California earthquakes

M1.8 earthquake 8 km E of Gilroy, California

A magnitude 1.8 earthquake struck 8 km E of Gilroy, California on Sat, Aug 18, 1979, 9:42 PM PDT (04:42 UTC), 2 km (1 mi) below the surface.

A larger quake followed: M3.4 3 km S of San Juan Bautista, California. This one was a foreshock.

Gilroy 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
1.8 (Md, duration), micro
Magnitude from
Northern California Seismic System
Local time
UTC
1979-08-19 04:42:03 UTC
Depth
1.8 km (1.1 mi), shallow
Epicenter
36.990° N, 121.470° 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 1.9 km horizontally, 3.7 km in depth
Magnitude uncertainty
±0.09
Depth from
From location
Station coverage gap
158°
Stations used
4

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 179 in the 60 days after this one and 191 in the 30 days before it.

After

  1. 2.51 km SSE of Gilroy, California · 17212 days ago · 5 km deep · 8 km away
  2. 2.021 km NE of Soledad, California · 17211 days ago · 6 km deep · 51 km away
  3. 2.19 km ENE of Gilroy, California · 17211 days ago · 8 km deep · 4 km away
  4. 1.75 km SW of Gilroy, California · 17210 days ago · 5 km deep · 12 km away
  5. 1.611 km E of Gilroy, California · 17210 days ago · 8 km deep · 2 km away
  6. 1.78 km ENE of Gilroy, California · 17209 days ago · 4 km deep · 4 km away
  7. 1.86 km SSE of San Juan Bautista, California · 17209 days ago · 6 km deep · 22 km away
  8. 3.117 km SSE of Tres Pinos, California · 17209 days ago · 10 km deep · 43 km away
  9. 1.615 km W of Westley, California · 17209 days ago · 3 km deep · 63 km away
  10. 1.91 km NE of Gonzales, California · 17209 days ago · 21 km deep · 53 km away
  11. 1.63 km S of San Juan Bautista, California · 17208 days ago · 6 km deep · 21 km away
  12. 1.76 km WSW of Gilroy, California · 17208 days ago · 5 km deep · 15 km away
  13. 1.66 km WSW of Gilroy, California · 17208 days ago · 4 km deep · 15 km away
  14. 1.68 km ENE of Gilroy, California · 17208 days ago · 6 km deep · 7 km away
  15. 2.37 km E of Gilroy, California · 17208 days ago · 2 km deep · 2 km away
  16. 1.98 km E of Gilroy, California · 17208 days ago · 5 km deep · 1 km away
  17. 2.117 km SSE of Tres Pinos, California · 17208 days ago · 5 km deep · 43 km away
  18. 1.810 km NNE of Big Sur, California · 17207 days ago · 5 km deep · 75 km away
  19. 1.96 km WSW of Gilroy, California · 17207 days ago · 4 km deep · 15 km away
  20. 2.214 km E of Seven Trees, California · 17207 days ago · 6 km deep · 39 km away
  21. 2.08 km ENE of Morgan Hill, California · 17207 days ago · 3 km deep · 21 km away
  22. 1.67 km NE of Gilroy, California · 17206 days ago · 4 km deep · 7 km away
  23. 2.224 km NE of Greenfield, California · 17205 days ago · 6 km deep · 70 km away
  24. 1.722 km ENE of Soledad, California · 17205 days ago · 4 km deep · 63 km away
  25. 1.821 km NE of Soledad, California · 17204 days ago · 3 km deep · 58 km away
  26. 2.04 km SSW of Gilroy, California · 17204 days ago · 5 km deep · 11 km away
  27. 2.05 km WSW of Gilroy, California · 17204 days ago · 5 km deep · 14 km away
  28. 1.68 km ENE of Gilroy, California · 17204 days ago · 5 km deep · 7 km away
  29. 1.88 km ENE of Gilroy, California · 17204 days ago · 6 km deep · 6 km away
  30. 1.89 km ESE of Gilroy, California · 17203 days ago · 4 km deep · 2 km away
  31. 2.421 km NE of Soledad, California · 17203 days ago · 5 km deep · 58 km away
  32. 2.321 km NE of Soledad, California · 17203 days ago · 4 km deep · 58 km away
  33. 2.38 km E of San Martin, California · 17203 days ago · 7 km deep · 13 km away
  34. 1.68 km ENE of Gilroy, California · 17203 days ago · 6 km deep · 6 km away
  35. 2.55 km WSW of Gilroy, California · 17202 days ago · 5 km deep · 14 km away
  36. 1.96 km WSW of Gilroy, California · 17202 days ago · 5 km deep · 14 km away
  37. 2.65 km WSW of Gilroy, California · 17202 days ago · 5 km deep · 14 km away
  38. 2.48 km ENE of Gilroy, California · 17202 days ago · 8 km deep · 4 km away
  39. 1.821 km NE of Soledad, California · 17202 days ago · 5 km deep · 57 km away
  40. 1.78 km W of Gilroy, California · 17202 days ago · 4 km deep · 17 km away
  41. 2.04 km N of East Foothills, California · 17201 days ago · 1 km deep · 57 km away
  42. 1.721 km NE of Soledad, California · 17201 days ago · 2 km deep · 54 km away
  43. 1.815 km S of Tracy, California · 17201 days ago · 5 km deep · 68 km away
  44. 2.34 km ENE of Livermore, California · 17200 days ago · 5 km deep · 81 km away
  45. 1.96 km SSW of Livermore, California · 17200 days ago · 0 km deep · 77 km away
  46. 2.122 km NE of San Lucas, California · 17200 days ago · 6 km deep · 98 km away
  47. 1.822 km ENE of Soledad, California · 17200 days ago · 5 km deep · 64 km away
  48. 1.911 km E of Gilroy, California · 17199 days ago · 11 km deep · 3 km away
  49. 1.67 km ENE of Gilroy, California · 17198 days ago · 3 km deep · 6 km away
  50. 2.09 km SSW of Ridgemark, California · 17198 days ago · 7 km deep · 29 km away
  51. 1.88 km SE of San Juan Bautista, California · 17198 days ago · 5 km deep · 23 km away
  52. 3.18 km NE of Gilroy, California · 17197 days ago · 5 km deep · 8 km away
  53. 1.617 km W of Three Rocks, California · 17197 days ago · 5 km deep · 96 km away
  54. 1.928 km NE of Soledad, California · 17196 days ago · 11 km deep · 55 km away
  55. 2.59 km ENE of Gilroy, California · 17196 days ago · 9 km deep · 6 km away
  56. 1.810 km E of Gilroy, California · 17195 days ago · 7 km deep · 2 km away
  57. 2.04 km NE of Livermore, California · 17195 days ago · 8 km deep · 83 km away
  58. 2.83 km ENE of Livermore, California · 17195 days ago · 3 km deep · 82 km away
  59. 2.14 km ENE of Livermore, California · 17194 days ago · 5 km deep · 82 km away
  60. 1.68 km ENE of Gilroy, California · 17194 days ago · 7 km deep · 4 km away

The first 60 of 179.

Before

  1. 2.08 km ENE of Gilroy, CA · 17212 days ago · 4 km deep · 4 km away
  2. 2.14 km N of Gilroy, California · 17212 days ago · 4 km deep · 12 km away
  3. 1.58 km NNE of Chualar, California · 17212 days ago · 8 km deep · 38 km away
  4. 2.622 km NNE of Soledad, California · 17213 days ago · 2 km deep · 49 km away
  5. 2.39 km ESE of Gilroy, California · 17213 days ago · 5 km deep · 1 km away
  6. 1.828 km ENE of Soledad, California · 17214 days ago · 9 km deep · 60 km away
  7. 2.41 km ENE of Gilroy, California · 17214 days ago · 4 km deep · 8 km away
  8. 2.29 km ESE of Gilroy, California · 17214 days ago · 5 km deep · 1 km away
  9. 2.48 km E of Gilroy, California · 17214 days ago · 3 km deep · 1 km away
  10. 1.711 km ESE of Gilroy, California · 17214 days ago · 5 km deep · 4 km away
  11. 2.22 km WSW of Ridgemark, California · 17214 days ago · 6 km deep · 22 km away
  12. 1.716 km SSE of Tres Pinos, California · 17215 days ago · 4 km deep · 42 km away
  13. 2.0Central California · 17215 days ago · 6 km deep · 1 km away
  14. 2.59 km ENE of Morgan Hill, California · 17215 days ago · 5 km deep · 21 km away
  15. 1.68 km ESE of Gilroy, California · 17215 days ago · 5 km deep · 0 km away
  16. 1.58 km ESE of Gilroy, California · 17215 days ago · 5 km deep · 0 km away
  17. 1.716 km SSE of Tres Pinos, California · 17215 days ago · 5 km deep · 42 km away
  18. 1.57 km ENE of Gilroy, California · 17215 days ago · 4 km deep · 4 km away
  19. 1.79 km NE of Gilroy, California · 17215 days ago · 4 km deep · 8 km away
  20. 2.45 km SSE of San Juan Bautista, California · 17215 days ago · 7 km deep · 21 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc1047321. Read Sat, Oct 3, 2026, 3:31 AM UTC.