M2.4 earthquake 7 km WSW of Ridgemark, California

Magnitude

2.4 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, Apr 4, 1976, 8:47 AM PST

UTC

1976-04-04 16:47:46 UTC

Depth

9.8 km (6.1 mi), shallow

Epicenter

36.791° N, 121.442° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.68

Depth from

From location

Station coverage gap

83°

Stations used

24

• Ridgemark, CaliforniaPopulation 3,016. Forecast7 kmWSW
• Hollister, CaliforniaPopulation 37,462. Forecast8 kmSSW
• Salinas, CaliforniaPopulation 157,380. Forecast23 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast420 kmNW

After

1. 2.52 km NW of Hollister, CaliforniaMon, Apr 5, 8:36 AM PST · 18441 days ago · 4 km deep · 9 km away
2. 2.03 km WNW of Pacific Grove, CaliforniaMon, Apr 5, 10:06 AM PST · 18441 days ago · 7 km deep · 49 km away
3. 2.05 km ENE of East Foothills, CaliforniaMon, Apr 5, 4:15 PM PST · 18440 days ago · 3 km deep · 74 km away
4. 2.79 km NW of Hollister, CaliforniaMon, Apr 5, 4:24 PM PST · 18440 days ago · 6 km deep · 14 km away
5. 1.64 km NE of Ridgemark, CaliforniaMon, Apr 5, 5:02 PM PST · 18440 days ago · 6 km deep · 12 km away
6. 2.323 km NE of King City, CaliforniaMon, Apr 5, 6:41 PM PST · 18440 days ago · 5 km deep · 66 km away
7. 2.36 km NNE of East Foothills, CaliforniaTue, Apr 6, 4:48 AM PST · 18440 days ago · 7 km deep · 78 km away
8. 3.225 km ENE of Greenfield, CaliforniaTue, Apr 6, 3:48 PM PST · 18439 days ago · 1 km deep · 56 km away
9. 2.413 km N of Hollister, CaliforniaTue, Apr 6, 5:17 PM PST · 18439 days ago · 7 km deep · 21 km away
10. 3.025 km ENE of Greenfield, CaliforniaTue, Apr 6, 5:51 PM PST · 18439 days ago · -1 km deep · 56 km away
11. 1.68 km ENE of East Foothills, CaliforniaWed, Apr 7, 12:01 AM PST · 18439 days ago · 2 km deep · 74 km away
12. 2.96 km SE of Tres Pinos, CaliforniaWed, Apr 7, 2:15 PM PST · 18439 days ago · 10 km deep · 17 km away
13. 1.921 km NNE of San Ardo, CaliforniaWed, Apr 7, 9:36 PM PST · 18438 days ago · 6 km deep · 90 km away
14. 1.924 km NE of Greenfield, CaliforniaThu, Apr 8, 1:56 AM PST · 18438 days ago · 5 km deep · 50 km away
15. 1.59 km SSW of Tres Pinos, CaliforniaThu, Apr 8, 5:10 AM PST · 18438 days ago · 2 km deep · 13 km away
16. 1.71 km SW of Campbell, CaliforniaThu, Apr 8, 6:49 PM PST · 18437 days ago · 6 km deep · 71 km away
17. 3.532 km W of Three Rocks, CaliforniaThu, Apr 8, 8:09 PM PST · 18437 days ago · 8 km deep · 68 km away
18. 2.07 km NNE of East Foothills, CaliforniaThu, Apr 8, 9:13 PM PST · 18437 days ago · 10 km deep · 77 km away
19. 1.54 km WNW of San Juan Bautista, CaliforniaFri, Apr 9, 1:36 AM PST · 18437 days ago · 7 km deep · 15 km away
20. 2.221 km NE of Soledad, CaliforniaFri, Apr 9, 4:35 AM PST · 18437 days ago · 6 km deep · 34 km away
21. 2.523 km NNE of San Lucas, CaliforniaFri, Apr 9, 5:17 AM PST · 18437 days ago · 3 km deep · 73 km away
22. 2.621 km SE of Tres Pinos, CaliforniaFri, Apr 9, 5:31 AM PST · 18437 days ago · 8 km deep · 30 km away
23. 1.719 km SSE of Tres Pinos, CaliforniaFri, Apr 9, 7:37 AM PST · 18437 days ago · 5 km deep · 27 km away
24. 3.522 km NE of Soledad, CaliforniaFri, Apr 9, 10:48 AM PST · 18437 days ago · 4 km deep · 32 km away
25. 3.023 km NNE of San Lucas, CaliforniaFri, Apr 9, 6:13 PM PST · 18436 days ago · 4 km deep · 72 km away
26. 2.424 km NE of Soledad, CaliforniaSat, Apr 10, 7:41 AM PST · 18436 days ago · 8 km deep · 38 km away
27. 2.916 km E of Seven Trees, CaliforniaSat, Apr 10, 4:10 PM PST · 18435 days ago · 7 km deep · 58 km away
28. 2.031 km NE of Soledad, CaliforniaSat, Apr 10, 6:41 PM PST · 18435 days ago · 9 km deep · 43 km away
29. 1.839 km W of Three Rocks, CaliforniaSun, Apr 11, 1:58 AM PST · 18435 days ago · 11 km deep · 61 km away
30. 3.57 km WSW of Gilroy, CaliforniaSun, Apr 11, 3:23 PM PST · 18435 days ago · 4 km deep · 27 km away
31. 1.922 km ENE of Soledad, CaliforniaSun, Apr 11, 3:33 PM PST · 18434 days ago · 4 km deep · 44 km away
32. 2.18 km WSW of Gilroy, CaliforniaMon, Apr 12, 1:50 AM PST · 18434 days ago · 3 km deep · 27 km away
33. 2.522 km ENE of Soledad, CaliforniaMon, Apr 12, 6:22 AM PST · 18434 days ago · 5 km deep · 44 km away
34. 2.17 km WSW of Gilroy, CaliforniaMon, Apr 12, 12:39 PM PST · 18434 days ago · 4 km deep · 28 km away
35. 3.11 km ESE of Aromas, CaliforniaMon, Apr 12, 8:46 PM PST · 18433 days ago · 8 km deep · 19 km away
36. 2.3Central CaliforniaMon, Apr 12, 11:05 PM PST · 18433 days ago · 6 km deep · 19 km away
37. 2.121 km NE of Soledad, CaliforniaTue, Apr 13, 1:35 AM PST · 18433 days ago · 3 km deep · 32 km away
38. 2.66 km ENE of Aromas, CaliforniaTue, Apr 13, 4:19 PM PST · 18432 days ago · 4 km deep · 19 km away
39. 2.221 km NNE of Soledad, CaliforniaTue, Apr 13, 7:42 PM PST · 18432 days ago · 8 km deep · 30 km away
40. 2.425 km NE of Greenfield, CaliforniaWed, Apr 14, 1:45 AM PST · 18432 days ago · 7 km deep · 54 km away
41. 2.523 km ENE of Soledad, CaliforniaWed, Apr 14, 6:19 AM PST · 18432 days ago · 5 km deep · 44 km away
42. 3.621 km NE of Soledad, CaliforniaWed, Apr 14, 12:44 PM PST · 18432 days ago · 3 km deep · 36 km away
43. 2.82 km ESE of Aromas, CaliforniaWed, Apr 14, 8:14 PM PST · 18431 days ago · 6 km deep · 18 km away
44. 2.17 km WSW of Ridgemark, CaliforniaThu, Apr 15, 12:12 AM PST · 18431 days ago · 8 km deep · 1 km away
45. 3.17 km NE of San Juan Bautista, CaliforniaThu, Apr 15, 5:24 AM PST · 18431 days ago · 8 km deep · 12 km away
46. 2.07 km NE of San Juan Bautista, CaliforniaThu, Apr 15, 5:35 AM PST · 18431 days ago · 10 km deep · 12 km away
47. 1.623 km ENE of Soledad, CaliforniaThu, Apr 15, 3:00 PM PST · 18431 days ago · 2 km deep · 47 km away
48. 2.421 km ENE of San Lucas, CaliforniaThu, Apr 15, 4:03 PM PST · 18430 days ago · 8 km deep · 83 km away
49. 3.023 km ENE of San Lucas, CaliforniaThu, Apr 15, 5:50 PM PST · 18430 days ago · 5 km deep · 86 km away
50. 2.87 km NNE of Interlaken, CaliforniaThu, Apr 15, 9:37 PM PST · 18430 days ago · 11 km deep · 34 km away
51. 2.029 km ENE of Soledad, CaliforniaFri, Apr 16, 2:22 AM PST · 18430 days ago · 5 km deep · 45 km away
52. 1.910 km S of Tres Pinos, CaliforniaFri, Apr 16, 7:08 AM PST · 18430 days ago · 7 km deep · 14 km away
53. 4.228 km W of Three Rocks, CaliforniaFri, Apr 16, 9:07 AM PST · 18430 days ago · 11 km deep · 72 km away
54. 2.329 km W of Three Rocks, CaliforniaFri, Apr 16, 9:10 AM PST · 18430 days ago · 9 km deep · 71 km away
55. 1.622 km NNE of Soledad, CaliforniaFri, Apr 16, 10:56 PM PST · 18429 days ago · 5 km deep · 29 km away
56. 1.826 km NE of Soledad, CaliforniaSat, Apr 17, 12:37 PM PST · 18429 days ago · 8 km deep · 41 km away
57. 2.121 km NE of Soledad, CaliforniaSun, Apr 18, 9:11 AM PST · 18428 days ago · 2 km deep · 35 km away
58. 1.7Central CaliforniaSun, Apr 18, 12:25 PM PST · 18428 days ago · 3 km deep · 13 km away
59. 1.67 km NNW of Hollister, CaliforniaSun, Apr 18, 7:48 PM PST · 18427 days ago · 7 km deep · 14 km away
60. 3.07 km NNW of Hollister, CaliforniaSun, Apr 18, 8:15 PM PST · 18427 days ago · 7 km deep · 14 km away

The first 60 of 182.

Before

1. 2.813 km N of Morgan Hill, CaliforniaSat, Apr 3, 10:50 PM PST · 18442 days ago · 5 km deep · 54 km away
2. 1.85 km SSW of Gilroy, CaliforniaSat, Apr 3, 10:38 AM PST · 18443 days ago · 6 km deep · 24 km away
3. 1.87 km NE of San Juan Bautista, CaliforniaSat, Apr 3, 5:37 AM PST · 18443 days ago · 4 km deep · 13 km away
4. 1.87 km NE of San Juan Bautista, CaliforniaSat, Apr 3, 4:58 AM PST · 18443 days ago · 5 km deep · 13 km away
5. 2.722 km NE of San Lucas, CaliforniaFri, Apr 2, 3:39 PM PST · 18443 days ago · 5 km deep · 75 km away
6. 2.824 km NE of Greenfield, CaliforniaFri, Apr 2, 11:51 AM PST · 18444 days ago · 7 km deep · 49 km away
7. 2.010 km NNW of Hollister, CaliforniaFri, Apr 2, 6:31 AM PST · 18444 days ago · 4 km deep · 16 km away
8. 2.19 km NE of San Juan Bautista, CaliforniaFri, Apr 2, 12:22 AM PST · 18444 days ago · 5 km deep · 14 km away
9. 2.06 km NE of East Foothills, CaliforniaThu, Apr 1, 1:18 AM PST · 18445 days ago · 8 km deep · 76 km away
10. 2.09 km NW of Hollister, CaliforniaWed, Mar 31, 10:51 AM PST · 18446 days ago · 1 km deep · 15 km away
11. 2.04 km N of Day Valley, CaliforniaWed, Mar 31, 1:34 AM PST · 18446 days ago · 4 km deep · 49 km away
12. 2.0Central CaliforniaTue, Mar 30, 1:39 PM PST · 18447 days ago · 7 km deep · 64 km away
13. 2.422 km NE of Greenfield, CaliforniaTue, Mar 30, 11:16 AM PST · 18447 days ago · 0 km deep · 53 km away
14. 2.0Central CaliforniaTue, Mar 30, 6:00 AM PST · 18447 days ago · 7 km deep · 23 km away
15. 2.221 km NE of Soledad, CaliforniaMon, Mar 29, 7:35 PM PST · 18447 days ago · 8 km deep · 40 km away
16. 2.810 km NW of Hollister, CaliforniaSun, Mar 28, 11:28 PM PST · 18448 days ago · 4 km deep · 16 km away
17. 1.711 km N of Morgan Hill, CASun, Mar 28, 5:12 PM PST · 18448 days ago · 7 km deep · 52 km away
18. 2.68 km ENE of Morgan Hill, CaliforniaSun, Mar 28, 3:52 PM PST · 18448 days ago · 3 km deep · 42 km away
19. 2.016 km NE of East Foothills, CaliforniaSun, Mar 28, 3:30 PM PST · 18449 days ago · 7 km deep · 81 km away
20. 1.99 km NW of Hollister, CaliforniaSun, Mar 28, 7:17 AM PST · 18449 days ago · 3 km deep · 15 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1029328. Read Thu, Oct 1, 2026, 11:02 AM UTC.