M2.3 earthquake 3 km NNE of Grayson, California

Magnitude

2.3 (md), micro

Local time

Mon, Dec 30, 1985, 9:21 PM PST

UTC

1985-12-31 05:21:34 UTC

Depth

8.2 km (5.1 mi), shallow

Epicenter

37.596° N, 121.167° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.11

Depth from

From location

Station coverage gap

59°

Stations used

51

• Grayson, CaliforniaPopulation 952. Forecast4 kmNNE
• Patterson, CaliforniaPopulation 21,498. Forecast14 kmNNW
• Modesto, CaliforniaPopulation 211,266. Forecast16 kmWSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast474 kmNNW

After

1. 2.17 km NE of Interlaken, CaliforniaWed, Jan 29, 2:45 AM PST · 14848 days ago · 10 km deep · 80 km away
2. 1.75 km SE of Pleasanton, CaliforniaWed, Jan 29, 8:44 AM PST · 14848 days ago · 5 km deep · 59 km away
3. 1.512 km NNE of Morgan Hill, CaliforniaWed, Jan 29, 12:02 PM PST · 14848 days ago · 6 km deep · 57 km away
4. 2.34 km ENE of Tres Pinos, CaliforniaWed, Jan 29, 1:15 PM PST · 14847 days ago · 9 km deep · 88 km away
5. 1.55 km NE of Tres Pinos, CaliforniaWed, Jan 29, 9:33 PM PST · 14847 days ago · 7 km deep · 86 km away
6. 1.64 km ENE of Tres Pinos, CaliforniaWed, Jan 29, 10:20 PM PST · 14847 days ago · 7 km deep · 88 km away
7. 1.88 km NE of Morgan Hill, CaliforniaThu, Jan 30, 12:05 AM PST · 14847 days ago · 3 km deep · 59 km away
8. 1.95 km NNE of Tres Pinos, CaliforniaThu, Jan 30, 5:35 AM PST · 14847 days ago · 8 km deep · 85 km away
9. 1.73 km NE of Tres Pinos, CaliforniaThu, Jan 30, 5:52 AM PST · 14847 days ago · 8 km deep · 88 km away
10. 1.75 km NNE of Tres Pinos, CaliforniaThu, Jan 30, 6:03 AM PST · 14847 days ago · 8 km deep · 86 km away
11. 1.64 km SE of Pleasanton, CaliforniaThu, Jan 30, 9:14 AM PST · 14847 days ago · 5 km deep · 59 km away
12. 1.74 km SE of Pleasanton, CaliforniaThu, Jan 30, 9:30 AM PST · 14847 days ago · 5 km deep · 59 km away
13. 2.54 km SE of Pleasanton, CaliforniaThu, Jan 30, 9:35 AM PST · 14847 days ago · 4 km deep · 59 km away
14. 3.14 km SE of Pleasanton, CaliforniaThu, Jan 30, 9:47 AM PST · 14847 days ago · 6 km deep · 59 km away
15. 1.64 km SE of Pleasanton, CaliforniaThu, Jan 30, 11:19 AM PST · 14847 days ago · 5 km deep · 59 km away
16. 1.54 km SE of Pleasanton, CaliforniaThu, Jan 30, 11:22 AM PST · 14847 days ago · 5 km deep · 59 km away
17. 1.84 km NE of Tres Pinos, CaliforniaThu, Jan 30, 1:26 PM PST · 14846 days ago · 8 km deep · 87 km away
18. 1.74 km NNE of Tres Pinos, CaliforniaThu, Jan 30, 1:45 PM PST · 14846 days ago · 7 km deep · 86 km away
19. 1.64 km ESE of Pleasanton, CaliforniaThu, Jan 30, 3:08 PM PST · 14846 days ago · 4 km deep · 58 km away
20. 2.94 km SE of Pleasanton, CaliforniaThu, Jan 30, 4:01 PM PST · 14846 days ago · 6 km deep · 59 km away
21. 1.74 km ESE of Pleasanton, CaliforniaThu, Jan 30, 4:22 PM PST · 14846 days ago · 6 km deep · 58 km away
22. 1.54 km ESE of Pleasanton, CaliforniaThu, Jan 30, 4:24 PM PST · 14846 days ago · 5 km deep · 58 km away
23. 1.84 km ESE of Pleasanton, CaliforniaThu, Jan 30, 4:40 PM PST · 14846 days ago · 6 km deep · 58 km away
24. 2.04 km SE of Pleasanton, CaliforniaThu, Jan 30, 5:09 PM PST · 14846 days ago · 5 km deep · 59 km away
25. 2.66 km NE of Ridgemark, CaliforniaThu, Jan 30, 5:41 PM PST · 14846 days ago · 7 km deep · 84 km away
26. 2.14 km SE of Pleasanton, CaliforniaThu, Jan 30, 6:03 PM PST · 14846 days ago · 6 km deep · 59 km away
27. 1.85 km NNE of Tres Pinos, CaliforniaThu, Jan 30, 6:43 PM PST · 14846 days ago · 4 km deep · 85 km away
28. 1.64 km ESE of Pleasanton, CaliforniaThu, Jan 30, 8:43 PM PST · 14846 days ago · 6 km deep · 59 km away
29. 2.04 km ESE of Pleasanton, CaliforniaThu, Jan 30, 9:41 PM PST · 14846 days ago · 7 km deep · 58 km away
30. 2.05 km ENE of Tres Pinos, CaliforniaThu, Jan 30, 10:18 PM PST · 14846 days ago · 8 km deep · 88 km away
31. 1.85 km NNE of Tres Pinos, CaliforniaThu, Jan 30, 11:11 PM PST · 14846 days ago · 7 km deep · 86 km away
32. 1.94 km NE of Tres Pinos, CaliforniaFri, Jan 31, 2:21 AM PST · 14846 days ago · 8 km deep · 87 km away
33. 2.115 km N of Morgan Hill, CaliforniaFri, Jan 31, 3:03 AM PST · 14846 days ago · 2 km deep · 56 km away
34. 1.65 km ENE of Tres Pinos, CaliforniaFri, Jan 31, 3:12 AM PST · 14846 days ago · 4 km deep · 88 km away
35. 3.14 km ESE of Pleasanton, CaliforniaFri, Jan 31, 8:37 AM PST · 14846 days ago · 8 km deep · 59 km away
36. 2.65 km NNE of Tres Pinos, CaliforniaFri, Jan 31, 10:30 AM PST · 14846 days ago · 5 km deep · 86 km away
37. 1.63 km E of Tres Pinos, CaliforniaFri, Jan 31, 1:24 PM PST · 14845 days ago · 9 km deep · 90 km away
38. 2.15 km NNE of Tres Pinos, CaliforniaFri, Jan 31, 7:30 PM PST · 14845 days ago · 7 km deep · 86 km away
39. 1.68 km ESE of East Foothills, CaliforniaFri, Jan 31, 7:36 PM PST · 14845 days ago · 8 km deep · 56 km away
40. 1.722 km SSW of Los Banos, CaliforniaFri, Jan 31, 9:19 PM PST · 14845 days ago · 0 km deep · 81 km away
41. 1.63 km ENE of Tres Pinos, CaliforniaFri, Jan 31, 10:32 PM PST · 14845 days ago · 8 km deep · 88 km away
42. 2.15 km NNE of Tres Pinos, CaliforniaSat, Feb 1, 5:29 AM PST · 14845 days ago · 8 km deep · 85 km away
43. 1.74 km ENE of Tres Pinos, CaliforniaSat, Feb 1, 12:27 PM PST · 14845 days ago · 9 km deep · 89 km away
44. 2.19 km NE of Gilroy, CaliforniaSat, Feb 1, 12:39 PM PST · 14844 days ago · 8 km deep · 67 km away
45. 1.64 km ENE of Tres Pinos, CaliforniaSat, Feb 1, 5:07 PM PST · 14844 days ago · 8 km deep · 89 km away
46. 1.85 km ENE of Tres Pinos, CaliforniaSat, Feb 1, 5:09 PM PST · 14844 days ago · 7 km deep · 89 km away
47. 1.75 km ENE of Tres Pinos, CaliforniaSat, Feb 1, 6:48 PM PST · 14844 days ago · 7 km deep · 89 km away
48. 1.83 km WSW of Tres Pinos, CaliforniaSun, Feb 2, 1:06 PM PST · 14843 days ago · 14 km deep · 92 km away
49. 3.019 km SSW of Volta, CaliforniaSun, Feb 2, 2:07 PM PST · 14843 days ago · 1 km deep · 74 km away
50. 1.63 km E of Tres Pinos, CaliforniaSun, Feb 2, 2:39 PM PST · 14843 days ago · 6 km deep · 90 km away
51. 1.63 km ENE of Tres Pinos, CaliforniaSun, Feb 2, 5:05 PM PST · 14843 days ago · 9 km deep · 88 km away
52. 2.22 km ESE of Tres Pinos, CaliforniaSun, Feb 2, 7:29 PM PST · 14843 days ago · 4 km deep · 91 km away
53. 2.15 km SE of Pleasanton, CaliforniaSun, Feb 2, 9:28 PM PST · 14843 days ago · 6 km deep · 59 km away
54. 1.65 km SE of Pleasanton, CaliforniaSun, Feb 2, 9:47 PM PST · 14843 days ago · 5 km deep · 58 km away
55. 1.94 km SE of Pleasanton, CaliforniaSun, Feb 2, 10:22 PM PST · 14843 days ago · 5 km deep · 59 km away
56. 1.65 km ENE of Tres Pinos, CaliforniaSun, Feb 2, 11:39 PM PST · 14843 days ago · 7 km deep · 88 km away
57. 2.1Central CaliforniaMon, Feb 3, 3:22 AM PST · 14843 days ago · 8 km deep · 86 km away
58. 1.5Central CaliforniaMon, Feb 3, 3:26 AM PST · 14843 days ago · 7 km deep · 86 km away
59. 1.82 km ESE of Tres Pinos, CaliforniaMon, Feb 3, 4:56 AM PST · 14843 days ago · 3 km deep · 91 km away
60. 1.64 km NNE of Tres Pinos, CaliforniaMon, Feb 3, 8:52 AM PST · 14843 days ago · 4 km deep · 86 km away

The first 60 of 186.

From the USGS Earthquake Hazards Program and its partner networks, event nc62489. Read Thu, Sep 24, 2026, 7:58 AM UTC.