California earthquakes

M1.5 earthquake 37km S of Ocotillo, CA

A magnitude 1.5 earthquake struck 37km S of Ocotillo, CA on Sat, Jul 31, 2021, 3:12 PM PDT (22:12 UTC), 15 km (9 mi) below the surface.

A larger quake followed: M4.0 12km N of Westmorland, 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
1.5 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-07-31 22:12:46 UTC
Depth
14.8 km (9.2 mi), shallow
Epicenter
32.405° N, 116.058° 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, 0.8 km in depth
Magnitude uncertainty
±0.11
Depth from
From location
Station coverage gap
177°
Stations used
18

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 140 in the 60 days after this one and 76 in the 30 days before it.

After

  1. 1.84km N of Pine Valley, CA · 1890 days ago · 13 km deep · 67 km away
  2. 3.17km SSE of Guadalupe Victoria, B.C., MX · 1889 days ago · 16 km deep · 94 km away
  3. 1.98km SSW of Progreso, B.C., MX · 1889 days ago · 3 km deep · 42 km away
  4. 1.716km N of Ocotillo Wells, CA · 1889 days ago · 10 km deep · 99 km away
  5. 1.915km WNW of Progreso, B.C., MX · 1888 days ago · 8 km deep · 41 km away
  6. 1.89km SW of Niland, CA · 1888 days ago · 2 km deep · 97 km away
  7. 1.616km E of Ocotillo Wells, CA · 1888 days ago · 8 km deep · 82 km away
  8. 1.67km SW of Niland, CA · 1886 days ago · 0 km deep · 99 km away
  9. 2.55km WSW of Primo Tapia, B.C., MX · 1885 days ago · 15 km deep · 88 km away
  10. 3.510km W of Delta, B.C., MX · 1885 days ago · 20 km deep · 71 km away · felt by 1
  11. 1.99km W of Calipatria, CA · 1883 days ago · 9 km deep · 90 km away
  12. 1.88km W of Progreso, B.C., MX · 1883 days ago · 11 km deep · 41 km away
  13. 1.513km E of Borrego Springs, CA · 1883 days ago · 9 km deep · 95 km away
  14. 2.919km N of Ocotillo, CA · 1883 days ago · 9 km deep · 56 km away · felt by 2
  15. 2.010km WSW of Niland, CA · 1882 days ago · 3 km deep · 97 km away
  16. 1.65km WSW of Salton City, CA · 1880 days ago · 3 km deep · 97 km away
  17. 1.515km N of Ocotillo, CA · 1879 days ago · 8 km deep · 52 km away
  18. 2.212km W of Delta, B.C., MX · 1878 days ago · 16 km deep · 70 km away
  19. 2.318km WSW of Delta, B.C., MX · 1878 days ago · 16 km deep · 65 km away
  20. 1.811km W of Calipatria, CA · 1878 days ago · 7 km deep · 91 km away
  21. 2.244km ENE of Ensenada, B.C., MX · 1878 days ago · 11 km deep · 43 km away
  22. 1.88km W of Progreso, B.C., MX · 1876 days ago · 8 km deep · 40 km away
  23. 2.214km N of Ocotillo, CA · 1875 days ago · 9 km deep · 52 km away
  24. 2.214km N of Ocotillo, CA · 1875 days ago · 9 km deep · 51 km away
  25. 1.918km ESE of Ocotillo Wells, CA · 1873 days ago · 1 km deep · 75 km away
  26. 2.818km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 75 km away · felt by 1
  27. 2.118km ESE of Ocotillo Wells, CA · 1873 days ago · 8 km deep · 75 km away
  28. 2.119km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 75 km away
  29. 1.618km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 76 km away
  30. 2.718km ESE of Ocotillo Wells, CA · 1873 days ago · 7 km deep · 75 km away
  31. 2.518km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 75 km away
  32. 2.318km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 75 km away
  33. 1.718km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 76 km away
  34. 1.618km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 75 km away
  35. 2.219km ESE of Ocotillo Wells, CA · 1873 days ago · 3 km deep · 75 km away
  36. 2.018km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 75 km away
  37. 4.018km ESE of Ocotillo Wells, CA · 1873 days ago · 7 km deep · 75 km away · felt by 46
  38. 3.817km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 75 km away · felt by 7
  39. 2.418km ESE of Ocotillo Wells, CA · 1873 days ago · 2 km deep · 75 km away
  40. 1.619km ESE of Ocotillo Wells, CA · 1873 days ago · 7 km deep · 75 km away · felt by 1
  41. 2.018km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 75 km away
  42. 2.518km ESE of Ocotillo Wells, CA · 1873 days ago · 3 km deep · 74 km away
  43. 1.719km ESE of Ocotillo Wells, CA · 1873 days ago · 5 km deep · 75 km away
  44. 2.818km ESE of Ocotillo Wells, CA · 1873 days ago · 3 km deep · 75 km away
  45. 2.127km SE of Ocotillo Wells, CA · 1873 days ago · 10 km deep · 66 km away
  46. 1.927km WSW of Westmorland, CA · 1873 days ago · 11 km deep · 66 km away
  47. 3.418km ESE of Ocotillo Wells, CA · 1873 days ago · 3 km deep · 75 km away · felt by 2
  48. 1.918km ESE of Ocotillo Wells, CA · 1873 days ago · 4 km deep · 75 km away
  49. 1.519km ESE of Ocotillo Wells, CA · 1872 days ago · 5 km deep · 75 km away
  50. 1.620km ESE of Ocotillo Wells, CA · 1872 days ago · 8 km deep · 75 km away
  51. 1.519km ESE of Ocotillo Wells, CA · 1872 days ago · 3 km deep · 75 km away
  52. 1.918km ESE of Ocotillo Wells, CA · 1872 days ago · 3 km deep · 75 km away
  53. 1.614km NW of Ocotillo, CA · 1871 days ago · 9 km deep · 46 km away
  54. 2.512km W of Delta, B.C., MX · 1871 days ago · 3 km deep · 70 km away
  55. 2.48km N of Delta, B.C., MX · 1870 days ago · 11 km deep · 80 km away
  56. 1.519km ESE of Ocotillo Wells, CA · 1870 days ago · 4 km deep · 75 km away
  57. 2.27km N of Delta, B.C., MX · 1870 days ago · 14 km deep · 80 km away
  58. 1.619km ESE of Ocotillo Wells, CA · 1869 days ago · 7 km deep · 75 km away
  59. 4.012km N of Westmorland, CA · 1868 days ago · 7 km deep · 90 km away · felt by 22
  60. 1.611km WNW of Calipatria, CA · 1868 days ago · 7 km deep · 92 km away

The first 60 of 140.

Before

  1. 1.69km SW of Niland, CA · 1892 days ago · 2 km deep · 98 km away
  2. 1.527km SE of Campo, CA · 1892 days ago · 13 km deep · 23 km away
  3. 2.422km SE of Ocotillo, CA · 1893 days ago · 10 km deep · 26 km away
  4. 1.727km ENE of Pine Valley, CA · 1893 days ago · 5 km deep · 61 km away
  5. 1.68km ENE of Imperial, CA · 1893 days ago · 8 km deep · 74 km away
  6. 1.97km ENE of Imperial, CA · 1893 days ago · 9 km deep · 74 km away
  7. 1.712km WSW of Puebla, B.C., MX · 1894 days ago · 16 km deep · 57 km away
  8. 2.310km WNW of Imperial, CA · 1894 days ago · 7 km deep · 65 km away
  9. 2.114km WNW of Progreso, B.C., MX · 1894 days ago · 8 km deep · 42 km away
  10. 2.116km WNW of Progreso, B.C., MX · 1896 days ago · 7 km deep · 41 km away
  11. 1.816km E of Ocotillo, CA · 1897 days ago · 7 km deep · 44 km away
  12. 1.623km SE of Campo, CA · 1899 days ago · 18 km deep · 22 km away
  13. 1.67km WSW of Holtville, CA · 1900 days ago · 9 km deep · 71 km away
  14. 2.07km WSW of Holtville, CA · 1900 days ago · 10 km deep · 71 km away
  15. 2.37km W of Holtville, CA · 1900 days ago · 12 km deep · 72 km away
  16. 1.92km SSW of Brawley, CA · 1901 days ago · 11 km deep · 79 km away
  17. 1.67km W of Holtville, CA · 1901 days ago · 9 km deep · 72 km away
  18. 2.18km W of Holtville, CA · 1901 days ago · 8 km deep · 71 km away
  19. 2.98km W of Holtville, CA · 1901 days ago · 14 km deep · 72 km away · felt by 11
  20. 1.97km W of Holtville, CA · 1901 days ago · 8 km deep · 72 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci39760183. Read Sun, Oct 4, 2026, 8:06 PM UTC.