California earthquakes

M1.5 earthquake 11km WSW of Saratoga, CA

A magnitude 1.5 earthquake struck 11km WSW of Saratoga, CA on Sun, Oct 10, 2021, 12:35 PM PDT (19:35 UTC), 8 km (5 mi) below the surface.

A larger quake followed: M3.9 1km NE of San Ramon, CA. This one was a foreshock.

Saratoga 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
1.5 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
2021-10-10 19:35:34 UTC
Depth
8.3 km (5.2 mi), shallow
Epicenter
37.236° N, 122.144° 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, 0.7 km in depth
Magnitude uncertainty
±0.17
Depth from
From location
Station coverage gap
94°
Stations used
21

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 101 in the 60 days after this one and 52 in the 30 days before it.

After

  1. 1.63km W of Fruitdale, CA · 1818 days ago · 5 km deep · 18 km away
  2. 2.13km WNW of Crockett, CA · 1817 days ago · 8 km deep · 92 km away · felt by 4
  3. 1.714km SSE of Tres Pinos, CA · 1816 days ago · 2 km deep · 99 km away
  4. 2.011km SSW of Ridgemark, CA · 1814 days ago · 7 km deep · 86 km away
  5. 2.816km SSE of Livermore, CA · 1813 days ago · 3 km deep · 52 km away · felt by 70
  6. 2.012km S of Tres Pinos, CA · 1812 days ago · 5 km deep · 97 km away
  7. 1.65km SW of Clayton, CA · 1811 days ago · 10 km deep · 76 km away
  8. 2.94km SSW of San Juan Bautista, CA · 1811 days ago · 7 km deep · 71 km away · felt by 20
  9. 1.69km SE of Sunol, CA · 1811 days ago · 9 km deep · 44 km away
  10. 1.91km S of San Ramon, CA · 1811 days ago · 8 km deep · 61 km away · felt by 4
  11. 1.610km NE of Milpitas, CA · 1810 days ago · 4 km deep · 40 km away
  12. 2.712km S of Tres Pinos, CA · 1809 days ago · 5 km deep · 97 km away · felt by 2
  13. 3.713km S of Tres Pinos, CA · 1809 days ago · 7 km deep · 97 km away · felt by 155
  14. 1.612km S of Tres Pinos, CA · 1809 days ago · 4 km deep · 96 km away · felt by 1
  15. 2.512km S of Tres Pinos, CA · 1809 days ago · 5 km deep · 97 km away · felt by 5
  16. 1.613km S of Tres Pinos, CA · 1809 days ago · 4 km deep · 97 km away
  17. 1.614km S of Tres Pinos, CA · 1808 days ago · 8 km deep · 98 km away
  18. 1.812km S of Tres Pinos, CA · 1807 days ago · 5 km deep · 96 km away
  19. 2.14km ENE of El Sobrante, CA · 1807 days ago · 9 km deep · 85 km away · felt by 3
  20. 2.84km ENE of El Sobrante, CA · 1806 days ago · 10 km deep · 84 km away · felt by 328
  21. 2.04km ENE of El Sobrante, CA · 1806 days ago · 9 km deep · 85 km away · felt by 2
  22. 2.36km SSW of Gilroy, CA · 1806 days ago · 4 km deep · 58 km away · felt by 2
  23. 1.61km SW of Alamo, CA · 1806 days ago · 9 km deep · 68 km away
  24. 1.96km ENE of Hollister, CA · 1806 days ago · 8 km deep · 82 km away
  25. 1.53km SW of Hollister, CA · 1806 days ago · 8 km deep · 79 km away · felt by 1
  26. 1.64km ENE of Burlingame, CA · 1805 days ago · 8 km deep · 44 km away · felt by 2
  27. 1.922km NE of Morgan Hill, CA · 1804 days ago · 9 km deep · 60 km away
  28. 2.68km ENE of Alum Rock, CA · 1804 days ago · 7 km deep · 40 km away · felt by 18
  29. 1.710km S of Tres Pinos, CA · 1802 days ago · 3 km deep · 93 km away
  30. 2.013km S of Tres Pinos, CA · 1802 days ago · 5 km deep · 97 km away
  31. 2.012km S of Tres Pinos, CA · 1800 days ago · 4 km deep · 97 km away
  32. 2.09km SW of Brentwood, CA · 1798 days ago · 17 km deep · 77 km away
  33. 1.52km SW of San Francisco Zoo, CA · 1798 days ago · 7 km deep · 63 km away · felt by 1
  34. 1.712km S of Tres Pinos, CA · 1798 days ago · 1 km deep · 97 km away
  35. 1.61km SSE of San Ramon, CA · 1796 days ago · 8 km deep · 61 km away
  36. 1.66km N of San Leandro, CA · 1796 days ago · 9 km deep · 61 km away
  37. 1.511km SW of Mountain House, CA · 1794 days ago · 17 km deep · 70 km away
  38. 2.17km NE of San Martin, CA · 1794 days ago · 5 km deep · 54 km away
  39. 2.61km W of Kensington, CA · 1794 days ago · 5 km deep · 76 km away · felt by 1,893
  40. 1.99km SSE of San Juan Bautista, CA · 1794 days ago · 10 km deep · 77 km away · felt by 2
  41. 2.31km W of Kensington, CA · 1793 days ago · 5 km deep · 76 km away · felt by 162
  42. 1.911km S of Tres Pinos, CA · 1793 days ago · 5 km deep · 94 km away · felt by 1
  43. 1.810km ENE of Morgan Hill, CA · 1793 days ago · 3 km deep · 53 km away
  44. 1.67km WSW of Ridgemark, CA · 1793 days ago · 12 km deep · 81 km away
  45. 2.113km S of Tres Pinos, CA · 1792 days ago · 5 km deep · 98 km away · felt by 1
  46. 2.46km N of Hollister, CA · 1792 days ago · 10 km deep · 76 km away · felt by 12
  47. 1.68km ENE of Gilroy, CA · 1791 days ago · 7 km deep · 62 km away · felt by 1
  48. 2.310km SSW of Tres Pinos, CA · 1789 days ago · 5 km deep · 93 km away · felt by 2
  49. 2.05km E of Fremont, CA · 1787 days ago · 9 km deep · 39 km away · felt by 3
  50. 2.15km S of San Juan Bautista, CA · 1785 days ago · 7 km deep · 72 km away · felt by 1
  51. 2.311km S of Tres Pinos, CA · 1783 days ago · 6 km deep · 94 km away · felt by 1
  52. 1.913km S of Tres Pinos, CA · 1782 days ago · 6 km deep · 96 km away
  53. 3.91km NE of San Ramon, CA · 1781 days ago · 10 km deep · 63 km away · felt by 4,732
  54. 3.22km NE of San Ramon, CA · 1781 days ago · 10 km deep · 64 km away
  55. 2.51km NE of San Ramon, CA · 1781 days ago · 9 km deep · 64 km away · felt by 39
  56. 2.11km NNE of San Ramon, CA · 1781 days ago · 10 km deep · 64 km away
  57. 2.31km NE of San Ramon, CA · 1781 days ago · 9 km deep · 63 km away · felt by 3
  58. 1.71km NE of San Ramon, CA · 1781 days ago · 9 km deep · 63 km away
  59. 3.01km NE of San Ramon, CA · 1781 days ago · 9 km deep · 63 km away · felt by 259
  60. 1.52km NE of San Ramon, CA · 1781 days ago · 9 km deep · 64 km away · felt by 1

The first 60 of 101.

Before

  1. 1.611km WSW of Saratoga, CA · 1819 days ago · 8 km deep · 0 km away
  2. 1.711km WSW of Saratoga, CA · 1820 days ago · 8 km deep · 1 km away
  3. 2.16km S of San Juan Bautista, CA · 1820 days ago · 8 km deep · 74 km away
  4. 2.516km SSW of Bonny Doon, CA · 1820 days ago · 5 km deep · 37 km away · felt by 10
  5. 1.612km W of Saratoga, CA · 1821 days ago · 8 km deep · 1 km away
  6. 1.64km SSW of San Francisco Zoo, CA · 1822 days ago · 7 km deep · 61 km away · felt by 1
  7. 2.14km WSW of Alamo, CA · 1822 days ago · 15 km deep · 67 km away · felt by 3
  8. 2.16km SSW of Moraga, CA · 1823 days ago · 10 km deep · 61 km away · felt by 6
  9. 1.95km SW of Pacheco, CA · 1823 days ago · 10 km deep · 80 km away · felt by 1
  10. 1.913km S of Tres Pinos, CA · 1824 days ago · 3 km deep · 98 km away · felt by 1
  11. 1.82km SE of Pacheco, CA · 1824 days ago · 15 km deep · 82 km away
  12. 2.213km S of Tres Pinos, CA · 1824 days ago · 4 km deep · 97 km away · felt by 1
  13. 1.61km S of Blackhawk, CA · 1824 days ago · 9 km deep · 67 km away
  14. 2.70km N of Byron, CA · 1825 days ago · 4 km deep · 84 km away · felt by 48
  15. 1.85km SW of San Francisco Zoo, CA · 1826 days ago · 7 km deep · 63 km away
  16. 2.019km NE of Alum Rock, CA · 1826 days ago · 6 km deep · 50 km away
  17. 3.312km NNE of Morgan Hill, CA · 1826 days ago · 4 km deep · 47 km away · felt by 103
  18. 1.53km N of San Leandro, CA · 1827 days ago · 6 km deep · 57 km away · felt by 14
  19. 3.43km N of San Leandro, CA · 1827 days ago · 6 km deep · 57 km away · felt by 1,793
  20. 1.78km NNE of Alum Rock, CA · 1827 days ago · 4 km deep · 38 km away · felt by 1

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc73638020. Read Sat, Oct 3, 2026, 8:17 PM UTC.