California earthquakes

M1.7 earthquake 7km N of Piru, CA

A magnitude 1.7 earthquake struck 7km N of Piru, CA on Fri, Oct 1, 2021, 11:11 AM PDT (18:11 UTC), 14 km (9 mi) below the surface.

A larger quake followed: M3.7 14km W of Mojave, CA. This one was a foreshock.

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Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
1.7 (ML, local (Richter)), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2021-10-01 18:11:53 UTC
Depth
13.7 km (8.5 mi), shallow
Epicenter
34.478° N, 118.805° 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 0.4 km horizontally, 1.2 km in depth
Magnitude uncertainty
±0.27
Depth from
From location
Station coverage gap
74°
Stations used
16

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 67 in the 60 days after this one and 32 in the 30 days before it.

After

  1. 3.714km W of Mojave, CA · 1829 days ago · 3 km deep · 79 km away · felt by 129
  2. 1.82km E of Carson, CA · 1828 days ago · 9 km deep · 88 km away · felt by 10
  3. 1.60km E of Carson, CA · 1823 days ago · 9 km deep · 87 km away · felt by 5
  4. 2.015km S of Port Hueneme, CA · 1821 days ago · 2 km deep · 62 km away
  5. 1.813km W of Mojave, CA · 1820 days ago · 5 km deep · 79 km away
  6. 3.324km SE of Santa Cruz Is. (E end), CA · 1818 days ago · 6 km deep · 83 km away · felt by 17
  7. 1.622km NNW of Tehachapi, CA · 1818 days ago · 3 km deep · 97 km away
  8. 1.718km WNW of Grapevine, CA · 1817 days ago · 9 km deep · 66 km away
  9. 1.517km ENE of Lebec, CA · 1816 days ago · 9 km deep · 49 km away
  10. 2.413km WSW of Ojai, CA · 1816 days ago · 13 km deep · 52 km away · felt by 3
  11. 1.619km ENE of Maricopa, CA · 1816 days ago · 22 km deep · 83 km away
  12. 1.51km SE of Sylmar, CA · 1815 days ago · 11 km deep · 39 km away
  13. 1.81km SE of Sylmar, CA · 1815 days ago · 11 km deep · 39 km away · felt by 1
  14. 1.99km W of Grapevine, CA · 1815 days ago · 12 km deep · 54 km away
  15. 1.619km N of Pine Mountain Club, CA · 1815 days ago · 1 km deep · 68 km away
  16. 1.81km S of Commerce, CA · 1813 days ago · 17 km deep · 80 km away · felt by 1
  17. 1.68km W of Frazier Park, CA · 1811 days ago · 12 km deep · 45 km away
  18. 1.822km NNW of Tehachapi, CA · 1810 days ago · 3 km deep · 96 km away
  19. 2.41km NW of View Park-Windsor Hills, CA · 1809 days ago · 8 km deep · 67 km away · felt by 250
  20. 1.72km SE of Simi Valley, CA · 1808 days ago · 12 km deep · 26 km away · felt by 1
  21. 1.812km WSW of Lake Hughes, CA · 1807 days ago · 10 km deep · 28 km away
  22. 1.812km WSW of Lake Hughes, CA · 1807 days ago · 9 km deep · 28 km away
  23. 1.713km WNW of Malibu, CA · 1807 days ago · 10 km deep · 49 km away
  24. 3.63km WSW of East Los Angeles, CA · 1806 days ago · 17 km deep · 76 km away · felt by 3,679
  25. 2.03km WSW of East Los Angeles, CA · 1806 days ago · 16 km deep · 76 km away · felt by 90
  26. 1.69km N of Santa Barbara, CA · 1806 days ago · 10 km deep · 83 km away · felt by 2
  27. 2.614km W of Malibu, CA · 1804 days ago · 15 km deep · 53 km away · felt by 6
  28. 2.219km NW of Tehachapi, CA · 1802 days ago · 7 km deep · 90 km away · felt by 4
  29. 1.716km N of Pine Mountain Club, CA · 1801 days ago · 5 km deep · 64 km away · felt by 3
  30. 1.62km ESE of Lawndale, CA · 1801 days ago · 11 km deep · 79 km away
  31. 1.63km N of Sylmar, CA · 1801 days ago · 3 km deep · 37 km away
  32. 1.725km NNE of Montecito, CA · 1800 days ago · 6 km deep · 68 km away
  33. 1.625km NNE of Montecito, CA · 1800 days ago · 10 km deep · 68 km away
  34. 1.919km WSW of Ventura, CA · 1799 days ago · 2 km deep · 63 km away
  35. 2.319km WSW of Ventura, CA · 1799 days ago · 8 km deep · 63 km away · felt by 1
  36. 1.62km SSW of Sherman Oaks, CA · 1799 days ago · 6 km deep · 50 km away · felt by 6
  37. 2.111km SSW of Rancho Palos Verdes, CA · 1797 days ago · 11 km deep · 97 km away
  38. 2.58km NNW of Malibu, CA · 1797 days ago · 13 km deep · 45 km away · felt by 20
  39. 1.910km WSW of Grapevine, CA · 1796 days ago · 14 km deep · 52 km away
  40. 1.62km SSE of Chatsworth, CA · 1795 days ago · 5 km deep · 33 km away · felt by 1
  41. 1.84km WSW of East Los Angeles, CA · 1793 days ago · 16 km deep · 75 km away
  42. 1.619km NW of Grapevine, CA · 1792 days ago · 22 km deep · 70 km away
  43. 1.61km SE of Sylmar, CA · 1789 days ago · 10 km deep · 39 km away · felt by 1
  44. 2.614km E of Arvin, CA · 1789 days ago · 6 km deep · 82 km away · felt by 24
  45. 2.025km NNE of Montecito, CA · 1783 days ago · 3 km deep · 68 km away
  46. 2.117km SSW of Santa Barbara, CA · 1782 days ago · 1 km deep · 90 km away
  47. 1.718km SSW of Santa Barbara, CA · 1782 days ago · 1 km deep · 90 km away
  48. 1.818km SSW of Santa Barbara, CA · 1782 days ago · 0 km deep · 91 km away
  49. 2.218km SSW of Santa Barbara, CA · 1782 days ago · 2 km deep · 91 km away · felt by 1
  50. 1.618km S of Santa Barbara, CA · 1782 days ago · 2 km deep · 89 km away
  51. 1.718km SSW of Santa Barbara, CA · 1782 days ago · 0 km deep · 90 km away
  52. 2.317km SSW of Santa Barbara, CA · 1782 days ago · 5 km deep · 89 km away · felt by 1
  53. 2.617km SSW of Santa Barbara, CA · 1782 days ago · 2 km deep · 90 km away · felt by 14
  54. 2.922km SSW of Santa Barbara, CA · 1782 days ago · 2 km deep · 92 km away · felt by 15
  55. 1.818km SSW of Santa Barbara, CA · 1782 days ago · 2 km deep · 90 km away
  56. 2.017km SSW of Santa Barbara, CA · 1781 days ago · 0 km deep · 90 km away
  57. 1.930km SE of Santa Cruz Is. (E end), CA · 1781 days ago · 1 km deep · 82 km away
  58. 1.63km WNW of Sylmar, CA · 1780 days ago · 3 km deep · 35 km away · felt by 5
  59. 2.23km S of Frazier Park, CA · 1780 days ago · 14 km deep · 38 km away
  60. 2.220km S of Port Hueneme, CA · 1780 days ago · 11 km deep · 65 km away

The first 60 of 67.

Before

  1. 1.69km NNW of Piru, CA · 1829 days ago · 19 km deep · 2 km away · felt by 1
  2. 1.718km N of Pine Mountain Club, CA · 1831 days ago · 13 km deep · 67 km away
  3. 2.36km NW of Santa Cruz Is. (E end), CA · 1832 days ago · 12 km deep · 82 km away · felt by 1
  4. 1.610km NNE of Ventura, CA · 1832 days ago · 2 km deep · 38 km away · felt by 1
  5. 2.015km NNW of Tehachapi, CA · 1832 days ago · 7 km deep · 89 km away
  6. 1.90km S of Carson, CA · 1833 days ago · 8 km deep · 87 km away · felt by 85
  7. 1.52km E of Carson, CA · 1833 days ago · 8 km deep · 87 km away · felt by 9
  8. 1.816km NW of Tehachapi, CA · 1835 days ago · 6 km deep · 85 km away · felt by 2
  9. 2.61km ESE of Carson, CA · 1837 days ago · 7 km deep · 87 km away · felt by 762
  10. 2.09km S of Lamont, CA · 1839 days ago · 5 km deep · 79 km away
  11. 1.62km E of Carson, CA · 1840 days ago · 9 km deep · 87 km away · felt by 14
  12. 1.612km WNW of Malibu, CA · 1840 days ago · 11 km deep · 49 km away
  13. 2.50km ESE of Carson, CA · 1841 days ago · 11 km deep · 87 km away · felt by 160
  14. 2.02km SE of Carson, CA · 1842 days ago · 11 km deep · 88 km away · felt by 70
  15. 2.66km SE of Mojave, CA · 1842 days ago · 8 km deep · 87 km away · felt by 2
  16. 2.82km ESE of Carson, CA · 1843 days ago · 11 km deep · 88 km away · felt by 411
  17. 4.32km E of Carson, CA · 1843 days ago · 12 km deep · 87 km away · felt by 10,301 · tsunami flag
  18. 2.120km NW of Tehachapi, CA · 1844 days ago · 5 km deep · 91 km away · felt by 1
  19. 1.512km NNE of Pine Mountain Club, CA · 1845 days ago · 9 km deep · 60 km away · felt by 1
  20. 1.721km S of Rosedale, CA · 1845 days ago · 24 km deep · 87 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci37481757. Read Sun, Oct 4, 2026, 9:03 PM UTC.