M1.8 earthquake 6 km NE of Ridgemark, California

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Tue, Oct 26, 1976, 7:37 AM PDT

UTC

1976-10-26 14:37:51 UTC

Depth

3.8 km (2.4 mi), shallow

Epicenter

36.855° N, 121.320° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.5 km in depth

Magnitude uncertainty

±0.22

Depth from

From location

Station coverage gap

76°

Stations used

19

• Ridgemark, CaliforniaPopulation 3,016. Forecast6 kmNE
• Hollister, CaliforniaPopulation 37,462. Forecast7 kmE
• Salinas, CaliforniaPopulation 157,380. Forecast36 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast418 kmNW

After

1. 2.526 km SE of Tres Pinos, CaliforniaTue, Oct 26, 11:15 AM PDT · 18238 days ago · 5 km deep · 32 km away
2. 1.76 km NE of Ridgemark, CaliforniaTue, Oct 26, 2:18 PM PDT · 18238 days ago · 3 km deep · 1 km away
3. 2.524 km ENE of Soledad, CaliforniaTue, Oct 26, 2:38 PM PDT · 18238 days ago · 3 km deep · 45 km away
4. 2.222 km NNE of San Ardo, CaliforniaWed, Oct 27, 6:37 AM PDT · 18237 days ago · 5 km deep · 88 km away
5. 1.89 km NW of Hollister, CaliforniaWed, Oct 27, 10:24 AM PDT · 18237 days ago · 6 km deep · 15 km away
6. 1.717 km N of Morgan Hill, CAWed, Oct 27, 5:30 PM PDT · 18237 days ago · 6 km deep · 55 km away
7. 2.922 km ENE of Soledad, CaliforniaWed, Oct 27, 10:30 PM PDT · 18237 days ago · 3 km deep · 40 km away
8. 3.124 km NE of Greenfield, CaliforniaThu, Oct 28, 4:22 AM PDT · 18236 days ago · 3 km deep · 49 km away
9. 1.9Central CaliforniaThu, Oct 28, 11:11 PM PDT · 18236 days ago · 8 km deep · 24 km away
10. 1.6Northern CaliforniaThu, Oct 28, 11:18 PM PDT · 18236 days ago · 7 km deep · 92 km away
11. 1.924 km NE of Greenfield, CaliforniaFri, Oct 29, 10:07 AM PDT · 18235 days ago · 7 km deep · 49 km away
12. 1.99 km NW of Hollister, CaliforniaFri, Oct 29, 6:58 PM PDT · 18235 days ago · 5 km deep · 15 km away
13. 2.62 km W of Monte Sereno, CaliforniaFri, Oct 29, 8:47 PM PDT · 18235 days ago · 12 km deep · 76 km away
14. 2.221 km NE of Soledad, CaliforniaSat, Oct 30, 6:06 AM PDT · 18234 days ago · 3 km deep · 35 km away
15. 1.934 km NE of King City, CaliforniaSun, Oct 31, 7:57 AM PST · 18233 days ago · 17 km deep · 67 km away
16. 2.49 km NE of San Juan Bautista, CaliforniaSun, Oct 31, 10:19 PM PST · 18233 days ago · 6 km deep · 15 km away
17. 2.521 km NE of Soledad, CaliforniaMon, Nov 1, 4:11 PM PST · 18232 days ago · 6 km deep · 36 km away
18. 1.73 km W of Cupertino, CaliforniaTue, Nov 2, 8:39 AM PST · 18231 days ago · 6 km deep · 85 km away
19. 1.916 km NNE of Morgan Hill, CaliforniaTue, Nov 2, 1:46 PM PST · 18231 days ago · 8 km deep · 52 km away
20. 2.03 km ENE of Tres Pinos, CaliforniaTue, Nov 2, 4:33 PM PST · 18231 days ago · 11 km deep · 7 km away
21. 2.523 km NNE of San Lucas, CaliforniaWed, Nov 3, 5:36 AM PST · 18230 days ago · 5 km deep · 72 km away
22. 2.110 km NNW of Hollister, CaliforniaWed, Nov 3, 12:45 PM PST · 18230 days ago · 3 km deep · 15 km away
23. 2.921 km NE of Soledad, CaliforniaWed, Nov 3, 4:32 PM PST · 18230 days ago · 9 km deep · 38 km away
24. 3.83 km W of San Juan Bautista, CaliforniaWed, Nov 3, 6:18 PM PST · 18230 days ago · 6 km deep · 23 km away
25. 1.86 km S of Livermore, CaliforniaThu, Nov 4, 6:20 AM PST · 18229 days ago · 1 km deep · 94 km away
26. 2.21 km WNW of Cambrian Park, CaliforniaThu, Nov 4, 2:21 PM PST · 18229 days ago · 8 km deep · 72 km away
27. 2.323 km ENE of Soledad, CaliforniaThu, Nov 4, 2:59 PM PST · 18229 days ago · 2 km deep · 46 km away
28. 2.37 km S of Diablo Grande, CaliforniaThu, Nov 4, 3:12 PM PST · 18229 days ago · 0 km deep · 53 km away
29. 1.97 km NE of San Juan Bautista, CaliforniaSat, Nov 6, 6:40 AM PST · 18227 days ago · 6 km deep · 16 km away
30. 2.622 km NE of San Lucas, CaliforniaMon, Nov 8, 3:06 AM PST · 18225 days ago · 5 km deep · 82 km away
31. 2.522 km NE of Soledad, CaliforniaMon, Nov 8, 3:42 AM PST · 18225 days ago · 5 km deep · 40 km away
32. 1.56 km ENE of Interlaken, CaliforniaTue, Nov 9, 2:42 PM PST · 18224 days ago · 8 km deep · 33 km away
33. 1.69 km NW of Hollister, CaliforniaTue, Nov 9, 4:08 PM PST · 18224 days ago · 8 km deep · 16 km away
34. 3.04 km SSW of Gilroy, CaliforniaTue, Nov 9, 4:48 PM PST · 18224 days ago · 7 km deep · 27 km away
35. 2.322 km NE of San Ardo, CaliforniaTue, Nov 9, 8:53 PM PST · 18224 days ago · 5 km deep · 91 km away
36. 3.013 km S of Tres Pinos, CaliforniaWed, Nov 10, 12:22 AM PST · 18223 days ago · 4 km deep · 21 km away
37. 2.57 km NE of San Juan Bautista, CaliforniaWed, Nov 10, 2:20 PM PST · 18223 days ago · 7 km deep · 15 km away
38. 2.17 km NE of San Juan Bautista, CaliforniaWed, Nov 10, 6:45 PM PST · 18223 days ago · 5 km deep · 15 km away
39. 1.7Central CaliforniaWed, Nov 10, 8:43 PM PST · 18223 days ago · 5 km deep · 16 km away
40. 2.621 km NE of Soledad, CaliforniaThu, Nov 11, 6:06 AM PST · 18222 days ago · 4 km deep · 33 km away
41. 1.922 km ENE of Soledad, CaliforniaThu, Nov 11, 10:07 AM PST · 18222 days ago · 4 km deep · 42 km away
42. 2.922 km ENE of Soledad, CaliforniaThu, Nov 11, 1:39 PM PST · 18222 days ago · 2 km deep · 40 km away
43. 2.48 km NE of San Juan Bautista, CaliforniaFri, Nov 12, 9:20 AM PST · 18221 days ago · 6 km deep · 15 km away
44. 3.05 km WSW of Gilroy, CaliforniaSat, Nov 13, 7:16 AM PST · 18220 days ago · 4 km deep · 30 km away
45. 2.37 km NE of San Juan Bautista, CaliforniaSat, Nov 13, 8:01 AM PST · 18220 days ago · 5 km deep · 16 km away
46. 2.621 km NNE of Soledad, CaliforniaSat, Nov 13, 2:07 PM PST · 18220 days ago · 6 km deep · 31 km away
47. 1.917 km SE of Tres Pinos, CaliforniaSun, Nov 14, 4:31 AM PST · 18219 days ago · 7 km deep · 22 km away
48. 2.13 km SSW of Lexington Hills, CaliforniaSun, Nov 14, 11:28 AM PST · 18219 days ago · 13 km deep · 67 km away
49. 2.828 km SW of South Dos Palos, CaliforniaSun, Nov 14, 1:13 PM PST · 18219 days ago · 2 km deep · 40 km away
50. 1.88 km ESE of East Foothills, CaliforniaSun, Nov 14, 6:56 PM PST · 18219 days ago · 4 km deep · 66 km away
51. 2.55 km SW of Gilroy, CaliforniaSun, Nov 14, 11:01 PM PST · 18218 days ago · 4 km deep · 30 km away
52. 2.825 km NE of San Ardo, CaliforniaMon, Nov 15, 8:07 AM PST · 18218 days ago · 2 km deep · 91 km away
53. 3.012 km S of Three Rocks, CaliforniaMon, Nov 15, 10:11 AM PST · 18218 days ago · 8 km deep · 98 km away
54. 2.74 km W of San Juan Bautista, CaliforniaMon, Nov 15, 1:59 PM PST · 18218 days ago · 7 km deep · 24 km away
55. 2.321 km NE of Soledad, CaliforniaMon, Nov 15, 5:00 PM PST · 18218 days ago · 1 km deep · 36 km away
56. 1.77 km ENE of East Foothills, CaliforniaMon, Nov 15, 7:29 PM PST · 18218 days ago · 8 km deep · 71 km away
57. 2.320 km NE of East Foothills, CaliforniaMon, Nov 15, 8:04 PM PST · 18218 days ago · 7 km deep · 80 km away
58. 2.320 km NE of East Foothills, CaliforniaMon, Nov 15, 8:15 PM PST · 18218 days ago · 7 km deep · 80 km away
59. 2.919 km NE of East Foothills, CaliforniaMon, Nov 15, 8:20 PM PST · 18218 days ago · 8 km deep · 79 km away
60. 2.619 km NE of East Foothills, CaliforniaMon, Nov 15, 8:28 PM PST · 18218 days ago · 7 km deep · 79 km away

The first 60 of 178.

Before

1. 2.95 km WSW of Gilroy, CaliforniaMon, Oct 25, 2:42 PM PDT · 18239 days ago · 3 km deep · 31 km away
2. 2.010 km NW of Hollister, CaliforniaSun, Oct 24, 5:42 PM PDT · 18240 days ago · 3 km deep · 16 km away
3. 1.96 km SE of Tres Pinos, CaliforniaSun, Oct 24, 5:01 PM PDT · 18240 days ago · 10 km deep · 12 km away
4. 3.134 km WSW of Three Rocks, CaliforniaSun, Oct 24, 5:50 AM PDT · 18240 days ago · 12 km deep · 76 km away
5. 1.99 km NE of San Juan Bautista, CaliforniaSun, Oct 24, 4:22 AM PDT · 18240 days ago · 7 km deep · 15 km away
6. 2.322 km NNE of Soledad, CaliforniaSat, Oct 23, 9:42 PM PDT · 18241 days ago · 4 km deep · 31 km away
7. 2.34 km SE of Aromas, CaliforniaSat, Oct 23, 7:22 PM PDT · 18241 days ago · 7 km deep · 25 km away
8. 3.83 km SE of Aromas, CaliforniaSat, Oct 23, 7:19 PM PDT · 18241 days ago · 8 km deep · 26 km away
9. 3.58 km NW of Hollister, CaliforniaSat, Oct 23, 12:24 PM PDT · 18241 days ago · 7 km deep · 15 km away
10. 1.619 km SSE of Tres Pinos, CaliforniaFri, Oct 22, 3:40 PM PDT · 18242 days ago · 5 km deep · 26 km away
11. 2.221 km NE of Soledad, CaliforniaFri, Oct 22, 3:29 AM PDT · 18242 days ago · 3 km deep · 38 km away
12. 2.68 km SSW of Tres Pinos, CaliforniaFri, Oct 22, 12:31 AM PDT · 18242 days ago · 2 km deep · 15 km away
13. 2.623 km NE of San Lucas, CaliforniaThu, Oct 21, 8:12 AM PDT · 18243 days ago · 7 km deep · 74 km away
14. 2.624 km NNE of San Lucas, CaliforniaWed, Oct 20, 11:28 PM PDT · 18244 days ago · 8 km deep · 71 km away
15. 2.210 km SSE of Tres Pinos, CaliforniaWed, Oct 20, 11:21 PM PDT · 18244 days ago · 5 km deep · 17 km away
16. 2.28 km NW of Hollister, CaliforniaWed, Oct 20, 9:12 PM PDT · 18244 days ago · 6 km deep · 15 km away
17. 1.66 km SSW of Gonzales, CaliforniaWed, Oct 20, 7:18 AM PDT · 18244 days ago · 14 km deep · 47 km away
18. 1.71 km E of Campbell, CaliforniaTue, Oct 19, 10:09 PM PDT · 18245 days ago · 3 km deep · 73 km away
19. 2.115 km SSE of Tres Pinos, CaliforniaTue, Oct 19, 12:10 PM PDT · 18245 days ago · 6 km deep · 23 km away
20. 1.916 km SSE of Tres Pinos, CaliforniaTue, Oct 19, 12:09 PM PDT · 18245 days ago · 5 km deep · 23 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1032055. Read Fri, Oct 2, 2026, 6:09 PM UTC.