M1.8 earthquake 20km SSW of Ludlow, California

Magnitude

1.8 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Dec 22, 2001, 4:05 AM PST

UTC

2001-12-22 12:05:59 UTC

Depth

8.3 km (5.2 mi), shallow

Epicenter

34.560° N, 116.263° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.8 km horizontally, 3.4 km in depth

Magnitude uncertainty

±0.21

Depth from

From location

Station coverage gap

44°

Stations used

7

• Joshua Tree, CaliforniaPopulation 7,414. Forecast47 kmN
• Twentynine Palms, CaliforniaPopulation 26,025. Forecast51 kmNNW
• Victorville, CaliforniaPopulation 122,225. Forecast94 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast191 kmENE

After

1. 2.015km SW of Ludlow, CASat, Dec 22, 11:17 AM PST · 9053 days ago · 7 km deep · 7 km away
2. 1.611km NE of Running Springs, CASun, Dec 23, 7:57 AM PST · 9052 days ago · 4 km deep · 77 km away
3. 1.714km NE of Yucaipa, CAMon, Dec 24, 6:33 AM PST · 9051 days ago · 6 km deep · 79 km away
4. 2.017km SW of Ludlow, CAMon, Dec 24, 5:26 PM PST · 9050 days ago · 4 km deep · 6 km away
5. 1.821km SW of Ludlow, CATue, Dec 25, 5:51 AM PST · 9050 days ago · 5 km deep · 3 km away
6. 1.713km WSW of Ludlow, CaliforniaWed, Dec 26, 1:09 AM PST · 9049 days ago · 6 km deep · 15 km away
7. 1.833km N of Yucca Valley, CaliforniaWed, Dec 26, 4:30 AM PST · 9049 days ago · 4 km deep · 26 km away
8. 1.728km SSW of Ludlow, CaliforniaWed, Dec 26, 5:07 AM PST · 9049 days ago · 5 km deep · 11 km away
9. 1.514km E of Big Bear City, CAWed, Dec 26, 8:05 AM PST · 9049 days ago · 3 km deep · 51 km away
10. 2.512km NE of Barstow, CAThu, Dec 27, 5:50 PM PST · 9047 days ago · 3 km deep · 77 km away
11. 2.127km NW of Ludlow, CAFri, Dec 28, 7:42 AM PST · 9047 days ago · 3 km deep · 36 km away
12. 1.65km SE of Big Bear Lake, CAFri, Dec 28, 10:27 PM PST · 9046 days ago · 4 km deep · 67 km away
13. 1.513km ENE of Coachella, CaliforniaSat, Dec 29, 5:16 AM PST · 9046 days ago · 7 km deep · 94 km away
14. 1.714km W of Ludlow, CaliforniaSat, Dec 29, 9:50 AM PST · 9046 days ago · 3 km deep · 16 km away
15. 1.86km N of Yucca Valley, CaliforniaSat, Dec 29, 4:14 PM PST · 9045 days ago · 3 km deep · 46 km away
16. 2.013km WSW of Ludlow, CASat, Dec 29, 11:00 PM PST · 9045 days ago · 2 km deep · 15 km away
17. 1.86km NNW of Yucca Valley, CASun, Dec 30, 4:47 AM PST · 9045 days ago · 2 km deep · 47 km away
18. 1.86km NNW of Yucca Valley, CaliforniaSun, Dec 30, 4:47 AM PST · 9045 days ago · 2 km deep · 47 km away
19. 1.610km NE of Big Bear City, CAMon, Dec 31, 12:32 PM PST · 9043 days ago · 0 km deep · 53 km away
20. 1.616km SSW of Ludlow, CaliforniaTue, Jan 1, 1:05 PM PST · 9042 days ago · 13 km deep · 4 km away
21. 1.530km S of Ludlow, CAWed, Jan 2, 7:35 AM PST · 9042 days ago · 8 km deep · 13 km away
22. 2.25km E of Calimesa, CAWed, Jan 2, 11:55 AM PST · 9041 days ago · 14 km deep · 93 km away
23. 1.58km N of Banning, CAWed, Jan 2, 2:25 PM PST · 9041 days ago · 15 km deep · 84 km away
24. 1.510km N of Cabazon, CAWed, Jan 2, 9:02 PM PST · 9041 days ago · 14 km deep · 79 km away
25. 2.327km SSW of Ludlow, CAThu, Jan 3, 9:54 AM PST · 9041 days ago · 4 km deep · 8 km away
26. 1.627km SSW of Ludlow, CAThu, Jan 3, 11:17 AM PST · 9041 days ago · 5 km deep · 8 km away
27. 1.727km SSW of Ludlow, CaliforniaThu, Jan 3, 11:18 AM PST · 9041 days ago · 6 km deep · 9 km away
28. 1.627km SSW of Ludlow, CAThu, Jan 3, 7:06 PM PST · 9040 days ago · 12 km deep · 8 km away
29. 1.56km ENE of Yucaipa, CaliforniaThu, Jan 3, 11:25 PM PST · 9040 days ago · 13 km deep · 87 km away
30. 1.939km NE of Big Bear City, CAFri, Jan 4, 8:08 PM PST · 9039 days ago · 4 km deep · 24 km away
31. 1.88km N of Barstow, CAFri, Jan 4, 10:08 PM PST · 9039 days ago · 7 km deep · 82 km away
32. 2.711km SSE of Big Bear Lake, CASat, Jan 5, 1:35 AM PST · 9039 days ago · 5 km deep · 70 km away
33. 2.420km SSW of Ludlow, CASat, Jan 5, 11:42 PM PST · 9038 days ago · 5 km deep · 2 km away
34. 1.715km WNW of Morongo Valley, CASun, Jan 6, 3:06 AM PST · 9038 days ago · 7 km deep · 66 km away
35. 1.618km WNW of Ludlow, CaliforniaSun, Jan 6, 4:31 AM PST · 9038 days ago · 0 km deep · 24 km away
36. 2.05km NE of Lake Arrowhead, CASun, Jan 6, 1:21 PM PST · 9037 days ago · 6 km deep · 87 km away
37. 1.540km WSW of Ludlow, CaliforniaSun, Jan 6, 2:12 PM PST · 9037 days ago · 10 km deep · 27 km away
38. 3.139km N of Yucca Valley, CASun, Jan 6, 7:22 PM PST · 9037 days ago · 3 km deep · 23 km away
39. 2.439km N of Yucca Valley, CASun, Jan 6, 9:19 PM PST · 9037 days ago · 4 km deep · 23 km away
40. 1.912km SW of Ludlow, CAMon, Jan 7, 8:31 AM PST · 9037 days ago · 10 km deep · 11 km away
41. 1.613km SW of Ludlow, CaliforniaMon, Jan 7, 12:54 PM PST · 9036 days ago · 8 km deep · 10 km away
42. 1.818km NNW of Joshua Tree, CAMon, Jan 7, 7:47 PM PST · 9036 days ago · 7 km deep · 34 km away
43. 2.013km NW of Ludlow, CATue, Jan 8, 5:32 AM PST · 9036 days ago · 5 km deep · 25 km away
44. 1.818km SW of Ludlow, CATue, Jan 8, 12:47 PM PST · 9035 days ago · 5 km deep · 3 km away
45. 1.75km E of Calimesa, CaliforniaTue, Jan 8, 2:36 PM PST · 9035 days ago · 16 km deep · 92 km away
46. 1.68km SSE of Big Bear City, CaliforniaTue, Jan 8, 5:21 PM PST · 9035 days ago · 3 km deep · 65 km away
47. 1.820km SSW of Ludlow, CaliforniaWed, Jan 9, 7:44 AM PST · 9035 days ago · 5 km deep · 1 km away
48. 1.612km SSW of Big Bear Lake, CAFri, Jan 11, 7:50 AM PST · 9033 days ago · 7 km deep · 79 km away
49. 1.722km SSW of Ludlow, CAFri, Jan 11, 5:32 PM PST · 9032 days ago · 6 km deep · 3 km away
50. 2.212km W of Ludlow, CAFri, Jan 11, 11:43 PM PST · 9032 days ago · 5 km deep · 17 km away
51. 1.710km N of Cabazon, CASat, Jan 12, 4:24 AM PST · 9032 days ago · 18 km deep · 77 km away
52. 1.910km N of Cabazon, CASat, Jan 12, 4:24 AM PST · 9032 days ago · 19 km deep · 77 km away
53. 1.611km NNE of Banning, CaliforniaSat, Jan 12, 9:30 AM PST · 9032 days ago · 15 km deep · 80 km away
54. 1.614km N of Cabazon, CASun, Jan 13, 4:01 AM PST · 9031 days ago · 13 km deep · 74 km away
55. 1.74km NNW of Big Bear City, CASun, Jan 13, 10:36 AM PST · 9031 days ago · 5 km deep · 63 km away
56. 1.56km NNE of Yucca Valley, CaliforniaSun, Jan 13, 10:30 PM PST · 9030 days ago · 11 km deep · 46 km away
57. 1.55km N of Banning, CASun, Jan 13, 11:53 PM PST · 9030 days ago · 19 km deep · 86 km away
58. 2.127km NW of Ludlow, CAMon, Jan 14, 5:53 AM PST · 9030 days ago · 4 km deep · 36 km away
59. 1.75km W of Calimesa, CAMon, Jan 14, 11:14 AM PST · 9030 days ago · 10 km deep · 100 km away
60. 2.827km NW of Ludlow, CAMon, Jan 14, 8:28 PM PST · 9029 days ago · 4 km deep · 36 km away

The first 60 of 163.

Before

1. 1.63km S of Morongo Valley, CaliforniaFri, Dec 21, 1:58 PM PST · 9053 days ago · 11 km deep · 67 km away
2. 1.837km NE of Lucerne Valley, CAFri, Dec 21, 12:44 PM PST · 9053 days ago · 5 km deep · 35 km away
3. 1.913km WSW of Ludlow, CaliforniaThu, Dec 20, 3:06 PM PST · 9054 days ago · 1 km deep · 16 km away
4. 1.512km NW of Ludlow, CAThu, Dec 20, 2:40 PM PST · 9054 days ago · 3 km deep · 26 km away
5. 1.913km W of Ludlow, CaliforniaThu, Dec 20, 12:45 PM PST · 9054 days ago · 1 km deep · 16 km away
6. 1.619km SSW of Ludlow, CaliforniaThu, Dec 20, 5:42 AM PST · 9055 days ago · 2 km deep · 2 km away
7. 1.58km NNE of Banning, CaliforniaThu, Dec 20, 1:08 AM PST · 9055 days ago · 18 km deep · 82 km away
8. 2.327km WNW of Ludlow, CAWed, Dec 19, 3:10 PM PST · 9055 days ago · 6 km deep · 35 km away
9. 1.810km ESE of Big Bear City, CAWed, Dec 19, 12:41 PM PST · 9055 days ago · 8 km deep · 58 km away
10. 1.87km E of Calimesa, CaliforniaWed, Dec 19, 12:10 PM PST · 9055 days ago · 19 km deep · 91 km away
11. 1.89km SSE of Big Bear City, CaliforniaWed, Dec 19, 11:01 AM PST · 9056 days ago · 6 km deep · 66 km away
12. 1.87km NNW of Big Bear Lake, CATue, Dec 18, 5:13 AM PST · 9057 days ago · 5 km deep · 67 km away
13. 1.920km SW of Ludlow, CAMon, Dec 17, 10:42 PM PST · 9057 days ago · 2 km deep · 2 km away
14. 1.619km W of Ludlow, CAMon, Dec 17, 9:51 PM PST · 9057 days ago · 4 km deep · 19 km away
15. 1.917km SW of Ludlow, CAMon, Dec 17, 2:53 PM PST · 9057 days ago · 4 km deep · 6 km away
16. 1.628km N of Yucca Valley, CaliforniaMon, Dec 17, 8:32 AM PST · 9058 days ago · 2 km deep · 29 km away
17. 1.728km SSW of Ludlow, CaliforniaMon, Dec 17, 8:23 AM PST · 9058 days ago · 4 km deep · 8 km away
18. 1.64km ENE of Yucaipa, CaliforniaMon, Dec 17, 5:03 AM PST · 9058 days ago · 17 km deep · 89 km away
19. 1.617km WSW of Ludlow, CAMon, Dec 17, 1:14 AM PST · 9058 days ago · 5 km deep · 14 km away
20. 1.69km ENE of Indio, CASun, Dec 16, 6:17 PM PST · 9058 days ago · 5 km deep · 89 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci9738421. Read Mon, Oct 5, 2026, 6:55 AM UTC.