, CA · 17692 days ago · 10 km deep · 74 km away
  58. 1.522km WSW of Westmorland, CA · 17691 days ago · 10 km deep · 40 km away
  59. 2.28km E of North Shore, CA · 17691 days ago · 5 km deep · 79 km away
  60. 2.58km E of North Shore, CA · 17691 days ago · 4 km deep · 80 km away

The first 60 of 188.

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3338272. Read Tue, Sep 22, 2026, 8:50 PM UTC.