California earthquakes

M1.7 earthquake 7km S of Idyllwild, CA

A magnitude 1.7 earthquake struck 7km S of Idyllwild, CA on Wed, Jul 31, 2002, 4:29 AM PDT (11:29 UTC), 16 km (10 mi) below the surface.

A larger quake followed: M4.3 9km N of Ocotillo Wells, CA. This one was a foreshock.

Idyllwild 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
1.7 (Mh), micro
Magnitude from
Southern California Seismic Network
Local time
UTC
2002-07-31 11:29:31 UTC
Depth
16.1 km (10.0 mi), shallow
Epicenter
33.678° N, 116.728° 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, 0.5 km in depth
Depth from
From location
Station coverage gap
39°
Stations used
33

Nearest places

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

Nearby

Within 100 km, magnitude 1.5 and up: 173 in the 60 days after this one and 99 in the 30 days before it.

After

  1. 1.57km NNW of Borrego Springs, CA · 8831 days ago · 4 km deep · 51 km away
  2. 1.53km ESE of Fontana, CA · 8830 days ago · 3 km deep · 79 km away
  3. 1.66km N of Fontana, California · 8830 days ago · 9 km deep · 84 km away
  4. 2.51km WSW of Aguanga, CA · 8830 days ago · 13 km deep · 30 km away
  5. 1.527km SSW of Ocotillo Wells, CA · 8830 days ago · 8 km deep · 96 km away
  6. 1.68km E of Big Bear City, CA · 8830 days ago · 2 km deep · 65 km away
  7. 1.68km E of Big Bear City, CA · 8830 days ago · 2 km deep · 64 km away
  8. 1.86km ESE of Ontario, CA · 8830 days ago · 15 km deep · 87 km away
  9. 1.913km NNE of Borrego Springs, CA · 8829 days ago · 12 km deep · 53 km away
  10. 1.714km SSE of Valle Vista, California · 8829 days ago · 14 km deep · 13 km away
  11. 2.14km NNW of Murrieta, CA · 8829 days ago · 14 km deep · 48 km away
  12. 2.130km SSW of Ludlow, CA · 8828 days ago · 3 km deep · 98 km away
  13. 1.518km ENE of Borrego Springs, CA · 8828 days ago · 10 km deep · 64 km away
  14. 2.113km SW of Borrego Springs, CA · 8827 days ago · 14 km deep · 63 km away
  15. 2.64km NW of Big Bear City, CA · 8827 days ago · 6 km deep · 69 km away
  16. 2.54km NW of Big Bear City, CA · 8827 days ago · 6 km deep · 69 km away
  17. 1.74km NW of Big Bear City, CA · 8827 days ago · 6 km deep · 69 km away
  18. 1.69km NNW of Borrego Springs, CA · 8826 days ago · 6 km deep · 49 km away
  19. 1.52km SSE of Loma Linda, CA · 8826 days ago · 17 km deep · 62 km away
  20. 1.621km ESE of Anza, CA · 8826 days ago · 6 km deep · 32 km away
  21. 1.54km SSW of Idyllwild, CA · 8826 days ago · 18 km deep · 3 km away
  22. 1.610km SW of Salton City, CA · 8826 days ago · 0 km deep · 80 km away
  23. 1.526km N of Yucca Valley, California · 8826 days ago · 6 km deep · 78 km away
  24. 1.713km N of Borrego Springs, CA · 8825 days ago · 3 km deep · 47 km away
  25. 1.610km E of Borrego Springs, CA · 8825 days ago · 7 km deep · 64 km away
  26. 1.733km SSW of Ludlow, CA · 8825 days ago · 5 km deep · 95 km away
  27. 1.618km SE of Anza, CA · 8824 days ago · 12 km deep · 32 km away
  28. 2.03km E of Home Gardens, CA · 8824 days ago · 13 km deep · 74 km away
  29. 1.66km NE of Moreno Valley, CA · 8824 days ago · 18 km deep · 52 km away
  30. 1.66km SW of Calimesa, CA · 8824 days ago · 14 km deep · 46 km away
  31. 2.16km W of Mira Loma, CA · 8824 days ago · 3 km deep · 87 km away
  32. 1.87km NNE of Fontana, CA · 8824 days ago · 9 km deep · 85 km away
  33. 1.611km ENE of Ocotillo Wells, CA · 8824 days ago · 10 km deep · 85 km away
  34. 1.710km SE of Lucerne Valley, CA · 8823 days ago · 1 km deep · 79 km away
  35. 2.77km NW of Rancho Cucamonga, CA · 8823 days ago · 13 km deep · 100 km away
  36. 2.36km W of Mira Loma, CA · 8823 days ago · 3 km deep · 87 km away
  37. 1.58km ESE of Valle Vista, CA · 8823 days ago · 16 km deep · 9 km away
  38. 1.932km NNW of Twentynine Palms, CA · 8823 days ago · 6 km deep · 96 km away
  39. 1.712km SSE of Anza, CA · 8822 days ago · 9 km deep · 26 km away
  40. 2.15km SSW of Idyllwild, CA · 8821 days ago · 16 km deep · 3 km away
  41. 1.627km N of Yucca Valley, CA · 8821 days ago · 8 km deep · 79 km away
  42. 2.11km WSW of Devore, CA · 8821 days ago · 14 km deep · 87 km away
  43. 1.712km ENE of Big Bear City, CA · 8821 days ago · 11 km deep · 68 km away
  44. 1.56km SSE of Lytle Creek, CA · 8820 days ago · 11 km deep · 91 km away
  45. 1.96km WNW of Mira Loma, CA · 8820 days ago · 2 km deep · 87 km away
  46. 1.66km W of Mira Loma, CA · 8820 days ago · 3 km deep · 87 km away
  47. 1.728km N of Yucca Valley, CA · 8819 days ago · 7 km deep · 80 km away
  48. 1.55km SSW of Idyllwild, CA · 8819 days ago · 18 km deep · 2 km away
  49. 1.89km S of Warner Springs, CA · 8819 days ago · 17 km deep · 53 km away
  50. 1.89km SE of Valle Vista, CA · 8819 days ago · 16 km deep · 9 km away
  51. 3.07km SSW of Devore, CA · 8818 days ago · 6 km deep · 85 km away · felt by 150
  52. 1.96km NNE of Fontana, CA · 8818 days ago · 6 km deep · 85 km away
  53. 2.77km SSW of Devore, CA · 8818 days ago · 2 km deep · 85 km away
  54. 1.79km NW of Borrego Springs, CA · 8818 days ago · 6 km deep · 48 km away
  55. 1.57km NNE of Fontana, CA · 8818 days ago · 5 km deep · 84 km away
  56. 1.79km NE of Julian, CA · 8817 days ago · 14 km deep · 62 km away
  57. 1.64km ENE of Beaumont, CA · 8817 days ago · 17 km deep · 36 km away
  58. 2.57km N of Fontana, CA · 8817 days ago · 9 km deep · 85 km away
  59. 1.714km NW of Aguanga, CA · 8817 days ago · 10 km deep · 30 km away
  60. 2.82km NNW of Colton, CA · 8816 days ago · 17 km deep · 71 km away

The first 60 of 173.

Before

  1. 2.15km S of Banning, CA · 8832 days ago · 15 km deep · 26 km away
  2. 1.633km N of Joshua Tree, California · 8832 days ago · 4 km deep · 91 km away
  3. 1.628km SSW of Ocotillo Wells, CA · 8832 days ago · 8 km deep · 97 km away
  4. 2.928km SSW of Ocotillo Wells, CA · 8833 days ago · 8 km deep · 96 km away
  5. 1.89km NNW of Big Bear City, CA · 8833 days ago · -1 km deep · 75 km away
  6. 1.83km NE of Ocotillo Wells, CA · 8834 days ago · 10 km deep · 82 km away
  7. 1.66km NNE of Fontana, CA · 8834 days ago · 9 km deep · 85 km away
  8. 1.52km SW of Loma Linda, California · 8834 days ago · 5 km deep · 64 km away
  9. 1.611km NE of Trabuco Canyon, CA · 8834 days ago · 5 km deep · 72 km away
  10. 1.66km SW of Salton City, CA · 8835 days ago · 3 km deep · 81 km away
  11. 2.57km SSW of Devore, CA · 8835 days ago · 7 km deep · 85 km away
  12. 1.56km E of Anza, CA · 8835 days ago · 17 km deep · 17 km away
  13. 1.518km SSE of Joshua Tree, CA · 8835 days ago · 6 km deep · 55 km away
  14. 1.78km ENE of Ocotillo Wells, CA · 8837 days ago · 4 km deep · 84 km away
  15. 2.49km ENE of Ocotillo Wells, CA · 8837 days ago · 5 km deep · 84 km away
  16. 1.711km NW of Big Bear Lake, CA · 8837 days ago · 4 km deep · 74 km away
  17. 1.96km NNE of Fontana, California · 8837 days ago · 9 km deep · 85 km away
  18. 1.57km NNE of Fontana, CA · 8837 days ago · 8 km deep · 85 km away
  19. 1.67km N of Fontana, California · 8837 days ago · 8 km deep · 85 km away
  20. 1.66km SSW of Devore, California · 8837 days ago · 5 km deep · 84 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ci9805049. Read Sun, Oct 4, 2026, 8:40 PM UTC.