M1.5 earthquake 6 km NE of Ridgemark, California

Magnitude

1.5 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Jul 11, 1989, 12:43 PM PDT

UTC

1989-07-11 19:43:01 UTC

Depth

5.8 km (3.6 mi), shallow

Epicenter

36.851° N, 121.317° 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

±0.19

Depth from

From location

Station coverage gap

103°

Stations used

36

• Ridgemark, CaliforniaPopulation 3,016. Forecast6 kmNE
• Hollister, CaliforniaPopulation 37,462. Forecast8 kmE
• Salinas, CaliforniaPopulation 157,380. Forecast36 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast418 kmNW

After

1. 2.07 km ENE of Interlaken, CaliforniaThu, Jul 13, 8:55 AM PDT · 13595 days ago · 8 km deep · 34 km away
2. 2.121 km SSE of Tres Pinos, CaliforniaThu, Jul 13, 2:19 PM PDT · 13595 days ago · 5 km deep · 27 km away
3. 2.426 km ENE of Soledad, CaliforniaThu, Jul 13, 7:37 PM PDT · 13594 days ago · 8 km deep · 39 km away
4. 2.111 km ESE of Gilroy, CaliforniaSat, Jul 15, 7:54 AM PDT · 13593 days ago · 5 km deep · 17 km away
5. 2.019 km WNW of Diablo Grande, CaliforniaSat, Jul 15, 4:29 PM PDT · 13592 days ago · 3 km deep · 73 km away
6. 2.429 km E of Tres Pinos, CaliforniaSun, Jul 16, 7:27 AM PDT · 13592 days ago · 4 km deep · 30 km away
7. 2.510 km S of Tres Pinos, CaliforniaSun, Jul 16, 7:28 AM PDT · 13592 days ago · 5 km deep · 17 km away
8. 2.430 km E of Tres Pinos, CaliforniaSun, Jul 16, 7:29 AM PDT · 13592 days ago · 4 km deep · 30 km away
9. 1.715 km E of Seven Trees, CaliforniaSun, Jul 16, 2:54 PM PDT · 13592 days ago · 6 km deep · 57 km away
10. 1.912 km ESE of East Foothills, CaliforniaSun, Jul 16, 11:17 PM PDT · 13591 days ago · 8 km deep · 62 km away
11. 2.521 km SSE of Tres Pinos, CaliforniaMon, Jul 17, 12:48 PM PDT · 13591 days ago · 5 km deep · 28 km away
12. 1.921 km SSE of Tres Pinos, CaliforniaMon, Jul 17, 1:03 PM PDT · 13591 days ago · 5 km deep · 28 km away
13. 3.87 km NE of Hollister, CaliforniaTue, Jul 18, 4:07 AM PDT · 13590 days ago · 8 km deep · 6 km away
14. 2.37 km NE of Hollister, CaliforniaTue, Jul 18, 5:49 AM PDT · 13590 days ago · 6 km deep · 6 km away
15. 2.17 km NE of Hollister, CaliforniaTue, Jul 18, 5:52 AM PDT · 13590 days ago · 6 km deep · 6 km away
16. 3.17 km NE of Hollister, CaliforniaTue, Jul 18, 8:35 AM PDT · 13590 days ago · 6 km deep · 6 km away
17. 3.27 km E of East Foothills, CaliforniaTue, Jul 18, 8:53 AM PDT · 13590 days ago · 8 km deep · 69 km away
18. 1.67 km NE of Hollister, CaliforniaTue, Jul 18, 10:37 AM PDT · 13590 days ago · 6 km deep · 6 km away
19. 1.87 km NE of Hollister, CaliforniaTue, Jul 18, 3:16 PM PDT · 13590 days ago · 6 km deep · 7 km away
20. 2.412 km SSE of Tres Pinos, CaliforniaWed, Jul 19, 4:22 PM PDT · 13588 days ago · 5 km deep · 19 km away
21. 2.821 km W of Three Rocks, CaliforniaWed, Jul 19, 10:54 PM PDT · 13588 days ago · 4 km deep · 71 km away
22. 3.37 km NE of Hollister, CaliforniaWed, Jul 19, 10:58 PM PDT · 13588 days ago · 8 km deep · 6 km away
23. 1.77 km NE of Hollister, CaliforniaThu, Jul 20, 12:12 AM PDT · 13588 days ago · 7 km deep · 6 km away
24. 1.623 km ENE of Soledad, CaliforniaThu, Jul 20, 6:34 AM PDT · 13588 days ago · 4 km deep · 44 km away
25. 2.57 km NE of Hollister, CaliforniaThu, Jul 20, 8:32 AM PDT · 13588 days ago · 7 km deep · 7 km away
26. 2.211 km S of Tres Pinos, CaliforniaThu, Jul 20, 2:32 PM PDT · 13588 days ago · 4 km deep · 19 km away
27. 2.012 km ENE of East Foothills, CaliforniaThu, Jul 20, 4:44 PM PDT · 13587 days ago · 8 km deep · 72 km away
28. 1.79 km ENE of Morgan Hill, CaliforniaThu, Jul 20, 5:17 PM PDT · 13587 days ago · 3 km deep · 41 km away
29. 1.77 km NE of Hollister, CaliforniaFri, Jul 21, 5:53 PM PDT · 13586 days ago · 7 km deep · 7 km away
30. 2.07 km NE of Hollister, CaliforniaSat, Jul 22, 1:45 AM PDT · 13586 days ago · 7 km deep · 6 km away
31. 2.23 km S of San Juan Bautista, CaliforniaSat, Jul 22, 1:44 PM PDT · 13586 days ago · 7 km deep · 20 km away
32. 1.621 km NE of Soledad, CaliforniaSat, Jul 22, 8:37 PM PDT · 13585 days ago · 3 km deep · 36 km away
33. 1.531 km NE of Soledad, CaliforniaSun, Jul 23, 7:39 AM PDT · 13585 days ago · 7 km deep · 38 km away
34. 1.923 km NE of Soledad, CaliforniaSun, Jul 23, 1:01 PM PDT · 13585 days ago · 9 km deep · 37 km away
35. 3.23 km S of San Juan Bautista, CaliforniaSun, Jul 23, 7:37 PM PDT · 13584 days ago · 7 km deep · 20 km away
36. 3.23 km SSW of San Juan Bautista, CaliforniaSun, Jul 23, 8:08 PM PDT · 13584 days ago · 8 km deep · 21 km away
37. 2.05 km E of Sunol, CaliforniaSun, Jul 23, 10:38 PM PDT · 13584 days ago · 8 km deep · 94 km away
38. 1.63 km S of San Juan Bautista, CaliforniaMon, Jul 24, 2:48 AM PDT · 13584 days ago · 7 km deep · 20 km away
39. 1.519 km SSE of Tres Pinos, CaliforniaMon, Jul 24, 9:37 PM PDT · 13583 days ago · 7 km deep · 26 km away
40. 1.83 km S of San Juan Bautista, CaliforniaTue, Jul 25, 7:32 AM PDT · 13583 days ago · 6 km deep · 20 km away
41. 2.421 km NE of Soledad, CaliforniaTue, Jul 25, 8:55 AM PDT · 13583 days ago · 5 km deep · 36 km away
42. 2.15 km SSW of Ridgemark, CaliforniaTue, Jul 25, 10:48 AM PDT · 13583 days ago · 5 km deep · 12 km away
43. 1.65 km W of Hollister, CaliforniaTue, Jul 25, 4:38 PM PDT · 13582 days ago · 6 km deep · 13 km away
44. 1.725 km ESE of Tres Pinos, CaliforniaTue, Jul 25, 6:24 PM PDT · 13582 days ago · 36 km deep · 28 km away
45. 1.60 km WSW of Hollister, CaliforniaTue, Jul 25, 9:09 PM PDT · 13582 days ago · 7 km deep · 8 km away
46. 1.55 km W of Hollister, CaliforniaWed, Jul 26, 7:09 AM PDT · 13582 days ago · 5 km deep · 13 km away
47. 3.07 km NE of Hollister, CaliforniaFri, Jul 28, 1:51 AM PDT · 13580 days ago · 8 km deep · 6 km away
48. 1.724 km NE of Greenfield, CaliforniaFri, Jul 28, 2:20 PM PDT · 13580 days ago · 5 km deep · 50 km away
49. 1.67 km NE of Hollister, CaliforniaSat, Jul 29, 9:25 AM PDT · 13579 days ago · 7 km deep · 6 km away
50. 3.01 km W of Lexington Hills, CaliforniaSun, Jul 30, 10:12 PM PDT · 13577 days ago · 5 km deep · 69 km away
51. 3.110 km NNE of East Foothills, CaliforniaMon, Jul 31, 3:25 AM PDT · 13577 days ago · 7 km deep · 79 km away
52. 1.710 km NNE of East Foothills, CaliforniaMon, Jul 31, 3:36 AM PDT · 13577 days ago · 7 km deep · 79 km away
53. 1.97 km SE of San Juan Bautista, CaliforniaMon, Jul 31, 3:54 AM PDT · 13577 days ago · 10 km deep · 16 km away
54. 1.68 km SE of San Juan Bautista, CaliforniaMon, Jul 31, 4:05 AM PDT · 13577 days ago · 10 km deep · 16 km away
55. 2.510 km NNE of East Foothills, CaliforniaMon, Jul 31, 9:47 AM PDT · 13577 days ago · 7 km deep · 79 km away
56. 2.67 km NE of Hollister, CaliforniaTue, Aug 1, 3:32 AM PDT · 13576 days ago · 7 km deep · 7 km away
57. 2.78 km ENE of Morgan Hill, CaliforniaWed, Aug 2, 6:25 AM PDT · 13575 days ago · 3 km deep · 41 km away
58. 1.66 km ENE of East Foothills, CaliforniaThu, Aug 3, 10:41 AM PDT · 13574 days ago · 6 km deep · 72 km away
59. 1.627 km NE of Soledad, CaliforniaFri, Aug 4, 7:43 PM PDT · 13572 days ago · 10 km deep · 37 km away
60. 2.410 km SSE of Tres Pinos, CaliforniaSat, Aug 5, 2:24 AM PDT · 13572 days ago · 12 km deep · 18 km away

The first 60 of 166.

Before

1. 1.628 km ENE of Soledad, CaliforniaMon, Jul 10, 2:50 PM PDT · 13598 days ago · 9 km deep · 40 km away
2. 1.911 km SSW of Carmel-by-the-Sea, CaliforniaMon, Jul 10, 1:41 PM PDT · 13598 days ago · 5 km deep · 73 km away
3. 1.928 km ENE of Soledad, CaliforniaMon, Jul 10, 8:36 AM PDT · 13598 days ago · 9 km deep · 40 km away
4. 2.328 km ENE of Soledad, CaliforniaMon, Jul 10, 7:17 AM PDT · 13598 days ago · 9 km deep · 40 km away
5. 1.816 km SSE of Livermore, CaliforniaSun, Jul 9, 3:54 PM PDT · 13599 days ago · 2 km deep · 85 km away
6. 3.96 km ENE of East Foothills, CaliforniaSun, Jul 9, 6:38 AM PDT · 13599 days ago · 8 km deep · 73 km away
7. 1.727 km NE of Soledad, CaliforniaSat, Jul 8, 5:10 PM PDT · 13599 days ago · 7 km deep · 37 km away
8. 2.810 km ENE of East Foothills, CaliforniaSat, Jul 8, 10:38 AM PDT · 13600 days ago · 7 km deep · 72 km away
9. 2.36 km SW of Gilroy, CaliforniaFri, Jul 7, 10:05 AM PDT · 13601 days ago · 4 km deep · 30 km away
10. 1.66 km SW of Gilroy, CaliforniaFri, Jul 7, 9:35 AM PDT · 13601 days ago · 5 km deep · 30 km away
11. 2.021 km NE of Soledad, CaliforniaThu, Jul 6, 8:50 PM PDT · 13601 days ago · 6 km deep · 32 km away
12. 2.4Central CaliforniaWed, Jul 5, 3:14 PM PDT · 13603 days ago · 2 km deep · 45 km away
13. 2.06 km NE of East Foothills, CaliforniaWed, Jul 5, 8:35 AM PDT · 13603 days ago · 7 km deep · 75 km away
14. 1.815 km E of Seven Trees, CaliforniaWed, Jul 5, 3:44 AM PDT · 13603 days ago · 6 km deep · 57 km away
15. 2.221 km NE of East Foothills, CaliforniaTue, Jul 4, 4:30 AM PDT · 13604 days ago · 7 km deep · 76 km away
16. 1.918 km ENE of Gonzales, CaliforniaTue, Jul 4, 12:48 AM PDT · 13604 days ago · 6 km deep · 29 km away
17. 1.710 km SSE of Big Sur, CaliforniaTue, Jul 4, 12:12 AM PDT · 13604 days ago · 20 km deep · 84 km away
18. 1.712 km SSE of Tres Pinos, CaliforniaSun, Jul 2, 1:34 PM PDT · 13606 days ago · 5 km deep · 19 km away
19. 2.512 km SSE of Tres Pinos, CaliforniaSun, Jul 2, 1:25 PM PDT · 13606 days ago · 5 km deep · 19 km away
20. 1.511 km ENE of East Foothills, CaliforniaSat, Jul 1, 5:40 AM PDT · 13607 days ago · 7 km deep · 72 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc139945. Read Fri, Oct 2, 2026, 10:29 AM UTC.