California earthquakes

M1.5 earthquake 27km ENE of Pine Valley, CA

A magnitude 1.5 earthquake struck 27km ENE of Pine Valley, CA on Mon, Apr 10, 1978, 8:20 PM PST (04:20 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M4.4 14km NNW of Warner Springs, CA. This one was a foreshock.

Pine Valley 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
1.5 (mc), micro
Local time
UTC
1978-04-11 04:20:00 UTC
Depth
6.4 km (4.0 mi), shallow
Epicenter
32.887° N, 116.248° 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 0.7 km horizontally, 18.2 km in depth
Depth from
From location
Station coverage gap
123°
Stations used
8

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 189 in the 60 days after this one and 87 in the 30 days before it.

After

  1. 3.123km W of Progreso, B.C., MX · 17704 days ago · 18 km deep · 52 km away
  2. 2.56km ENE of Imperial, CA · 17704 days ago · 10 km deep · 69 km away
  3. 2.27km ENE of Imperial, CA · 17704 days ago · 10 km deep · 70 km away
  4. 1.67km ENE of Imperial, CA · 17704 days ago · 10 km deep · 69 km away
  5. 1.817km W of Salton City, CA · 17703 days ago · 0 km deep · 47 km away
  6. 2.022km W of Progreso, B.C., MX · 17703 days ago · 11 km deep · 52 km away
  7. 2.011km SW of Puebla, B.C., MX · 17703 days ago · 6 km deep · 87 km away
  8. 1.68km ENE of Heber, CA · 17703 days ago · 10 km deep · 75 km away
  9. 1.810km SE of Anza, CA · 17702 days ago · 11 km deep · 75 km away
  10. 1.88km W of Holtville, CA · 17702 days ago · 10 km deep · 74 km away
  11. 1.57km W of Holtville, CA · 17702 days ago · 6 km deep · 75 km away
  12. 2.16km E of Westmorland, CA · 17702 days ago · 10 km deep · 67 km away
  13. 2.37km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  14. 2.46km WSW of Holtville, CA · 17701 days ago · 10 km deep · 77 km away
  15. 1.86km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  16. 1.96km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  17. 2.27km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  18. 2.37km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  19. 2.37km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  20. 1.77km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  21. 2.37km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  22. 2.47km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  23. 1.76km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  24. 1.57km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  25. 2.37km ENE of Imperial, CA · 17701 days ago · 10 km deep · 70 km away
  26. 2.17km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  27. 2.47km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  28. 1.76km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  29. 2.27km E of Imperial, CA · 17701 days ago · 10 km deep · 70 km away
  30. 1.56km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  31. 2.77km W of Holtville, CA · 17701 days ago · 10 km deep · 74 km away
  32. 2.18km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  33. 2.08km W of Holtville, CA · 17701 days ago · 10 km deep · 74 km away
  34. 2.07km WSW of Holtville, CA · 17701 days ago · 10 km deep · 75 km away
  35. 1.57km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  36. 1.78km NE of Heber, CA · 17701 days ago · 10 km deep · 74 km away
  37. 1.67km ENE of Heber, CA · 17701 days ago · 10 km deep · 74 km away
  38. 1.78km NE of Heber, CA · 17701 days ago · 10 km deep · 74 km away
  39. 1.58km NE of Heber, CA · 17701 days ago · 10 km deep · 74 km away
  40. 1.87km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  41. 1.88km SE of Ocotillo Wells, CA · 17701 days ago · 6 km deep · 28 km away
  42. 1.56km WSW of Holtville, CA · 17701 days ago · 3 km deep · 76 km away
  43. 1.914km SE of Anza, CA · 17701 days ago · 12 km deep · 71 km away
  44. 1.67km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  45. 1.57km ENE of Imperial, CA · 17701 days ago · 10 km deep · 70 km away
  46. 1.86km WSW of Holtville, CA · 17701 days ago · 10 km deep · 76 km away
  47. 1.77km E of Puebla, B.C., MX · 17701 days ago · 10 km deep · 97 km away
  48. 3.243km W of Alberto Oviedo Mota, B.C., MX · 17701 days ago · 6 km deep · 98 km away
  49. 2.28km E of Puebla, B.C., MX · 17701 days ago · 10 km deep · 98 km away
  50. 1.612km N of Borrego Springs, CA · 17701 days ago · 6 km deep · 54 km away
  51. 1.87km E of Puebla, B.C., MX · 17700 days ago · 10 km deep · 97 km away
  52. 1.56km WSW of Holtville, CA · 17700 days ago · 13 km deep · 75 km away
  53. 2.18km ENE of Puebla, B.C., MX · 17700 days ago · 10 km deep · 97 km away
  54. 1.927km ENE of Pine Valley, CA · 17699 days ago · 12 km deep · 5 km away
  55. 1.710km SE of Anza, CA · 17699 days ago · 10 km deep · 74 km away
  56. 1.522km WSW of Westmorland, CA · 17699 days ago · 10 km deep · 40 km away
  57. 2.28km E of North Shore, CA · 17699 days ago · 5 km deep · 79 km away
  58. 2.58km E of North Shore, CA · 17699 days ago · 4 km deep · 80 km away
  59. 2.68km E of North Shore, CA · 17699 days ago · 9 km deep · 80 km away
  60. 1.88km E of North Shore, CA · 17699 days ago · 6 km deep · 80 km away

The first 60 of 189.

Before

  1. 2.022km SE of Ocotillo, CA · 17704 days ago · 5 km deep · 50 km away
  2. 1.614km N of Warner Springs, CA · 17704 days ago · 15 km deep · 68 km away
  3. 1.510km W of Pine Valley, CA · 17705 days ago · 6 km deep · 37 km away
  4. 2.41km SW of Brawley, CA · 17707 days ago · 10 km deep · 67 km away
  5. 2.07km WSW of Holtville, CA · 17707 days ago · 10 km deep · 75 km away
  6. 1.64km SW of Brawley, CA · 17707 days ago · 10 km deep · 65 km away
  7. 1.810km NE of Aguanga, CA · 17707 days ago · 6 km deep · 86 km away
  8. 1.714km WSW of Westmorland, CA · 17709 days ago · 9 km deep · 46 km away
  9. 1.78km W of Calipatria, CA · 17709 days ago · 9 km deep · 67 km away
  10. 2.17km WSW of Holtville, CA · 17709 days ago · 10 km deep · 75 km away
  11. 1.718km W of Westmorland, CA · 17709 days ago · 4 km deep · 43 km away
  12. 2.118km W of Westmorland, CA · 17709 days ago · 5 km deep · 43 km away
  13. 2.118km W of Westmorland, CA · 17709 days ago · 5 km deep · 42 km away
  14. 2.018km W of Westmorland, CA · 17710 days ago · 5 km deep · 43 km away
  15. 1.82km NNW of Palomar Observatory, CA · 17710 days ago · 11 km deep · 80 km away
  16. 2.22km NNE of Palomar Observatory, CA · 17710 days ago · 8 km deep · 79 km away
  17. 1.63km NNE of Ocotillo Wells, CA · 17710 days ago · 11 km deep · 33 km away
  18. 1.58km ESE of Imperial, CA · 17710 days ago · 6 km deep · 71 km away
  19. 1.911km SE of Anza, CA · 17710 days ago · 8 km deep · 73 km away
  20. 1.611km SE of Anza, CA · 17711 days ago · 11 km deep · 73 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3338739. Read Wed, Sep 30, 2026, 12:18 PM UTC.