California earthquakes

M1.6 earthquake 20 km WSW of Patterson, CA

A magnitude 1.6 earthquake struck 20 km WSW of Patterson, CA on Thu, Feb 26, 2026, 6:24 AM PST (14:24 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M4.6 1 km SE of Boulder Creek, 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
2026-02-26 14:24:50 UTC
Depth
2.3 km (1.4 mi), shallow
Epicenter
37.394° N, 121.336° 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, 1.9 km in depth
Magnitude uncertainty
±0.10
Depth from
From location
Station coverage gap
49°
Stations used
22

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 121 in the 60 days after this one and 179 in the 30 days before it.

After

  1. 1.811 km SSW of Tres Pinos, CA · 216 days ago · 0 km deep · 76 km away
  2. 2.53 km SE of Aromas, CA · 216 days ago · 6 km deep · 63 km away
  3. 2.53 km SE of Aromas, CA · 216 days ago · 7 km deep · 63 km away · felt by 2
  4. 3.24 km SE of San Ramon, CA · 215 days ago · 7 km deep · 67 km away · felt by 317
  5. 1.84 km SE of San Ramon, CA · 215 days ago · 7 km deep · 67 km away · felt by 2
  6. 2.45 km ESE of San Ramon, CA · 215 days ago · 4 km deep · 66 km away · felt by 2
  7. 1.94 km ESE of San Ramon, CA · 215 days ago · 8 km deep · 67 km away
  8. 1.65 km ESE of San Ramon, CA · 215 days ago · 5 km deep · 67 km away · felt by 2
  9. 2.74 km ESE of San Ramon, CA · 215 days ago · 8 km deep · 67 km away · felt by 32
  10. 1.615 km E of Seven Trees, CA · 215 days ago · 7 km deep · 31 km away
  11. 3.410 km NW of Pinnacles, CA · 215 days ago · 8 km deep · 89 km away · felt by 28
  12. 2.13 km ESE of Aromas, CA · 215 days ago · 6 km deep · 63 km away
  13. 1.78 km E of Alum Rock, CA · 214 days ago · 8 km deep · 35 km away
  14. 1.716 km SE of Livermore, CA · 214 days ago · 9 km deep · 34 km away · felt by 1
  15. 1.910 km NW of Pinnacles, CA · 213 days ago · 8 km deep · 90 km away
  16. 2.514 km S of Tres Pinos, CA · 211 days ago · 6 km deep · 81 km away
  17. 2.822 km SW of South Dos Palos, CA · 210 days ago · 8 km deep · 81 km away
  18. 1.64 km ESE of San Ramon, CA · 210 days ago · 7 km deep · 67 km away
  19. 2.51 km SW of Aptos Hills-Larkin Valley, CA · 210 days ago · 5 km deep · 66 km away · felt by 122
  20. 1.91 km E of Pinnacles, CA · 210 days ago · 6 km deep · 98 km away
  21. 1.620 km NE of Morgan Hill, CA · 209 days ago · 6 km deep · 21 km away
  22. 2.63 km ESE of San Ramon, CA · 209 days ago · 9 km deep · 68 km away · felt by 30
  23. 1.721 km SW of Gustine, CA · 209 days ago · 11 km deep · 34 km away
  24. 1.521 km SW of Gustine, CA · 209 days ago · 10 km deep · 34 km away
  25. 2.65 km SE of San Ramon, CA · 209 days ago · 8 km deep · 67 km away · felt by 25
  26. 1.74 km ESE of San Ramon, CA · 208 days ago · 5 km deep · 67 km away · felt by 2
  27. 2.519 km SW of Gustine, CA · 208 days ago · 1 km deep · 30 km away
  28. 1.64 km WNW of Pinnacles, CA · 208 days ago · 5 km deep · 95 km away
  29. 1.64 km SE of San Ramon, CA · 208 days ago · 9 km deep · 67 km away
  30. 1.86 km NE of Alamo, CA · 206 days ago · 10 km deep · 80 km away
  31. 2.58 km ENE of Gilroy, CA · 205 days ago · 9 km deep · 42 km away · felt by 9
  32. 2.12 km NE of Millbrae, CA · 204 days ago · 13 km deep · 95 km away · felt by 3
  33. 2.84 km SE of San Ramon, CA · 204 days ago · 9 km deep · 67 km away · felt by 94
  34. 2.45 km WSW of Portola Valley, CA · 204 days ago · 4 km deep · 84 km away · felt by 7
  35. 1.95 km WSW of Portola Valley, CA · 204 days ago · 4 km deep · 84 km away · felt by 2
  36. 1.714 km S of Tres Pinos, CA · 203 days ago · 5 km deep · 81 km away
  37. 1.92 km E of Danville, CA · 203 days ago · 10 km deep · 74 km away
  38. 1.62 km ESE of Pacheco, CA · 203 days ago · 15 km deep · 91 km away
  39. 1.74 km SE of San Ramon, CA · 203 days ago · 8 km deep · 67 km away
  40. 2.55 km WSW of Portola Valley, CA · 203 days ago · 4 km deep · 84 km away · felt by 26
  41. 1.67 km WSW of Gilroy, CA · 202 days ago · 9 km deep · 54 km away
  42. 2.35 km NNW of Pittsburg, CA · 202 days ago · 22 km deep · 90 km away
  43. 1.64 km ESE of San Ramon, CA · 202 days ago · 7 km deep · 68 km away
  44. 2.520 km SW of Gustine, CA · 201 days ago · 12 km deep · 34 km away · felt by 1
  45. 1.620 km SW of Gustine, CA · 201 days ago · 12 km deep · 34 km away
  46. 1.63 km ESE of San Ramon, CA · 201 days ago · 7 km deep · 68 km away
  47. 2.017 km SSW of South Dos Palos, CA · 200 days ago · 0 km deep · 81 km away
  48. 1.64 km SE of San Ramon, CA · 200 days ago · 8 km deep · 67 km away
  49. 3.38 km ENE of Gilroy, CA · 200 days ago · 8 km deep · 42 km away · felt by 61
  50. 2.28 km ENE of Gilroy, CA · 199 days ago · 9 km deep · 42 km away
  51. 1.715 km NNE of Morgan Hill, CA · 199 days ago · 4 km deep · 29 km away
  52. 2.54 km SW of San Juan Bautista, CA · 199 days ago · 8 km deep · 67 km away · felt by 2
  53. 1.612 km NNW of Hollister, CA · 198 days ago · 6 km deep · 50 km away
  54. 1.915 km S of Tres Pinos, CA · 198 days ago · 5 km deep · 83 km away
  55. 1.83 km E of Aromas, CA · 198 days ago · 2 km deep · 61 km away
  56. 2.113 km S of Tres Pinos, CA · 197 days ago · 3 km deep · 80 km away
  57. 1.611 km NW of Pinnacles, CA · 197 days ago · 4 km deep · 89 km away
  58. 1.58 km ENE of Gilroy, CA · 197 days ago · 8 km deep · 41 km away
  59. 1.911 km NW of Pinnacles, CA · 196 days ago · 9 km deep · 88 km away
  60. 2.13 km SE of Pleasant Hill, CA · 195 days ago · 10 km deep · 86 km away · felt by 17

The first 60 of 121.

Before

  1. 2.29 km N of Bay Point, CA · 220 days ago · 24 km deep · 97 km away
  2. 1.82 km NNE of Pinnacles, CA · 220 days ago · 5 km deep · 96 km away
  3. 1.64 km WSW of San Juan Bautista, CA · 220 days ago · 6 km deep · 66 km away
  4. 2.59 km NNE of Milpitas, CA · 221 days ago · 8 km deep · 47 km away · felt by 32
  5. 1.79 km SSE of San Juan Bautista, CA · 221 days ago · 4 km deep · 70 km away
  6. 1.66 km N of San Leandro, CA · 222 days ago · 10 km deep · 84 km away · felt by 2
  7. 2.723 km SW of South Dos Palos, CA · 223 days ago · 7 km deep · 81 km away · felt by 1
  8. 1.82 km E of Hayward, CA · 224 days ago · 3 km deep · 69 km away · felt by 3
  9. 2.29 km E of Alum Rock, CA · 224 days ago · 7 km deep · 35 km away
  10. 1.89 km E of Alum Rock, CA · 224 days ago · 7 km deep · 35 km away
  11. 2.310 km SW of Bonny Doon, CA · 225 days ago · 8 km deep · 91 km away · felt by 1
  12. 2.43 km S of Walnut Creek, CA · 225 days ago · 16 km deep · 84 km away · felt by 3
  13. 1.96 km NW of Pinnacles, CA · 225 days ago · 6 km deep · 92 km away
  14. 1.53 km ESE of Berkeley, CA · 225 days ago · 10 km deep · 95 km away
  15. 1.93 km NNW of Pittsburg, CA · 226 days ago · 20 km deep · 88 km away
  16. 1.99 km E of Alum Rock, CA · 226 days ago · 7 km deep · 35 km away
  17. 1.93 km ESE of San Ramon, CA · 226 days ago · 8 km deep · 68 km away · felt by 6
  18. 1.96 km S of Tres Pinos, CA · 226 days ago · 4 km deep · 73 km away
  19. 2.112 km S of Tres Pinos, CA · 227 days ago · 6 km deep · 79 km away
  20. 2.72 km ESE of San Martin, CA · 228 days ago · 23 km deep · 41 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc75319232. Read Sat, Oct 3, 2026, 12:37 PM UTC.