M1.9 earthquake 7 km NNE of Milpitas, California

Magnitude

1.9 (md), micro

Local time

Wed, Dec 4, 1985, 6:34 AM PST

UTC

1985-12-04 14:34:17 UTC

Depth

6.2 km (3.9 mi), shallow

Epicenter

37.489° N, 121.873° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.1 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

54°

Stations used

48

• Milpitas, CaliforniaPopulation 77,604. Forecast7 kmNNE
• Fremont, CaliforniaPopulation 232,206. Forecast12 kmESE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast503 kmNW

After

1. 2.19 km SE of Livermore, CaliforniaWed, Dec 4, 6:48 AM PST · 14909 days ago · 8 km deep · 23 km away
2. 1.69 km SE of Livermore, CaliforniaWed, Dec 4, 9:40 AM PST · 14909 days ago · 8 km deep · 22 km away
3. 3.314 km N of Morgan Hill, CaliforniaWed, Dec 4, 10:55 AM PST · 14909 days ago · 6 km deep · 32 km away
4. 2.04 km SSE of San Juan Bautista, CaliforniaThu, Dec 5, 5:10 AM PST · 14908 days ago · 4 km deep · 82 km away
5. 1.91 km NNE of Tres Pinos, CaliforniaFri, Dec 6, 11:54 AM PST · 14907 days ago · 8 km deep · 91 km away
6. 2.317 km ENE of East Foothills, CaliforniaSat, Dec 7, 1:09 AM PST · 14907 days ago · 5 km deep · 23 km away
7. 1.5Central CaliforniaSat, Dec 7, 8:08 PM PST · 14906 days ago · 5 km deep · 62 km away
8. 2.04 km SSE of Seven Trees, CaliforniaSun, Dec 8, 11:43 AM PST · 14905 days ago · 6 km deep · 28 km away
9. 1.512 km N of Morgan Hill, CaliforniaMon, Dec 9, 2:47 AM PST · 14905 days ago · 6 km deep · 34 km away
10. 1.93 km N of Aromas, CaliforniaMon, Dec 9, 12:24 PM PST · 14904 days ago · 5 km deep · 66 km away
11. 1.816 km E of Seven Trees, CaliforniaTue, Dec 10, 12:17 AM PST · 14904 days ago · 8 km deep · 30 km away
12. 2.73 km N of East Foothills, CaliforniaTue, Dec 10, 3:25 PM PST · 14903 days ago · 1 km deep · 9 km away
13. 2.13 km N of East Foothills, CaliforniaWed, Dec 11, 4:56 AM PST · 14903 days ago · 0 km deep · 10 km away
14. 1.926 km W of Volta, CaliforniaWed, Dec 11, 7:29 PM PST · 14902 days ago · 4 km deep · 73 km away
15. 2.05 km NW of Broadmoor, CaliforniaThu, Dec 12, 11:20 PM PST · 14901 days ago · 6 km deep · 64 km away
16. 3.06 km NNE of Interlaken, CaliforniaFri, Dec 13, 10:37 AM PST · 14900 days ago · 11 km deep · 55 km away
17. 3.46 km NNE of Interlaken, CaliforniaFri, Dec 13, 10:39 AM PST · 14900 days ago · 12 km deep · 55 km away
18. 2.17 km NNE of Interlaken, CaliforniaFri, Dec 13, 10:40 AM PST · 14900 days ago · 10 km deep · 55 km away
19. 1.96 km NNE of Interlaken, CaliforniaFri, Dec 13, 11:03 AM PST · 14900 days ago · 11 km deep · 55 km away
20. 1.96 km NE of East Foothills, CaliforniaFri, Dec 13, 4:39 PM PST · 14900 days ago · 4 km deep · 12 km away
21. 1.78 km ENE of Morgan Hill, CaliforniaFri, Dec 13, 11:24 PM PST · 14900 days ago · 3 km deep · 44 km away
22. 1.616 km E of Seven Trees, CaliforniaSat, Dec 14, 2:36 AM PST · 14900 days ago · 6 km deep · 30 km away
23. 1.63 km N of East Foothills, CaliforniaSat, Dec 14, 3:48 AM PST · 14900 days ago · 0 km deep · 9 km away
24. 1.77 km W of Gilroy, CaliforniaSat, Dec 14, 7:31 PM PST · 14899 days ago · 9 km deep · 58 km away
25. 2.59 km NE of San Martin, CaliforniaSun, Dec 15, 3:30 AM PST · 14899 days ago · 8 km deep · 47 km away
26. 2.86 km NE of East Foothills, CaliforniaSun, Dec 15, 10:39 PM PST · 14898 days ago · 4 km deep · 12 km away
27. 2.17 km NE of Interlaken, CaliforniaMon, Dec 16, 4:46 AM PST · 14898 days ago · 10 km deep · 58 km away
28. 1.90 km NNW of Concord, CaliforniaMon, Dec 16, 8:40 PM PST · 14897 days ago · 16 km deep · 56 km away
29. 2.50 km W of Pleasant Hill, CaliforniaTue, Dec 17, 4:47 AM PST · 14897 days ago · 9 km deep · 54 km away
30. 1.88 km SE of San Juan Bautista, CaliforniaTue, Dec 17, 6:23 AM PST · 14896 days ago · 4 km deep · 86 km away
31. 1.88 km SE of San Juan Bautista, CaliforniaTue, Dec 17, 6:31 AM PST · 14896 days ago · 4 km deep · 86 km away
32. 1.97 km NE of Interlaken, CaliforniaWed, Dec 18, 10:31 PM PST · 14895 days ago · 10 km deep · 58 km away
33. 2.38 km WSW of Pescadero, CaliforniaThu, Dec 19, 6:52 AM PST · 14894 days ago · 9 km deep · 60 km away
34. 2.49 km SSW of Ridgemark, CaliforniaThu, Dec 19, 11:58 AM PST · 14894 days ago · 6 km deep · 94 km away
35. 1.613 km N of Morgan Hill, CaliforniaThu, Dec 19, 5:07 PM PST · 14894 days ago · 2 km deep · 34 km away
36. 2.13 km SSE of Sunol, CaliforniaFri, Dec 20, 5:39 AM PST · 14893 days ago · 8 km deep · 9 km away
37. 2.03 km N of Pittsburg, CaliforniaFri, Dec 20, 1:30 PM PST · 14893 days ago · 18 km deep · 63 km away
38. 1.73 km S of San Juan Bautista, CaliforniaFri, Dec 20, 2:53 PM PST · 14893 days ago · 4 km deep · 80 km away
39. 2.011 km E of Blackhawk, CaliforniaFri, Dec 20, 4:40 PM PST · 14893 days ago · 21 km deep · 40 km away
40. 1.66 km NNE of Ridgemark, CaliforniaSat, Dec 21, 1:49 AM PST · 14893 days ago · 6 km deep · 85 km away
41. 2.74 km NNE of Ripon, CaliforniaSun, Dec 22, 6:11 PM PST · 14891 days ago · 2 km deep · 76 km away
42. 2.613 km N of Hollister, CaliforniaTue, Dec 24, 11:52 PM PST · 14889 days ago · 6 km deep · 73 km away
43. 1.93 km SW of San Bruno, CaliforniaThu, Dec 26, 4:30 AM PST · 14888 days ago · 11 km deep · 52 km away
44. 3.018 km WSW of Volta, CaliforniaThu, Dec 26, 3:19 PM PST · 14887 days ago · 3 km deep · 81 km away
45. 1.57 km NE of Interlaken, CaliforniaThu, Dec 26, 7:38 PM PST · 14887 days ago · 10 km deep · 58 km away
46. 2.13 km W of San Juan Bautista, CaliforniaFri, Dec 27, 10:05 AM PST · 14886 days ago · 6 km deep · 76 km away
47. 1.512 km N of Morgan Hill, CaliforniaSat, Dec 28, 1:27 AM PST · 14886 days ago · 6 km deep · 35 km away
48. 3.00 km S of Concord, CaliforniaSat, Dec 28, 2:51 AM PST · 14886 days ago · 16 km deep · 56 km away
49. 1.918 km WSW of Volta, CaliforniaSat, Dec 28, 5:53 AM PST · 14885 days ago · 2 km deep · 81 km away
50. 2.30 km SE of Concord, CaliforniaSat, Dec 28, 8:48 AM PST · 14885 days ago · 14 km deep · 55 km away
51. 1.54 km SSE of San Juan Bautista, CaliforniaMon, Dec 30, 3:04 AM PST · 14884 days ago · 3 km deep · 82 km away
52. 2.33 km NNE of Grayson, CaliforniaMon, Dec 30, 9:21 PM PST · 14883 days ago · 8 km deep · 63 km away
53. 1.814 km E of Seven Trees, CaliforniaTue, Dec 31, 7:50 AM PST · 14882 days ago · 3 km deep · 29 km away
54. 1.714 km E of Seven Trees, CaliforniaTue, Dec 31, 10:03 AM PST · 14882 days ago · 3 km deep · 28 km away
55. 1.67 km NE of Interlaken, CaliforniaTue, Dec 31, 10:56 AM PST · 14882 days ago · 11 km deep · 58 km away
56. 2.57 km E of East Foothills, CaliforniaTue, Dec 31, 1:09 PM PST · 14882 days ago · 3 km deep · 18 km away
57. 1.516 km E of Seven Trees, CaliforniaWed, Jan 1, 10:09 AM PST · 14881 days ago · 6 km deep · 30 km away
58. 1.97 km WSW of Gilroy, CaliforniaWed, Jan 1, 9:10 PM PST · 14881 days ago · 6 km deep · 59 km away
59. 2.06 km E of East Foothills, CaliforniaWed, Jan 1, 10:54 PM PST · 14881 days ago · 9 km deep · 16 km away
60. 1.513 km ESE of Alum Rock, CaliforniaWed, Jan 1, 11:21 PM PST · 14881 days ago · 2 km deep · 25 km away

The first 60 of 168.

Before

1. 2.09 km SE of Livermore, CaliforniaWed, Dec 4, 12:01 AM PST · 14910 days ago · 9 km deep · 23 km away
2. 2.09 km SE of Livermore, CaliforniaWed, Dec 4, 12:00 AM PST · 14910 days ago · 9 km deep · 23 km away
3. 2.610 km SE of Livermore, CaliforniaTue, Dec 3, 2:04 PM PST · 14910 days ago · 9 km deep · 23 km away
4. 2.110 km SE of Livermore, CaliforniaTue, Dec 3, 1:52 PM PST · 14910 days ago · 8 km deep · 23 km away
5. 1.53 km N of East Foothills, CaliforniaTue, Dec 3, 4:21 AM PST · 14911 days ago · 0 km deep · 10 km away
6. 2.19 km ESE of East Foothills, CaliforniaMon, Dec 2, 9:49 PM PST · 14911 days ago · 5 km deep · 20 km away
7. 1.66 km SW of Mountain House, CaliforniaMon, Dec 2, 8:29 PM PST · 14911 days ago · 14 km deep · 37 km away
8. 1.65 km NE of Ridgemark, CaliforniaMon, Dec 2, 12:23 AM PST · 14912 days ago · 5 km deep · 87 km away
9. 2.15 km SE of Tres Pinos, CaliforniaSat, Nov 30, 9:57 AM PST · 14913 days ago · 7 km deep · 97 km away
10. 1.78 km SE of Sunol, CaliforniaSat, Nov 30, 1:42 AM PST · 14914 days ago · 3 km deep · 7 km away
11. 2.83 km ESE of Rodeo, CaliforniaThu, Nov 28, 6:03 PM PST · 14915 days ago · 7 km deep · 67 km away
12. 2.111 km SSE of Elmira, CaliforniaThu, Nov 28, 5:32 PM PST · 14915 days ago · 13 km deep · 85 km away
13. 2.35 km SW of Sunol, CaliforniaWed, Nov 27, 5:17 PM PST · 14916 days ago · 11 km deep · 9 km away
14. 1.711 km ESE of Gilroy, CaliforniaWed, Nov 27, 2:54 PM PST · 14916 days ago · 4 km deep · 70 km away
15. 1.55 km ENE of Fremont, CaliforniaWed, Nov 27, 2:41 PM PST · 14916 days ago · 11 km deep · 9 km away
16. 2.211 km ESE of East Foothills, CaliforniaSun, Nov 24, 11:50 PM PST · 14919 days ago · 7 km deep · 23 km away
17. 2.711 km ESE of East Foothills, CaliforniaSun, Nov 24, 11:46 PM PST · 14919 days ago · 7 km deep · 23 km away
18. 1.98 km SW of Tres Pinos, CaliforniaSun, Nov 24, 2:02 AM PST · 14920 days ago · 3 km deep · 95 km away
19. 1.66 km SW of Ridgemark, CaliforniaSat, Nov 23, 3:53 PM PST · 14920 days ago · 11 km deep · 89 km away
20. 1.515 km NE of East Foothills, CaliforniaSat, Nov 23, 9:25 AM PST · 14920 days ago · 8 km deep · 17 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc60561. Read Wed, Sep 30, 2026, 12:39 AM UTC.