California earthquakes

M1.6 earthquake 13km S of Tres Pinos, CA

A magnitude 1.6 earthquake struck 13km S of Tres Pinos, CA on Wed, Oct 20, 2021, 12:26 PM PDT (19:26 UTC), 4 km (3 mi) below the surface.

A larger quake followed: M2.9 12km S of Tres Pinos, 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
1.6 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-20 19:26:53 UTC
Depth
4.2 km (2.6 mi), shallow
Epicenter
36.678° N, 121.301° 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 0.3 km horizontally, 1.1 km in depth
Magnitude uncertainty
±0.16
Depth from
From location
Station coverage gap
90°
Stations used
24

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 127 in the 60 days after this one and 57 in the 30 days before it.

After

  1. 1.614km S of Tres Pinos, CA · 1808 days ago · 8 km deep · 1 km away
  2. 2.011km SE of Pinnacles, CA · 1808 days ago · 7 km deep · 33 km away
  3. 1.812km S of Tres Pinos, CA · 1808 days ago · 5 km deep · 1 km away
  4. 2.36km SSW of Gilroy, CA · 1807 days ago · 4 km deep · 40 km away · felt by 2
  5. 1.96km ENE of Hollister, CA · 1806 days ago · 8 km deep · 22 km away
  6. 2.15km NE of New Idria, CA · 1806 days ago · 13 km deep · 65 km away
  7. 1.53km SW of Hollister, CA · 1806 days ago · 8 km deep · 20 km away · felt by 1
  8. 2.16km NNW of Pinnacles, CA · 1805 days ago · 7 km deep · 16 km away
  9. 1.67km WNW of Pinnacles, CA · 1805 days ago · 2 km deep · 16 km away
  10. 1.922km NE of Morgan Hill, CA · 1805 days ago · 9 km deep · 67 km away
  11. 2.27km NNW of Pinnacles, CA · 1805 days ago · 7 km deep · 15 km away
  12. 2.17km NNW of Pinnacles, CA · 1804 days ago · 7 km deep · 15 km away
  13. 1.919km NW of San Simeon, CA · 1804 days ago · 6 km deep · 99 km away · felt by 3
  14. 2.218km NNW of San Simeon, CA · 1804 days ago · 6 km deep · 100 km away
  15. 2.020km NNW of San Simeon, CA · 1804 days ago · 5 km deep · 98 km away
  16. 1.918km NNW of San Simeon, CA · 1804 days ago · 6 km deep · 99 km away
  17. 1.618km NNW of San Simeon, CA · 1804 days ago · 5 km deep · 100 km away
  18. 2.68km ENE of Alum Rock, CA · 1804 days ago · 7 km deep · 88 km away · felt by 18
  19. 1.710km S of Tres Pinos, CA · 1803 days ago · 3 km deep · 4 km away
  20. 1.918km NNW of San Simeon, CA · 1803 days ago · 7 km deep · 99 km away
  21. 2.013km S of Tres Pinos, CA · 1803 days ago · 5 km deep · 1 km away
  22. 2.07km NW of Pinnacles, CA · 1803 days ago · 7 km deep · 14 km away
  23. 1.918km NNW of San Simeon, CA · 1802 days ago · 6 km deep · 99 km away
  24. 1.822km NW of Parkfield, CA · 1800 days ago · 0 km deep · 95 km away
  25. 2.38km ESE of Pinnacles, CA · 1800 days ago · 6 km deep · 29 km away
  26. 2.012km S of Tres Pinos, CA · 1800 days ago · 4 km deep · 1 km away
  27. 1.619km NNW of San Simeon, CA · 1799 days ago · 3 km deep · 99 km away
  28. 1.624km NW of San Simeon, CA · 1799 days ago · 13 km deep · 96 km away
  29. 2.32km N of Pinnacles, CA · 1799 days ago · 3 km deep · 20 km away
  30. 1.712km S of Tres Pinos, CA · 1798 days ago · 1 km deep · 1 km away
  31. 1.96km ENE of Pinnacles, CA · 1798 days ago · 10 km deep · 24 km away
  32. 2.311km SE of Pinnacles, CA · 1797 days ago · 7 km deep · 33 km away
  33. 2.210km SE of Pinnacles, CA · 1797 days ago · 6 km deep · 31 km away
  34. 1.612km SE of Pinnacles, CA · 1797 days ago · 8 km deep · 33 km away
  35. 1.95km ENE of Pinnacles, CA · 1796 days ago · 5 km deep · 23 km away
  36. 1.712km SE of Pinnacles, CA · 1796 days ago · 7 km deep · 33 km away
  37. 1.511km SE of Pinnacles, CA · 1795 days ago · 7 km deep · 33 km away
  38. 1.812km SE of Pinnacles, CA · 1795 days ago · 8 km deep · 33 km away
  39. 2.17km NE of San Martin, CA · 1794 days ago · 5 km deep · 54 km away
  40. 1.99km SSE of San Juan Bautista, CA · 1794 days ago · 10 km deep · 21 km away · felt by 2
  41. 1.911km S of Tres Pinos, CA · 1794 days ago · 5 km deep · 3 km away · felt by 1
  42. 1.810km ENE of Morgan Hill, CA · 1794 days ago · 3 km deep · 58 km away
  43. 1.67km WSW of Ridgemark, CA · 1793 days ago · 12 km deep · 16 km away
  44. 1.620km NNW of San Simeon, CA · 1793 days ago · 6 km deep · 98 km away
  45. 2.113km S of Tres Pinos, CA · 1792 days ago · 5 km deep · 1 km away · felt by 1
  46. 2.312km SE of Pinnacles, CA · 1792 days ago · 1 km deep · 34 km away
  47. 2.46km N of Hollister, CA · 1792 days ago · 10 km deep · 26 km away · felt by 12
  48. 1.68km ENE of Gilroy, CA · 1792 days ago · 7 km deep · 43 km away · felt by 1
  49. 2.410km SE of Pinnacles, CA · 1790 days ago · 9 km deep · 31 km away · felt by 4
  50. 1.611km SE of Pinnacles, CA · 1790 days ago · 7 km deep · 32 km away
  51. 2.222km NE of San Lucas, CA · 1789 days ago · 7 km deep · 65 km away
  52. 1.719km NNW of San Simeon, CA · 1789 days ago · 6 km deep · 98 km away
  53. 2.310km SSW of Tres Pinos, CA · 1789 days ago · 5 km deep · 5 km away · felt by 2
  54. 2.315km SE of Tres Pinos, CA · 1788 days ago · 15 km deep · 9 km away
  55. 1.511km NW of Pinnacles, CA · 1788 days ago · 2 km deep · 11 km away
  56. 1.718km NW of San Simeon, CA · 1787 days ago · 7 km deep · 100 km away
  57. 2.15km S of San Juan Bautista, CA · 1785 days ago · 7 km deep · 25 km away · felt by 1
  58. 1.713km SE of Pinnacles, CA · 1785 days ago · 7 km deep · 35 km away
  59. 2.310km S of Lopez Point, CA · 1784 days ago · 12 km deep · 87 km away
  60. 2.311km S of Tres Pinos, CA · 1784 days ago · 6 km deep · 3 km away · felt by 1

The first 60 of 127.

Before

  1. 2.512km S of Tres Pinos, CA · 1810 days ago · 5 km deep · 0 km away · felt by 5
  2. 1.612km S of Tres Pinos, CA · 1810 days ago · 4 km deep · 1 km away · felt by 1
  3. 3.713km S of Tres Pinos, CA · 1810 days ago · 7 km deep · 2 km away · felt by 155
  4. 2.712km S of Tres Pinos, CA · 1810 days ago · 5 km deep · 1 km away · felt by 2
  5. 2.27km N of Pinnacles, CA · 1811 days ago · 8 km deep · 18 km away
  6. 2.94km SSW of San Juan Bautista, CA · 1812 days ago · 7 km deep · 27 km away · felt by 20
  7. 2.26km NNW of Pinnacles, CA · 1812 days ago · 5 km deep · 15 km away · felt by 1
  8. 1.615km NW of Pinnacles, CA · 1813 days ago · 10 km deep · 6 km away
  9. 2.012km S of Tres Pinos, CA · 1813 days ago · 5 km deep · 0 km away
  10. 2.011km SSW of Ridgemark, CA · 1814 days ago · 7 km deep · 11 km away
  11. 2.124km NE of King City, CA · 1814 days ago · 8 km deep · 48 km away · felt by 1
  12. 1.822km NNE of San Ardo, CA · 1816 days ago · 4 km deep · 72 km away
  13. 1.714km SSE of Tres Pinos, CA · 1816 days ago · 2 km deep · 2 km away
  14. 1.76km NNE of Pinnacles, CA · 1816 days ago · 8 km deep · 19 km away
  15. 1.63km W of Fruitdale, CA · 1819 days ago · 5 km deep · 93 km away
  16. 1.511km WSW of Saratoga, CA · 1819 days ago · 8 km deep · 97 km away
  17. 1.611km WSW of Saratoga, CA · 1820 days ago · 8 km deep · 98 km away
  18. 1.711km WSW of Saratoga, CA · 1820 days ago · 8 km deep · 98 km away
  19. 1.612km SE of Pinnacles, CA · 1820 days ago · 7 km deep · 34 km away
  20. 2.16km S of San Juan Bautista, CA · 1820 days ago · 8 km deep · 23 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73642015. Read Sun, Oct 4, 2026, 6:26 AM UTC.