California earthquakes

M1.7 earthquake 20km SSE of Carpinteria, CA

A magnitude 1.7 earthquake struck 20km SSE of Carpinteria, CA on Mon, Apr 3, 1978, 1:18 AM PST (09:18 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M3.9 28km S of Port Hueneme, 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
1.7 (mc), micro
Local time
UTC
1978-04-03 09:18:27 UTC
Depth
16.3 km (10.1 mi), shallow
Epicenter
34.224° N, 119.471° 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 1.0 km horizontally, 2.5 km in depth
Depth from
From location
Station coverage gap
95°
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: 97 in the 60 days after this one and 103 in the 30 days before it.

After

  1. 1.920km S of Carpinteria, CA · 17709 days ago · 15 km deep · 2 km away
  2. 2.19km SW of Santa Barbara Is., CA · 17709 days ago · 6 km deep · 94 km away
  3. 1.518km S of Carpinteria, CA · 17708 days ago · 4 km deep · 2 km away
  4. 2.219km S of Carpinteria, CA · 17708 days ago · 16 km deep · 3 km away
  5. 1.816km SSW of Neenach, CA · 17708 days ago · 12 km deep · 88 km away
  6. 2.712km ESE of Piru, CA · 17708 days ago · 15 km deep · 75 km away
  7. 1.710km ESE of Piru, CA · 17708 days ago · 25 km deep · 73 km away
  8. 2.020km NNE of Santa Cruz Is. (E end), CA · 17708 days ago · 5 km deep · 2 km away
  9. 2.418km SSE of Carpinteria, CA · 17708 days ago · 10 km deep · 1 km away
  10. 2.220km S of Carpinteria, CA · 17706 days ago · 14 km deep · 2 km away
  11. 1.616km N of Santa Cruz Is. (E end), CA · 17706 days ago · 3 km deep · 8 km away
  12. 1.918km S of Carpinteria, CA · 17705 days ago · 14 km deep · 2 km away
  13. 1.620km S of Carpinteria, CA · 17705 days ago · 14 km deep · 2 km away
  14. 2.17km SE of Santa Paula, CA · 17704 days ago · 5 km deep · 43 km away
  15. 1.819km S of Carpinteria, CA · 17702 days ago · 15 km deep · 1 km away
  16. 1.720km N of Santa Cruz Is. (E end), CA · 17702 days ago · 15 km deep · 4 km away
  17. 2.319km S of Carpinteria, CA · 17702 days ago · 16 km deep · 2 km away
  18. 2.318km S of Carpinteria, CA · 17702 days ago · 14 km deep · 2 km away
  19. 1.920km S of Carpinteria, CA · 17702 days ago · 16 km deep · 3 km away
  20. 1.819km S of Carpinteria, CA · 17702 days ago · 15 km deep · 2 km away
  21. 1.915km N of Castaic, CA · 17701 days ago · 14 km deep · 88 km away
  22. 2.319km S of Carpinteria, CA · 17701 days ago · 13 km deep · 2 km away
  23. 1.716km N of Castaic, CA · 17701 days ago · 14 km deep · 88 km away
  24. 1.712km ESE of Piru, CA · 17700 days ago · 19 km deep · 75 km away
  25. 1.816km SSW of Neenach, CA · 17700 days ago · 12 km deep · 88 km away
  26. 1.718km S of Carpinteria, CA · 17700 days ago · 11 km deep · 3 km away
  27. 2.419km S of Carpinteria, CA · 17700 days ago · 12 km deep · 1 km away
  28. 2.020km S of Carpinteria, CA · 17700 days ago · 9 km deep · 1 km away
  29. 1.620km S of Carpinteria, CA · 17700 days ago · 13 km deep · 1 km away
  30. 1.819km S of Carpinteria, CA · 17700 days ago · 11 km deep · 2 km away
  31. 1.616km N of Santa Cruz Is. (E end), CA · 17700 days ago · 0 km deep · 7 km away
  32. 2.420km N of Santa Cruz Is. (E end), CA · 17700 days ago · 10 km deep · 2 km away
  33. 2.320km N of Santa Cruz Is. (E end), CA · 17700 days ago · 15 km deep · 2 km away
  34. 2.219km S of Carpinteria, CA · 17700 days ago · 10 km deep · 1 km away
  35. 2.019km S of Carpinteria, CA · 17699 days ago · 17 km deep · 3 km away
  36. 1.717km N of Santa Cruz Is. (E end), CA · 17698 days ago · 10 km deep · 8 km away
  37. 1.93km SSW of Chatsworth, CA · 17698 days ago · 4 km deep · 78 km away
  38. 3.111km NE of Simi Valley, CA · 17697 days ago · 15 km deep · 75 km away
  39. 2.518km S of Carpinteria, CA · 17697 days ago · 16 km deep · 2 km away
  40. 2.419km N of Santa Cruz Is. (E end), CA · 17697 days ago · 14 km deep · 4 km away
  41. 2.117km N of Santa Cruz Is. (E end), CA · 17697 days ago · 2 km deep · 7 km away
  42. 2.018km N of Santa Cruz Is. (E end), CA · 17697 days ago · 14 km deep · 5 km away
  43. 2.519km S of Carpinteria, CA · 17697 days ago · 15 km deep · 2 km away
  44. 1.818km NNW of Fillmore, CA · 17695 days ago · 21 km deep · 58 km away
  45. 1.720km S of Carpinteria, CA · 17694 days ago · 14 km deep · 2 km away
  46. 1.818km S of Carpinteria, CA · 17694 days ago · 14 km deep · 2 km away
  47. 2.019km S of Carpinteria, CA · 17694 days ago · 14 km deep · 1 km away
  48. 1.719km S of Carpinteria, CA · 17694 days ago · 17 km deep · 2 km away
  49. 1.83km SSE of Malibu Beach, CA · 17692 days ago · 0 km deep · 77 km away
  50. 1.66km NNE of Grapevine, CA · 17691 days ago · 18 km deep · 99 km away
  51. 3.115km WNW of Malibu, CA · 17690 days ago · 14 km deep · 51 km away
  52. 1.716km WNW of Malibu, CA · 17690 days ago · 7 km deep · 49 km away
  53. 2.025km SE of Santa Cruz Is. (E end), CA · 17687 days ago · 0 km deep · 42 km away
  54. 2.022km S of Santa Barbara, CA · 17686 days ago · 6 km deep · 24 km away
  55. 2.38km NE of Santa Clarita, CA · 17685 days ago · 13 km deep · 98 km away
  56. 2.08km SSE of Malibu, CA · 17683 days ago · 12 km deep · 70 km away
  57. 1.67km ENE of Santa Clarita, CA · 17683 days ago · 14 km deep · 98 km away
  58. 2.520km SSW of Port Hueneme, CA · 17682 days ago · 0 km deep · 33 km away
  59. 2.313km WNW of Malibu, CA · 17682 days ago · 8 km deep · 53 km away
  60. 3.512km SW of Isla Vista, CA · 17682 days ago · 1 km deep · 44 km away

The first 60 of 97.

Before

  1. 2.510km N of Ojai, CA · 17710 days ago · 0 km deep · 40 km away
  2. 1.519km S of Carpinteria, CA · 17710 days ago · 14 km deep · 2 km away
  3. 2.019km S of Carpinteria, CA · 17711 days ago · 13 km deep · 2 km away
  4. 1.518km S of Carpinteria, CA · 17711 days ago · 3 km deep · 3 km away
  5. 1.819km S of Carpinteria, CA · 17711 days ago · 13 km deep · 2 km away
  6. 2.418km SSE of Carpinteria, CA · 17711 days ago · 15 km deep · 2 km away
  7. 2.418km SSE of Carpinteria, CA · 17711 days ago · 15 km deep · 2 km away
  8. 2.319km S of Carpinteria, CA · 17711 days ago · 16 km deep · 2 km away
  9. 1.819km S of Carpinteria, CA · 17711 days ago · 14 km deep · 2 km away
  10. 1.720km SSE of Carpinteria, CA · 17711 days ago · 17 km deep · 1 km away
  11. 1.819km S of Carpinteria, CA · 17711 days ago · 16 km deep · 3 km away
  12. 1.919km S of Carpinteria, CA · 17711 days ago · 13 km deep · 3 km away
  13. 1.519km S of Carpinteria, CA · 17711 days ago · 17 km deep · 2 km away
  14. 1.619km S of Carpinteria, CA · 17711 days ago · 14 km deep · 2 km away
  15. 2.219km S of Carpinteria, CA · 17711 days ago · 16 km deep · 3 km away
  16. 1.519km S of Carpinteria, CA · 17711 days ago · 12 km deep · 3 km away
  17. 2.520km S of Carpinteria, CA · 17711 days ago · 15 km deep · 2 km away
  18. 1.99km S of Isla Vista, CA · 17712 days ago · 6 km deep · 36 km away
  19. 2.139km N of San Nicolas Is., CA · 17712 days ago · 6 km deep · 70 km away
  20. 1.818km S of Carpinteria, CA · 17712 days ago · 14 km deep · 2 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3338549. Read Sun, Sep 27, 2026, 10:33 PM UTC.