California earthquakes

M2.4 earthquake 16 km SSE of Livermore, California

A magnitude 2.4 earthquake struck 16 km SSE of Livermore, California on Thu, Oct 8, 1987, 10:17 AM PDT (17:17 UTC), 4 km (2 mi) below the surface.

A larger quake followed: M4.4 12 km N of Livermore, California. This one was a foreshock.

Livermore 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
2.4 (md), micro
Local time
UTC
1987-10-08 17:17:58 UTC
Depth
3.5 km (2.2 mi), shallow
Epicenter
37.552° N, 121.675° 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 0.1 km horizontally, 0.3 km in depth
Magnitude uncertainty
±0.13
Depth from
From location
Station coverage gap
43°
Stations used
48

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 103 in the 60 days after this one and 47 in the 30 days before it.

After

  1. 1.513 km WNW of Diablo Grande, California · 14234 days ago · 6 km deep · 26 km away
  2. 2.713 km ENE of East Foothills, California · 14233 days ago · 5 km deep · 13 km away
  3. 1.75 km NNE of Tres Pinos, California · 14233 days ago · 4 km deep · 87 km away
  4. 1.519 km SSE of Livermore, California · 14232 days ago · 6 km deep · 4 km away
  5. 2.813 km N of Morgan Hill, California · 14230 days ago · 4 km deep · 34 km away
  6. 2.112 km NE of East Foothills, California · 14229 days ago · 7 km deep · 10 km away
  7. 2.04 km SSE of Napa, California · 14229 days ago · 12 km deep · 95 km away
  8. 1.81 km WNW of Bethel Island, California · 14229 days ago · 0 km deep · 53 km away
  9. 2.03 km WSW of San Juan Bautista, California · 14228 days ago · 8 km deep · 80 km away
  10. 1.715 km E of Seven Trees, California · 14226 days ago · 6 km deep · 30 km away
  11. 2.04 km SE of Aromas, California · 14226 days ago · 7 km deep · 77 km away
  12. 1.79 km E of San Martin, California · 14226 days ago · 9 km deep · 53 km away
  13. 2.918 km SSE of Livermore, California · 14225 days ago · 7 km deep · 2 km away
  14. 4.412 km N of Livermore, California · 14221 days ago · 10 km deep · 27 km away
  15. 1.65 km SE of Tres Pinos, California · 14221 days ago · 7 km deep · 95 km away
  16. 1.67 km W of Gilroy, California · 14221 days ago · 6 km deep · 62 km away
  17. 1.614 km E of Seven Trees, California · 14220 days ago · 2 km deep · 29 km away
  18. 2.018 km NE of East Foothills, California · 14220 days ago · 5 km deep · 5 km away
  19. 1.65 km SW of Gilroy, California · 14219 days ago · 4 km deep · 64 km away
  20. 1.80 km E of Ashland, California · 14218 days ago · 4 km deep · 41 km away
  21. 1.68 km SE of Los Banos, California · 14218 days ago · 4 km deep · 100 km away
  22. 1.66 km N of East Foothills, California · 14217 days ago · 1 km deep · 18 km away
  23. 2.215 km N of Morgan Hill, CA · 14216 days ago · 3 km deep · 32 km away
  24. 1.85 km SE of Tres Pinos, California · 14216 days ago · 9 km deep · 95 km away
  25. 1.55 km SW of Gilroy, California · 14215 days ago · 3 km deep · 65 km away
  26. 2.02 km SSE of Alum Rock, California · 14215 days ago · 7 km deep · 26 km away
  27. 1.61 km ESE of Pleasant Hill, California · 14214 days ago · 9 km deep · 55 km away
  28. 3.20 km NNW of Kensington, California · 14213 days ago · 5 km deep · 67 km away
  29. 2.511 km ESE of East Foothills, California · 14212 days ago · 8 km deep · 24 km away
  30. 2.38 km N of East Foothills, California · 14212 days ago · 6 km deep · 16 km away
  31. 1.86 km W of Pleasant Hill, California · 14211 days ago · 14 km deep · 59 km away
  32. 3.215 km E of Seven Trees, California · 14211 days ago · 6 km deep · 29 km away
  33. 1.615 km E of Seven Trees, California · 14211 days ago · 5 km deep · 29 km away
  34. 1.615 km E of Seven Trees, California · 14210 days ago · 5 km deep · 29 km away
  35. 1.61 km NNW of Cambrian Park, California · 14210 days ago · 4 km deep · 39 km away
  36. 1.67 km N of East Foothills, California · 14210 days ago · 8 km deep · 16 km away
  37. 2.06 km ENE of Hollister, California · 14210 days ago · 7 km deep · 80 km away
  38. 3.14 km SW of Tres Pinos, California · 14210 days ago · 7 km deep · 91 km away
  39. 1.62 km NNW of Hollister, California · 14209 days ago · 7 km deep · 79 km away
  40. 2.0Northern California · 14208 days ago · 5 km deep · 53 km away
  41. 1.65 km SSW of Gilroy, California · 14208 days ago · 4 km deep · 66 km away
  42. 2.86 km ENE of Hollister, California · 14208 days ago · 8 km deep · 80 km away
  43. 1.56 km ENE of Hollister, California · 14206 days ago · 7 km deep · 80 km away
  44. 1.510 km ESE of Gilroy, California · 14206 days ago · 4 km deep · 68 km away
  45. 2.713 km ENE of East Foothills, California · 14205 days ago · 4 km deep · 15 km away
  46. 2.112 km NNE of East Foothills, California · 14205 days ago · 7 km deep · 10 km away
  47. 1.63 km ENE of Redwood Shores, California · 14205 days ago · 5 km deep · 47 km away
  48. 1.85 km SE of Tres Pinos, California · 14205 days ago · 7 km deep · 95 km away
  49. 1.85 km NNE of Tres Pinos, California · 14204 days ago · 4 km deep · 86 km away
  50. 2.06 km E of East Foothills, California · 14203 days ago · 6 km deep · 19 km away
  51. 1.67 km NNE of East Foothills, California · 14203 days ago · 7 km deep · 16 km away
  52. 1.73 km SSW of Alameda, California · 14202 days ago · 5 km deep · 56 km away
  53. 2.16 km NE of East Foothills, California · 14202 days ago · 7 km deep · 17 km away
  54. 1.96 km ENE of Hollister, California · 14201 days ago · 5 km deep · 80 km away
  55. 1.68 km WNW of Davenport, California · 14200 days ago · 9 km deep · 76 km away
  56. 1.56 km NE of Ridgemark, California · 14200 days ago · 4 km deep · 84 km away
  57. 1.92 km SW of Mountain View, California · 14200 days ago · 0 km deep · 63 km away
  58. 1.98 km NE of Ridgemark, California · 14199 days ago · 6 km deep · 82 km away
  59. 1.614 km E of Seven Trees, California · 14198 days ago · 2 km deep · 29 km away
  60. 2.410 km SSW of Loyola, California · 14197 days ago · 6 km deep · 52 km away

The first 60 of 103.

Before

  1. 3.03 km ESE of Berkeley, California · 14235 days ago · 7 km deep · 60 km away
  2. 2.217 km NE of East Foothills, California · 14235 days ago · 7 km deep · 5 km away
  3. 1.511 km SSE of Livermore, California · 14235 days ago · 4 km deep · 5 km away
  4. 2.213 km ENE of East Foothills, California · 14236 days ago · 5 km deep · 13 km away
  5. 1.613 km ENE of East Foothills, California · 14236 days ago · 7 km deep · 12 km away
  6. 1.71 km ENE of American Canyon, California · 14237 days ago · 9 km deep · 86 km away
  7. 1.616 km E of Seven Trees, California · 14237 days ago · 6 km deep · 29 km away
  8. 1.812 km ESE of East Foothills, California · 14237 days ago · 8 km deep · 26 km away
  9. 1.78 km W of Brentwood, California · 14238 days ago · 19 km deep · 42 km away
  10. 1.613 km N of Morgan Hill, California · 14239 days ago · 5 km deep · 34 km away
  11. 1.715 km SE of Livermore, California · 14240 days ago · 4 km deep · 2 km away
  12. 2.02 km N of San Leandro, California · 14241 days ago · 5 km deep · 47 km away
  13. 1.8Northern California · 14241 days ago · 12 km deep · 59 km away
  14. 1.66 km SE of Tres Pinos, California · 14241 days ago · 5 km deep · 96 km away
  15. 1.86 km ENE of Hollister, California · 14241 days ago · 6 km deep · 82 km away
  16. 1.712 km NE of East Foothills, California · 14243 days ago · 7 km deep · 10 km away
  17. 2.612 km NE of East Foothills, California · 14243 days ago · 7 km deep · 10 km away
  18. 2.018 km NE of East Foothills, California · 14244 days ago · 6 km deep · 4 km away
  19. 1.510 km ENE of Blackhawk, California · 14244 days ago · 10 km deep · 36 km away
  20. 2.06 km ENE of Hollister, California · 14245 days ago · 7 km deep · 80 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event nc106936. Read Mon, Sep 28, 2026, 1:24 PM UTC.