California earthquakes

M2.4 earthquake 3km WNW of Willowbrook, CA

A magnitude 2.4 earthquake struck 3km WNW of Willowbrook, CA on Mon, Apr 22, 1985, 5:44 PM PST (01:44 UTC), 12 km (7 mi) below the surface.

A larger quake followed: M2.5 8km SSW of San Joaquin Hills, 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
2.4 (mc), micro
Local time
UTC
1985-04-23 01:44:58 UTC
Depth
11.8 km (7.3 mi), shallow
Epicenter
33.923° N, 118.287° 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
From location
Station coverage gap
99°
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: 93 in the 60 days after this one and 56 in the 30 days before it.

After

  1. 1.913km WNW of Malibu, CA · 15128 days ago · 10 km deep · 62 km away
  2. 2.58km SSW of San Joaquin Hills, CA · 15127 days ago · 6 km deep · 56 km away
  3. 1.93km NE of Colton, CA · 15126 days ago · 6 km deep · 93 km away
  4. 2.14km ENE of North Tustin, CA · 15126 days ago · 6 km deep · 52 km away
  5. 1.55km NE of Altadena, CA · 15125 days ago · 11 km deep · 38 km away
  6. 1.93km N of Fontana, CA · 15125 days ago · 5 km deep · 79 km away
  7. 2.13km W of Loma Linda, CA · 15124 days ago · 11 km deep · 93 km away
  8. 2.18km WSW of Corona, CA · 15124 days ago · 3 km deep · 60 km away
  9. 2.02km W of Loma Linda, CA · 15123 days ago · 10 km deep · 94 km away
  10. 2.05km ESE of Yorba Linda, CA · 15122 days ago · 5 km deep · 49 km away
  11. 1.714km N of Castaic, CA · 15122 days ago · 9 km deep · 84 km away
  12. 1.919km NNW of Fillmore, CA · 15122 days ago · 14 km deep · 96 km away
  13. 2.020km S of Rancho Palos Verdes, CA · 15121 days ago · 14 km deep · 41 km away
  14. 1.612km S of Agua Dulce, CA · 15121 days ago · 6 km deep · 52 km away
  15. 1.84km NE of Carson, CA · 15118 days ago · 5 km deep · 8 km away
  16. 1.66km NW of Rancho Cucamonga, CA · 15118 days ago · 10 km deep · 67 km away
  17. 1.62km SSE of Colton, CA · 15118 days ago · 16 km deep · 92 km away
  18. 2.213km SW of Marina del Rey, CA · 15117 days ago · 7 km deep · 25 km away
  19. 1.74km SSW of Compton, CA · 15117 days ago · 6 km deep · 8 km away
  20. 2.74km NE of Carson, CA · 15117 days ago · 15 km deep · 8 km away
  21. 1.62km ESE of Loma Linda, CA · 15116 days ago · 15 km deep · 97 km away
  22. 2.02km ESE of Loma Linda, CA · 15115 days ago · 16 km deep · 97 km away
  23. 1.77km SSE of Loma Linda, CA · 15115 days ago · 16 km deep · 98 km away
  24. 1.73km ESE of Colton, CA · 15115 days ago · 14 km deep · 94 km away
  25. 1.85km N of Moreno Valley, CA · 15114 days ago · 12 km deep · 98 km away
  26. 2.02km NNE of Colton, CA · 15114 days ago · 10 km deep · 92 km away
  27. 1.83km NE of Colton, CA · 15114 days ago · 10 km deep · 93 km away
  28. 1.93km NNE of Colton, CA · 15113 days ago · 10 km deep · 93 km away
  29. 1.82km NNE of Colton, CA · 15113 days ago · 10 km deep · 92 km away
  30. 2.03km NE of Colton, CA · 15113 days ago · 13 km deep · 94 km away
  31. 1.92km WNW of Loma Linda, CA · 15113 days ago · 10 km deep · 94 km away
  32. 2.21km ESE of Rossmoor, CA · 15112 days ago · 5 km deep · 25 km away
  33. 2.14km NNE of Fontana, CA · 15111 days ago · 4 km deep · 81 km away
  34. 3.03km SSE of Loma Linda, CA · 15110 days ago · 15 km deep · 97 km away
  35. 1.93km NNE of Colton, CA · 15110 days ago · 10 km deep · 92 km away
  36. 1.63km ESE of Muscoy, CA · 15110 days ago · 5 km deep · 93 km away
  37. 1.71km N of Loma Linda, CA · 15109 days ago · 13 km deep · 96 km away
  38. 2.15km WNW of Lake Elsinore, CA · 15108 days ago · 6 km deep · 88 km away
  39. 2.22km WSW of Granada Hills, CA · 15107 days ago · 4 km deep · 43 km away
  40. 1.612km SW of Port Hueneme, CA · 15105 days ago · 14 km deep · 95 km away
  41. 2.11km WSW of Devore, CA · 15105 days ago · 11 km deep · 87 km away
  42. 2.04km SE of Loma Linda, CA · 15105 days ago · 16 km deep · 98 km away
  43. 1.81km SSE of Loma Linda, CA · 15105 days ago · 18 km deep · 96 km away
  44. 1.91km ESE of La Habra, CA · 15104 days ago · 8 km deep · 33 km away
  45. 1.78km SSW of Malibu Beach, CA · 15104 days ago · 12 km deep · 40 km away
  46. 2.04km ESE of Yorba Linda, CA · 15103 days ago · 5 km deep · 48 km away
  47. 2.02km SW of Loma Linda, CA · 15103 days ago · 9 km deep · 94 km away
  48. 2.02km SSE of Compton, CA · 15102 days ago · 5 km deep · 9 km away
  49. 2.08km WSW of Corona, CA · 15102 days ago · 6 km deep · 60 km away
  50. 1.911km WNW of Lake Elsinore, CA · 15101 days ago · 4 km deep · 82 km away
  51. 2.06km W of Castaic, CA · 15097 days ago · 2 km deep · 73 km away
  52. 2.02km NNE of Colton, CA · 15097 days ago · 13 km deep · 92 km away
  53. 2.03km S of Valencia, CA · 15096 days ago · 8 km deep · 62 km away
  54. 1.83km N of Colton, CA · 15095 days ago · 9 km deep · 92 km away
  55. 1.51km SE of Loma Linda, CA · 15093 days ago · 14 km deep · 96 km away
  56. 1.94km ESE of Seal Beach, CA · 15093 days ago · 5 km deep · 30 km away
  57. 1.88km S of Seal Beach, CA · 15093 days ago · 5 km deep · 33 km away
  58. 2.55km WNW of Huntington Beach, CA · 15093 days ago · 6 km deep · 32 km away
  59. 1.76km WSW of Corona, CA · 15092 days ago · 3 km deep · 61 km away
  60. 2.812km WSW of Lake Hughes, CA · 15089 days ago · 8 km deep · 83 km away

The first 60 of 93.

Before

  1. 2.12km W of Loma Linda, CA · 15129 days ago · 10 km deep · 94 km away
  2. 1.82km N of Loma Linda, CA · 15129 days ago · 13 km deep · 96 km away
  3. 2.51km NNE of Loma Linda, CA · 15129 days ago · 14 km deep · 96 km away
  4. 1.63km NNE of Fontana, CA · 15129 days ago · 4 km deep · 81 km away
  5. 1.62km ESE of Loma Linda, CA · 15130 days ago · 14 km deep · 97 km away
  6. 2.812km WNW of Malibu, CA · 15130 days ago · 12 km deep · 60 km away
  7. 1.65km NNE of Fontana, CA · 15133 days ago · 7 km deep · 82 km away
  8. 2.47km SSW of San Joaquin Hills, CA · 15133 days ago · 6 km deep · 56 km away
  9. 2.520km NNE of Santa Barbara Is., CA · 15133 days ago · 6 km deep · 72 km away
  10. 2.26km N of Moreno Valley, CA · 15134 days ago · 14 km deep · 98 km away
  11. 2.28km WSW of Manhattan Beach, CA · 15134 days ago · 1 km deep · 21 km away
  12. 2.112km WNW of Lakeland Village, CA · 15135 days ago · 4 km deep · 81 km away
  13. 1.64km NNE of Fontana, CA · 15135 days ago · 4 km deep · 81 km away
  14. 1.93km N of Muscoy, CA · 15135 days ago · 8 km deep · 91 km away
  15. 1.93km NE of Moreno Valley, CA · 15135 days ago · 12 km deep · 99 km away
  16. 1.97km SW of Malibu Beach, CA · 15135 days ago · 12 km deep · 42 km away
  17. 1.920km SSW of San Clemente, CA · 15136 days ago · 5 km deep · 91 km away
  18. 1.51km SSW of East Los Angeles, CA · 15136 days ago · 10 km deep · 15 km away
  19. 2.336km SSE of Santa Cruz Is. (E end), CA · 15137 days ago · 6 km deep · 99 km away
  20. 2.04km ESE of Ontario, CA · 15138 days ago · 5 km deep · 66 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci64907. Read Tue, Sep 22, 2026, 11:28 PM UTC.