M1.9 earthquake 8 km SSW of Ridgemark, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Jun 28, 1986, 9:26 PM PDT

UTC

1986-06-29 04:26:38 UTC

Depth

6.5 km (4.0 mi), shallow

Epicenter

36.745° N, 121.409° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.2 km horizontally, 0.3 km in depth

Magnitude uncertainty

±0.17

Depth from

From location

Station coverage gap

56°

Stations used

44

• Ridgemark, CaliforniaPopulation 3,016. Forecast9 kmSSW
• Hollister, CaliforniaPopulation 37,462. Forecast12 kmS
• Salinas, CaliforniaPopulation 157,380. Forecast23 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast415 kmNW

After

1. 1.519 km SSE of Livermore, CaliforniaSun, Jun 29, 2:31 AM PDT · 14704 days ago · 7 km deep · 89 km away
2. 2.524 km NE of Greenfield, CaliforniaSun, Jun 29, 5:08 AM PDT · 14704 days ago · 7 km deep · 43 km away
3. 1.86 km NNE of East Foothills, CaliforniaSun, Jun 29, 1:35 PM PDT · 14704 days ago · 6 km deep · 84 km away
4. 2.313 km N of Morgan Hill, CaliforniaSun, Jun 29, 9:21 PM PDT · 14703 days ago · 5 km deep · 60 km away
5. 2.121 km NE of Soledad, CaliforniaMon, Jun 30, 7:47 AM PDT · 14703 days ago · 2 km deep · 33 km away
6. 1.812 km ESE of East Foothills, CaliforniaMon, Jun 30, 9:18 AM PDT · 14703 days ago · 6 km deep · 70 km away
7. 1.519 km SSE of Livermore, CaliforniaTue, Jul 1, 1:32 AM PDT · 14702 days ago · 7 km deep · 89 km away
8. 2.514 km NE of East Foothills, CaliforniaTue, Jul 1, 1:40 AM PDT · 14702 days ago · 8 km deep · 83 km away
9. 2.118 km SSE of Tres Pinos, CaliforniaTue, Jul 1, 2:20 AM PDT · 14702 days ago · 7 km deep · 19 km away
10. 1.713 km S of Tres Pinos, CaliforniaTue, Jul 1, 5:44 AM PDT · 14702 days ago · 4 km deep · 13 km away
11. 1.819 km SSE of Livermore, CaliforniaTue, Jul 1, 7:25 AM PDT · 14702 days ago · 7 km deep · 89 km away
12. 1.924 km NE of Greenfield, CaliforniaTue, Jul 1, 10:09 AM PDT · 14702 days ago · 5 km deep · 44 km away
13. 2.08 km ENE of Gilroy, CaliforniaTue, Jul 1, 10:45 AM PDT · 14702 days ago · 8 km deep · 32 km away
14. 2.318 km SSE of Livermore, CaliforniaTue, Jul 1, 1:45 PM PDT · 14702 days ago · 7 km deep · 90 km away
15. 3.118 km NE of East Foothills, CaliforniaTue, Jul 1, 2:31 PM PDT · 14702 days ago · 7 km deep · 88 km away
16. 1.714 km NE of East Foothills, CaliforniaTue, Jul 1, 10:59 PM PDT · 14701 days ago · 7 km deep · 82 km away
17. 1.89 km NNE of East Foothills, CaliforniaWed, Jul 2, 2:51 AM PDT · 14701 days ago · 8 km deep · 86 km away
18. 2.014 km NE of East Foothills, CaliforniaWed, Jul 2, 5:08 AM PDT · 14701 days ago · 7 km deep · 82 km away
19. 1.514 km SSE of Tres Pinos, CaliforniaWed, Jul 2, 5:38 AM PDT · 14701 days ago · 7 km deep · 15 km away
20. 1.88 km ENE of San Martin, CaliforniaWed, Jul 2, 5:49 AM PDT · 14701 days ago · 7 km deep · 43 km away
21. 2.218 km SSE of Livermore, CaliforniaWed, Jul 2, 3:29 PM PDT · 14700 days ago · 7 km deep · 90 km away
22. 1.66 km SE of Tres Pinos, CaliforniaThu, Jul 3, 9:43 PM PDT · 14699 days ago · 8 km deep · 13 km away
23. 2.29 km NNE of East Foothills, CaliforniaThu, Jul 3, 11:25 PM PDT · 14699 days ago · 8 km deep · 86 km away
24. 2.019 km SSE of Tres Pinos, CaliforniaFri, Jul 4, 1:47 PM PDT · 14699 days ago · 4 km deep · 21 km away
25. 1.514 km SSE of Tres Pinos, CaliforniaFri, Jul 4, 5:34 PM PDT · 14698 days ago · 4 km deep · 15 km away
26. 1.97 km E of East Foothills, CaliforniaSat, Jul 5, 2:00 AM PDT · 14698 days ago · 8 km deep · 76 km away
27. 1.813 km N of Morgan Hill, CaliforniaSat, Jul 5, 7:26 AM PDT · 14698 days ago · 4 km deep · 59 km away
28. 2.123 km NE of Greenfield, CaliforniaSat, Jul 5, 1:34 PM PDT · 14698 days ago · 6 km deep · 46 km away
29. 1.610 km NW of Pacific Grove, CaliforniaSat, Jul 5, 2:45 PM PDT · 14698 days ago · 7 km deep · 53 km away
30. 1.613 km ENE of East Foothills, CaliforniaSat, Jul 5, 6:44 PM PDT · 14697 days ago · 6 km deep · 80 km away
31. 1.76 km NE of Hollister, CaliforniaSat, Jul 5, 9:22 PM PDT · 14697 days ago · 8 km deep · 17 km away
32. 1.921 km NE of Soledad, CaliforniaSun, Jul 6, 10:09 AM PDT · 14697 days ago · 6 km deep · 31 km away
33. 2.72 km SSW of San Juan Bautista, CaliforniaMon, Jul 7, 12:28 AM PDT · 14696 days ago · 4 km deep · 15 km away
34. 2.223 km ENE of San Lucas, CaliforniaMon, Jul 7, 6:25 AM PDT · 14696 days ago · 6 km deep · 79 km away
35. 1.818 km SSW of Volta, CaliforniaMon, Jul 7, 11:59 AM PDT · 14696 days ago · 2 km deep · 42 km away
36. 4.424 km SSW of Big Sur, CaliforniaMon, Jul 7, 5:40 PM PDT · 14695 days ago · 15 km deep · 87 km away
37. 3.024 km S of Big Sur, CaliforniaMon, Jul 7, 5:41 PM PDT · 14695 days ago · 18 km deep · 86 km away
38. 2.420 km S of Big Sur, CaliforniaMon, Jul 7, 5:45 PM PDT · 14695 days ago · 17 km deep · 83 km away
39. 2.220 km S of Big Sur, CaliforniaMon, Jul 7, 5:50 PM PDT · 14695 days ago · 16 km deep · 82 km away
40. 2.220 km S of Big Sur, CaliforniaMon, Jul 7, 6:30 PM PDT · 14695 days ago · 17 km deep · 82 km away
41. 2.118 km S of Big Sur, CaliforniaMon, Jul 7, 9:05 PM PDT · 14695 days ago · 16 km deep · 79 km away
42. 2.520 km S of Big Sur, CaliforniaMon, Jul 7, 9:55 PM PDT · 14695 days ago · 6 km deep · 83 km away
43. 1.920 km S of Big Sur, CaliforniaTue, Jul 8, 12:01 AM PDT · 14695 days ago · 16 km deep · 83 km away
44. 1.624 km NE of Greenfield, CaliforniaTue, Jul 8, 1:25 AM PDT · 14695 days ago · 5 km deep · 49 km away
45. 1.813 km S of Tres Pinos, CaliforniaTue, Jul 8, 3:50 AM PDT · 14695 days ago · 3 km deep · 13 km away
46. 2.319 km S of Big Sur, CaliforniaTue, Jul 8, 8:22 AM PDT · 14695 days ago · 16 km deep · 82 km away
47. 2.46 km NNE of Tres Pinos, CaliforniaTue, Jul 8, 12:48 PM PDT · 14695 days ago · 6 km deep · 15 km away
48. 2.320 km S of Big Sur, CaliforniaTue, Jul 8, 11:04 PM PDT · 14694 days ago · 18 km deep · 83 km away
49. 2.319 km S of Big Sur, CaliforniaTue, Jul 8, 11:24 PM PDT · 14694 days ago · 17 km deep · 82 km away
50. 1.818 km NE of East Foothills, CaliforniaWed, Jul 9, 4:02 AM PDT · 14694 days ago · 8 km deep · 89 km away
51. 1.822 km S of Big Sur, CaliforniaWed, Jul 9, 4:53 AM PDT · 14694 days ago · 18 km deep · 84 km away
52. 2.2Central CaliforniaWed, Jul 9, 6:32 AM PDT · 14694 days ago · 4 km deep · 20 km away
53. 1.725 km NE of Soledad, CaliforniaWed, Jul 9, 8:43 AM PDT · 14694 days ago · 6 km deep · 28 km away
54. 2.93 km W of San Juan Bautista, CaliforniaWed, Jul 9, 9:01 PM PDT · 14693 days ago · 7 km deep · 19 km away
55. 2.120 km S of Big Sur, CaliforniaWed, Jul 9, 10:59 PM PDT · 14693 days ago · 17 km deep · 82 km away
56. 1.719 km SSE of Big Sur, CaliforniaWed, Jul 9, 11:59 PM PDT · 14693 days ago · 4 km deep · 77 km away
57. 1.817 km SSE of Tres Pinos, CaliforniaThu, Jul 10, 4:44 AM PDT · 14693 days ago · 6 km deep · 18 km away
58. 1.68 km ENE of Gilroy, CaliforniaThu, Jul 10, 12:43 PM PDT · 14693 days ago · 4 km deep · 34 km away
59. 2.121 km S of Big Sur, CaliforniaThu, Jul 10, 1:01 PM PDT · 14693 days ago · 17 km deep · 83 km away
60. 1.920 km S of Big Sur, CaliforniaThu, Jul 10, 1:50 PM PDT · 14693 days ago · 17 km deep · 83 km away

The first 60 of 176.

Before

1. 1.921 km NE of San Lucas, CaliforniaSat, Jun 28, 8:40 AM PDT · 14705 days ago · 6 km deep · 72 km away
2. 2.121 km NE of Soledad, CaliforniaSat, Jun 28, 3:05 AM PDT · 14705 days ago · 5 km deep · 33 km away
3. 1.723 km NNE of San Lucas, CaliforniaSat, Jun 28, 12:41 AM PDT · 14705 days ago · 5 km deep · 68 km away
4. 2.318 km NE of East Foothills, CaliforniaFri, Jun 27, 7:33 PM PDT · 14705 days ago · 9 km deep · 88 km away
5. 1.66 km SE of Tres Pinos, CaliforniaFri, Jun 27, 6:51 PM PDT · 14705 days ago · 8 km deep · 13 km away
6. 1.824 km NE of Greenfield, CaliforniaThu, Jun 26, 7:39 PM PDT · 14706 days ago · 6 km deep · 44 km away
7. 1.812 km ENE of East Foothills, CaliforniaThu, Jun 26, 11:57 AM PDT · 14707 days ago · 7 km deep · 78 km away
8. 1.516 km NE of East Foothills, CaliforniaThu, Jun 26, 5:24 AM PDT · 14707 days ago · 10 km deep · 84 km away
9. 2.03 km W of San Juan Bautista, CaliforniaWed, Jun 25, 8:53 PM PDT · 14707 days ago · 4 km deep · 18 km away
10. 1.76 km ESE of Tres Pinos, CaliforniaWed, Jun 25, 4:25 PM PDT · 14707 days ago · 9 km deep · 14 km away
11. 1.517 km SSE of Tres Pinos, CaliforniaWed, Jun 25, 2:51 PM PDT · 14707 days ago · 6 km deep · 18 km away
12. 1.518 km SSE of Livermore, CaliforniaWed, Jun 25, 9:42 AM PDT · 14708 days ago · 7 km deep · 91 km away
13. 2.118 km SSE of Livermore, CaliforniaWed, Jun 25, 8:11 AM PDT · 14708 days ago · 7 km deep · 91 km away
14. 2.410 km NNE of East Foothills, CaliforniaWed, Jun 25, 3:50 AM PDT · 14708 days ago · 8 km deep · 86 km away
15. 1.79 km NNE of East Foothills, CaliforniaTue, Jun 24, 11:57 PM PDT · 14708 days ago · 8 km deep · 86 km away
16. 1.64 km ESE of Tres Pinos, CaliforniaTue, Jun 24, 5:59 PM PDT · 14708 days ago · 8 km deep · 12 km away
17. 2.29 km NE of Gilroy, CaliforniaMon, Jun 23, 10:13 PM PDT · 14709 days ago · 9 km deep · 37 km away
18. 2.019 km SSE of Livermore, CaliforniaMon, Jun 23, 9:58 PM PDT · 14709 days ago · 6 km deep · 89 km away
19. 2.25 km NNE of Tres Pinos, CaliforniaMon, Jun 23, 4:39 PM PDT · 14709 days ago · 7 km deep · 15 km away
20. 1.517 km NE of East Foothills, CaliforniaMon, Jun 23, 3:08 AM PDT · 14710 days ago · 2 km deep · 86 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc75567. Read Thu, Oct 1, 2026, 9:18 AM UTC.