California earthquakes

M3.1 earthquake 42km WSW of Encinitas, CA

A magnitude 3.1 earthquake struck 42km WSW of Encinitas, CA on Fri, Dec 18, 1987, 11:20 PM PST (07:20 UTC), 6 km (4 mi) below the surface.

A larger quake followed: M3.9 46km SSW of San Clemente, CA. This one was a foreshock.

Encinitas 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
3.1 (ML, local (Richter)), minor
Magnitude from
Southern California Seismic Network
Local time
UTC
1987-12-19 07:20:59 UTC
Depth
5.7 km (3.6 mi), shallow
Epicenter
32.938° N, 117.731° 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.

Depth from
Operator assigned
Station coverage gap
157°
Stations used
0

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 107 in the 60 days after this one and 34 in the 30 days before it.

After

  1. 3.643km WSW of Encinitas, CA · 14169 days ago · 6 km deep · 1 km away
  2. 2.12km NE of Murrieta, CA · 14168 days ago · 9 km deep · 85 km away
  3. 2.845km WSW of Carlsbad, CA · 14168 days ago · 6 km deep · 11 km away
  4. 1.99km SE of San Pedro, CA · 14168 days ago · 2 km deep · 94 km away
  5. 2.545km WSW of Carlsbad, CA · 14167 days ago · 5 km deep · 4 km away
  6. 2.211km ENE of North Tustin, CA · 14167 days ago · 1 km deep · 98 km away
  7. 2.18km W of Palomar Observatory, CA · 14166 days ago · 19 km deep · 85 km away
  8. 2.849km ENE of San Clemente Is. (SE tip), CA · 14166 days ago · 6 km deep · 15 km away
  9. 2.546km WSW of Carlsbad, CA · 14166 days ago · 5 km deep · 6 km away
  10. 2.948km WSW of Carlsbad, CA · 14165 days ago · 6 km deep · 12 km away
  11. 2.744km WSW of Carlsbad, CA · 14165 days ago · 6 km deep · 4 km away
  12. 2.543km WSW of Carlsbad, CA · 14165 days ago · 6 km deep · 11 km away
  13. 2.727km SW of Carlsbad, CA · 14165 days ago · 6 km deep · 16 km away
  14. 2.645km SSW of San Clemente, CA · 14164 days ago · 6 km deep · 17 km away
  15. 2.912km SSW of San Clemente Is. (SE tip), CA · 14164 days ago · 6 km deep · 65 km away
  16. 3.019km WSW of La Jolla, CA · 14164 days ago · 6 km deep · 32 km away
  17. 2.643km WSW of Carlsbad, CA · 14162 days ago · 5 km deep · 5 km away
  18. 2.814km NNW of San Clemente Is. (NW tip), CA · 14162 days ago · 6 km deep · 91 km away
  19. 2.06km SSE of San Pedro, CA · 14161 days ago · 9 km deep · 97 km away
  20. 2.31km E of Murrieta, CA · 14160 days ago · 5 km deep · 84 km away
  21. 2.22km E of Murrieta, CA · 14160 days ago · 0 km deep · 85 km away
  22. 2.843km WSW of Carlsbad, CA · 14160 days ago · 6 km deep · 4 km away
  23. 2.51km ESE of Murrieta, CA · 14160 days ago · 5 km deep · 84 km away
  24. 2.41km E of Murrieta, CA · 14160 days ago · 5 km deep · 84 km away
  25. 2.645km WSW of Carlsbad, CA · 14160 days ago · 6 km deep · 10 km away
  26. 2.12km NNE of Murrieta, CA · 14159 days ago · 11 km deep · 85 km away
  27. 2.21km ENE of Murrieta, CA · 14159 days ago · 3 km deep · 84 km away
  28. 2.22km ESE of Murrieta, CA · 14159 days ago · 5 km deep · 84 km away
  29. 2.32km SE of Murrieta, CA · 14159 days ago · 5 km deep · 84 km away
  30. 2.23km NE of Murrieta, CA · 14159 days ago · 8 km deep · 86 km away
  31. 2.12km ENE of Murrieta, CA · 14159 days ago · 5 km deep · 85 km away
  32. 2.01km ESE of Murrieta, CA · 14159 days ago · 9 km deep · 84 km away
  33. 1.62km ESE of Murrieta, CA · 14159 days ago · 5 km deep · 85 km away
  34. 2.42km ESE of Murrieta, CA · 14159 days ago · 5 km deep · 84 km away
  35. 1.92km ENE of Murrieta, CA · 14159 days ago · 5 km deep · 85 km away
  36. 3.21km SE of Murrieta, CA · 14159 days ago · 1 km deep · 83 km away
  37. 2.21km ESE of Murrieta, CA · 14159 days ago · 5 km deep · 84 km away
  38. 2.32km ESE of Murrieta, CA · 14159 days ago · 5 km deep · 84 km away
  39. 3.02km SE of Murrieta, CA · 14159 days ago · 1 km deep · 83 km away
  40. 2.02km SE of Murrieta, CA · 14158 days ago · 5 km deep · 83 km away
  41. 2.41km E of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  42. 1.91km NE of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  43. 2.21km E of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  44. 2.02km E of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  45. 2.61km NE of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  46. 2.42km ENE of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  47. 2.42km ENE of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  48. 2.01km NNE of Murrieta, CA · 14158 days ago · 5 km deep · 85 km away
  49. 2.52km ESE of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  50. 2.41km ESE of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  51. 2.32km SE of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  52. 2.42km ESE of Murrieta, CA · 14158 days ago · 5 km deep · 84 km away
  53. 2.22km ENE of Murrieta, CA · 14157 days ago · 5 km deep · 86 km away
  54. 2.42km E of Murrieta, CA · 14157 days ago · 0 km deep · 85 km away
  55. 2.32km ESE of Murrieta, CA · 14157 days ago · 5 km deep · 84 km away
  56. 2.740km WSW of Encinitas, CA · 14157 days ago · 6 km deep · 3 km away
  57. 2.21km NNE of Murrieta, CA · 14157 days ago · 5 km deep · 85 km away
  58. 2.22km NNE of Murrieta, CA · 14157 days ago · 5 km deep · 86 km away
  59. 2.12km E of Murrieta, CA · 14157 days ago · 5 km deep · 85 km away
  60. 2.57km SSE of San Pedro, CA · 14157 days ago · 5 km deep · 96 km away

The first 60 of 107.

Before

  1. 2.31km ESE of Murrieta, CA · 14170 days ago · 5 km deep · 84 km away
  2. 2.31km ESE of Murrieta, CA · 14170 days ago · 5 km deep · 84 km away
  3. 2.848km WSW of Carlsbad, CA · 14171 days ago · 5 km deep · 7 km away
  4. 2.847km WSW of Carlsbad, CA · 14171 days ago · 6 km deep · 14 km away
  5. 3.741km WSW of Carlsbad, CA · 14171 days ago · 6 km deep · 11 km away
  6. 3.039km WSW of Carlsbad, CA · 14171 days ago · 5 km deep · 8 km away
  7. 2.17km NW of Aguanga, CA · 14174 days ago · 5 km deep · 96 km away
  8. 2.849km WSW of Carlsbad, CA · 14175 days ago · 6 km deep · 16 km away
  9. 2.745km WSW of Carlsbad, CA · 14175 days ago · 6 km deep · 6 km away
  10. 2.212km N of Trabuco Canyon, CA · 14175 days ago · 2 km deep · 93 km away
  11. 2.644km WSW of Carlsbad, CA · 14175 days ago · 6 km deep · 6 km away
  12. 2.57km W of Palomar Observatory, CA · 14176 days ago · 5 km deep · 87 km away
  13. 2.57km SSE of Palomar Observatory, CA · 14180 days ago · 15 km deep · 93 km away
  14. 2.42km WNW of Laguna Niguel, CA · 14181 days ago · 5 km deep · 66 km away
  15. 2.854km WSW of Rosarito, B.C., MX · 14182 days ago · 6 km deep · 83 km away
  16. 2.640km WSW of Encinitas, CA · 14182 days ago · 5 km deep · 3 km away
  17. 2.741km W of La Jolla, CA · 14183 days ago · 5 km deep · 4 km away
  18. 2.844km WSW of Carlsbad, CA · 14184 days ago · 6 km deep · 9 km away
  19. 2.641km WSW of Carlsbad, CA · 14184 days ago · 5 km deep · 10 km away
  20. 2.738km WSW of Carlsbad, CA · 14185 days ago · 6 km deep · 8 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci630929. Read Sat, Oct 3, 2026, 10:44 PM UTC.