California earthquakes

M1.8 earthquake 4km WSW of Brawley, CA

A magnitude 1.8 earthquake struck 4km WSW of Brawley, CA on Mon, Mar 27, 1978, 10:41 AM PST (18:41 UTC), 11 km (7 mi) below the surface.

A larger quake followed: M5.0 14km WNW of Alberto Oviedo Mota, B.C., MX. This one was a foreshock.

Brawley 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
1.8 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
1978-03-27 18:41:16 UTC
Depth
11.4 km (7.1 mi), shallow
Epicenter
32.966° N, 115.574° 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 1.1 km horizontally, 2.5 km in depth
Depth from
From location
Station coverage gap
114°
Stations used
12

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 193 in the 60 days after this one and 197 in the 30 days before it.

After

  1. 1.78km W of Calipatria, CA · 17721 days ago · 9 km deep · 19 km away
  2. 2.26km NNE of Guadalupe Victoria, B.C., MX · 17721 days ago · 6 km deep · 83 km away
  3. 1.54km W of Brawley, CA · 17721 days ago · 10 km deep · 1 km away
  4. 1.912km W of Niland, CA · 17721 days ago · 5 km deep · 31 km away
  5. 1.812km W of Niland, CA · 17721 days ago · 5 km deep · 31 km away
  6. 2.022km SE of Ocotillo, CA · 17720 days ago · 12 km deep · 49 km away
  7. 2.08km NNE of Guadalupe Victoria, B.C., MX · 17720 days ago · 6 km deep · 83 km away
  8. 1.62km NNE of Ocotillo Wells, CA · 17720 days ago · 8 km deep · 56 km away
  9. 1.85km N of Guadalupe Victoria, B.C., MX · 17719 days ago · 6 km deep · 84 km away
  10. 1.926km WSW of Westmorland, CA · 17719 days ago · 8 km deep · 30 km away
  11. 2.526km WSW of Westmorland, CA · 17719 days ago · 10 km deep · 30 km away
  12. 1.93km NNW of Guadalupe Victoria, B.C., MX · 17719 days ago · 6 km deep · 84 km away
  13. 1.727km SSW of Ocotillo Wells, CA · 17719 days ago · 7 km deep · 65 km away
  14. 2.112km N of Delta, B.C., MX · 17718 days ago · 5 km deep · 67 km away
  15. 2.212km N of Delta, B.C., MX · 17718 days ago · 6 km deep · 67 km away
  16. 1.68km SSW of Holtville, CA · 17718 days ago · 10 km deep · 28 km away
  17. 1.76km WNW of Holtville, CA · 17718 days ago · 5 km deep · 19 km away
  18. 2.05km SW of Salton City, CA · 17717 days ago · 6 km deep · 51 km away
  19. 1.55km N of Brawley, CA · 17717 days ago · 8 km deep · 7 km away
  20. 1.75km ENE of Westmorland, CA · 17717 days ago · 10 km deep · 10 km away
  21. 1.95km N of Guadalupe Victoria, B.C., MX · 17716 days ago · 6 km deep · 83 km away
  22. 2.07km NE of Imperial, CA · 17716 days ago · 10 km deep · 9 km away
  23. 1.87km NE of Imperial, CA · 17716 days ago · 10 km deep · 10 km away
  24. 1.97km NE of Imperial, CA · 17716 days ago · 10 km deep · 11 km away
  25. 2.43km N of Julian, CA · 17715 days ago · 16 km deep · 97 km away
  26. 1.79km NW of Imperial, CA · 17715 days ago · 10 km deep · 8 km away
  27. 2.410km SW of Puebla, B.C., MX · 17715 days ago · 10 km deep · 54 km away
  28. 2.54km NNW of Guadalupe Victoria, B.C., MX · 17715 days ago · 6 km deep · 83 km away
  29. 1.67km ENE of Imperial, CA · 17715 days ago · 10 km deep · 12 km away
  30. 2.06km SSE of Guadalupe Victoria, B.C., MX · 17715 days ago · 6 km deep · 93 km away
  31. 1.87km ENE of Imperial, CA · 17715 days ago · 10 km deep · 13 km away
  32. 2.222km SW of Westmorland, CA · 17714 days ago · 9 km deep · 22 km away
  33. 2.027km WSW of Westmorland, CA · 17714 days ago · 10 km deep · 30 km away
  34. 2.114km SSE of Bombay Beach, CA · 17714 days ago · 5 km deep · 31 km away
  35. 1.54km NW of Guadalupe Victoria, B.C., MX · 17713 days ago · 0 km deep · 83 km away
  36. 2.42km NW of Guadalupe Victoria, B.C., MX · 17713 days ago · 6 km deep · 85 km away
  37. 1.710km ESE of Puebla, B.C., MX · 17713 days ago · 6 km deep · 58 km away
  38. 1.58km ESE of Imperial, CA · 17713 days ago · 6 km deep · 17 km away
  39. 1.63km NNE of Ocotillo Wells, CA · 17712 days ago · 11 km deep · 56 km away
  40. 2.018km W of Westmorland, CA · 17712 days ago · 5 km deep · 23 km away
  41. 2.118km W of Westmorland, CA · 17712 days ago · 5 km deep · 23 km away
  42. 2.118km W of Westmorland, CA · 17712 days ago · 5 km deep · 23 km away
  43. 1.718km W of Westmorland, CA · 17712 days ago · 4 km deep · 23 km away
  44. 1.76km N of Guadalupe Victoria, B.C., MX · 17712 days ago · 6 km deep · 82 km away
  45. 2.17km WSW of Holtville, CA · 17712 days ago · 10 km deep · 23 km away
  46. 1.78km W of Calipatria, CA · 17711 days ago · 9 km deep · 19 km away
  47. 1.714km WSW of Westmorland, CA · 17711 days ago · 9 km deep · 18 km away
  48. 2.14km N of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 84 km away
  49. 1.96km NNE of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 83 km away
  50. 2.23km NW of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 84 km away
  51. 1.910km NNE of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 81 km away
  52. 1.91km NNW of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 86 km away
  53. 2.44km N of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 84 km away
  54. 3.24km N of Guadalupe Victoria, B.C., MX · 17710 days ago · 6 km deep · 84 km away
  55. 3.37km ENE of Delta, B.C., MX · 17710 days ago · 6 km deep · 79 km away
  56. 2.18km E of Delta, B.C., MX · 17710 days ago · 6 km deep · 80 km away
  57. 1.64km SW of Brawley, CA · 17710 days ago · 10 km deep · 3 km away
  58. 2.13km NNE of Guadalupe Victoria, B.C., MX · 17709 days ago · 6 km deep · 85 km away
  59. 2.07km WSW of Holtville, CA · 17709 days ago · 10 km deep · 23 km away
  60. 2.41km SW of Brawley, CA · 17709 days ago · 10 km deep · 4 km away

The first 60 of 193.

Before

  1. 3.23km NNW of Guadalupe Victoria, B.C., MX · 17722 days ago · 10 km deep · 85 km away
  2. 1.624km SSW of Ocotillo Wells, CA · 17722 days ago · 7 km deep · 63 km away
  3. 1.85km N of Brawley, CA · 17722 days ago · 10 km deep · 7 km away
  4. 1.64km N of Guadalupe Victoria, B.C., MX · 17723 days ago · 10 km deep · 84 km away
  5. 1.913km N of Borrego Springs, CA · 17723 days ago · 9 km deep · 89 km away
  6. 1.819km WNW of Progreso, B.C., MX · 17723 days ago · 8 km deep · 37 km away
  7. 1.921km ENE of Thermal, CA · 17723 days ago · 2 km deep · 93 km away
  8. 1.95km SW of Salton City, CA · 17723 days ago · 7 km deep · 51 km away
  9. 1.811km W of Delta, B.C., MX · 17723 days ago · 6 km deep · 72 km away
  10. 1.912km SW of Hermosillo, B.C., MX · 17723 days ago · 6 km deep · 79 km away
  11. 1.96km SSE of Westmorland, CA · 17724 days ago · 9 km deep · 4 km away
  12. 1.99km SSE of Bombay Beach, CA · 17724 days ago · 4 km deep · 36 km away
  13. 2.29km SSE of Bombay Beach, CA · 17724 days ago · 4 km deep · 36 km away
  14. 1.75km N of Guadalupe Victoria, B.C., MX · 17725 days ago · 6 km deep · 82 km away
  15. 2.23km N of Guadalupe Victoria, B.C., MX · 17725 days ago · 6 km deep · 85 km away
  16. 2.06km NNW of Guadalupe Victoria, B.C., MX · 17726 days ago · 6 km deep · 82 km away
  17. 1.97km N of Guadalupe Victoria, B.C., MX · 17726 days ago · 6 km deep · 82 km away
  18. 1.68km ENE of Imperial, CA · 17726 days ago · 3 km deep · 12 km away
  19. 1.627km ENE of Pine Valley, CA · 17726 days ago · 6 km deep · 64 km away
  20. 2.330km W of Alberto Oviedo Mota, B.C., MX · 17726 days ago · 6 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci3338372. Read Fri, Oct 2, 2026, 11:11 PM UTC.