M1.8 earthquake 30 km NE of Soledad, California

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Dec 20, 1975, 7:40 PM PST

UTC

1975-12-21 03:40:08 UTC

Depth

6.1 km (3.8 mi), shallow

Epicenter

36.589° N, 121.059° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.3 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.61

Depth from

From location

Station coverage gap

75°

Stations used

13

• Soledad, CaliforniaPopulation 25,003. Forecast30 kmNE
• Salinas, CaliforniaPopulation 157,380. Forecast54 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast380 kmNW

After

1. 2.222 km ENE of Soledad, CaliforniaSun, Dec 21, 1:55 AM PST · 18549 days ago · 5 km deep · 9 km away
2. 2.413 km NW of Parkfield, CaliforniaSun, Dec 21, 11:31 AM PST · 18549 days ago · 4 km deep · 82 km away
3. 2.27 km SSW of Tres Pinos, CaliforniaSun, Dec 21, 5:20 PM PST · 18549 days ago · 5 km deep · 32 km away
4. 3.83 km S of Three Rocks, CaliforniaSun, Dec 21, 6:29 PM PST · 18549 days ago · 7 km deep · 61 km away
5. 2.39 km S of Tres Pinos, CaliforniaSun, Dec 21, 10:54 PM PST · 18548 days ago · 4 km deep · 28 km away
6. 1.814 km N of Morgan Hill, CaliforniaMon, Dec 22, 2:35 AM PST · 18548 days ago · 7 km deep · 91 km away
7. 2.624 km NE of Greenfield, CaliforniaMon, Dec 22, 7:24 PM PST · 18548 days ago · 5 km deep · 12 km away
8. 2.123 km NE of King City, CaliforniaMon, Dec 22, 10:56 PM PST · 18547 days ago · 3 km deep · 30 km away
9. 2.525 km ENE of Greenfield, CaliforniaTue, Dec 23, 2:10 AM PST · 18547 days ago · 2 km deep · 19 km away
10. 2.223 km NE of King City, CaliforniaTue, Dec 23, 4:58 AM PST · 18547 days ago · 2 km deep · 30 km away
11. 1.812 km SE of Coalinga, CaliforniaTue, Dec 23, 8:00 AM PST · 18547 days ago · 9 km deep · 92 km away
12. 3.122 km ENE of San Ardo, CaliforniaTue, Dec 23, 8:25 AM PST · 18547 days ago · 6 km deep · 61 km away
13. 1.924 km NE of Greenfield, CaliforniaTue, Dec 23, 12:37 PM PST · 18547 days ago · 5 km deep · 14 km away
14. 2.912 km SE of Coalinga, CaliforniaTue, Dec 23, 6:35 PM PST · 18547 days ago · 9 km deep · 92 km away
15. 1.812 km SE of Coalinga, CaliforniaTue, Dec 23, 6:39 PM PST · 18547 days ago · 9 km deep · 93 km away
16. 2.111 km NW of Parkfield, CaliforniaTue, Dec 23, 10:08 PM PST · 18546 days ago · 8 km deep · 83 km away
17. 2.522 km ENE of San Ardo, CaliforniaWed, Dec 24, 3:16 AM PST · 18546 days ago · 5 km deep · 61 km away
18. 2.722 km ESE of Tres Pinos, CaliforniaWed, Dec 24, 3:21 AM PST · 18546 days ago · 0 km deep · 16 km away
19. 2.912 km SE of Coalinga, CaliforniaWed, Dec 24, 5:40 PM PST · 18546 days ago · 9 km deep · 92 km away
20. 3.215 km E of Seven Trees, CaliforniaWed, Dec 24, 8:45 PM PST · 18546 days ago · 6 km deep · 94 km away
21. 1.99 km NW of Hollister, CaliforniaThu, Dec 25, 2:30 AM PST · 18545 days ago · 6 km deep · 51 km away
22. 2.015 km E of Seven Trees, CaliforniaThu, Dec 25, 2:44 AM PST · 18545 days ago · 6 km deep · 95 km away
23. 1.611 km ESE of Seven Trees, CaliforniaThu, Dec 25, 8:43 AM PST · 18545 days ago · 4 km deep · 94 km away
24. 2.522 km NNE of Soledad, CaliforniaThu, Dec 25, 8:57 PM PST · 18545 days ago · 9 km deep · 14 km away
25. 2.427 km NE of Soledad, CaliforniaFri, Dec 26, 3:46 AM PST · 18544 days ago · 9 km deep · 2 km away
26. 2.724 km ENE of Soledad, CaliforniaFri, Dec 26, 4:13 AM PST · 18544 days ago · 5 km deep · 11 km away
27. 2.124 km ENE of Soledad, CaliforniaFri, Dec 26, 5:45 PM PST · 18544 days ago · 5 km deep · 11 km away
28. 3.07 km NW of Hollister, CaliforniaFri, Dec 26, 8:18 PM PST · 18544 days ago · 8 km deep · 50 km away
29. 2.415 km SSW of Santa Cruz, CaliforniaSat, Dec 27, 2:32 AM PST · 18543 days ago · 1 km deep · 97 km away
30. 1.910 km ESE of Seven Trees, CaliforniaSat, Dec 27, 10:54 AM PST · 18543 days ago · 3 km deep · 94 km away
31. 2.924 km NE of King City, CaliforniaSat, Dec 27, 2:03 PM PST · 18543 days ago · 2 km deep · 24 km away
32. 3.17 km SSW of Cantua Creek, CaliforniaSat, Dec 27, 2:16 PM PST · 18543 days ago · 4 km deep · 65 km away
33. 2.314 km E of Seven Trees, CaliforniaSat, Dec 27, 4:19 PM PST · 18543 days ago · 7 km deep · 97 km away
34. 2.124 km ENE of Soledad, CaliforniaSat, Dec 27, 4:29 PM PST · 18543 days ago · 5 km deep · 11 km away
35. 2.815 km WSW of Lockwood, CaliforniaSat, Dec 27, 7:48 PM PST · 18543 days ago · 12 km deep · 77 km away
36. 2.323 km NNE of San Lucas, CaliforniaSat, Dec 27, 10:00 PM PST · 18542 days ago · 7 km deep · 34 km away
37. 2.524 km ENE of Soledad, CaliforniaSat, Dec 27, 10:50 PM PST · 18542 days ago · 5 km deep · 11 km away
38. 3.217 km SSW of Santa Cruz, CaliforniaSun, Dec 28, 12:33 AM PST · 18542 days ago · 10 km deep · 99 km away
39. 2.624 km ENE of Soledad, CaliforniaSun, Dec 28, 1:16 AM PST · 18542 days ago · 5 km deep · 10 km away
40. 2.59 km NNW of Hollister, CaliforniaSun, Dec 28, 5:14 AM PST · 18542 days ago · 4 km deep · 52 km away
41. 2.313 km SSE of Tres Pinos, CaliforniaSun, Dec 28, 10:20 AM PST · 18542 days ago · 5 km deep · 21 km away
42. 1.89 km NE of San Martin, CaliforniaSun, Dec 28, 5:29 PM PST · 18542 days ago · 8 km deep · 76 km away
43. 2.18 km SSW of Tres Pinos, CaliforniaSun, Dec 28, 6:40 PM PST · 18542 days ago · 3 km deep · 31 km away
44. 2.224 km NE of Greenfield, CaliforniaSun, Dec 28, 7:17 PM PST · 18542 days ago · 5 km deep · 14 km away
45. 2.18 km ENE of San Martin, CaliforniaSun, Dec 28, 11:22 PM PST · 18541 days ago · 8 km deep · 73 km away
46. 1.521 km NE of Soledad, CaliforniaMon, Dec 29, 3:38 AM PST · 18541 days ago · 6 km deep · 9 km away
47. 3.516 km E of Tres Pinos, CaliforniaMon, Dec 29, 7:07 AM PST · 18541 days ago · 6 km deep · 26 km away
48. 1.816 km E of Tres Pinos, CaliforniaMon, Dec 29, 10:07 AM PST · 18541 days ago · 5 km deep · 26 km away
49. 1.818 km NW of Parkfield, CaliforniaMon, Dec 29, 7:29 PM PST · 18541 days ago · 3 km deep · 77 km away
50. 1.516 km E of Tres Pinos, CaliforniaMon, Dec 29, 8:49 PM PST · 18541 days ago · 5 km deep · 26 km away
51. 1.717 km E of Tres Pinos, CaliforniaTue, Dec 30, 5:16 AM PST · 18540 days ago · 3 km deep · 25 km away
52. 2.215 km S of Three Rocks, CaliforniaTue, Dec 30, 5:40 AM PST · 18540 days ago · 6 km deep · 62 km away
53. 3.125 km NW of San Simeon, CaliforniaTue, Dec 30, 10:10 AM PST · 18540 days ago · 12 km deep · 95 km away
54. 2.72 km WSW of San Juan Bautista, CaliforniaTue, Dec 30, 3:04 PM PST · 18540 days ago · 5 km deep · 53 km away
55. 1.622 km NNE of Soledad, CaliforniaTue, Dec 30, 4:36 PM PST · 18540 days ago · 2 km deep · 13 km away
56. 2.216 km E of Tres Pinos, CaliforniaWed, Dec 31, 6:33 AM PST · 18539 days ago · 5 km deep · 26 km away
57. 2.717 km E of Tres Pinos, CaliforniaWed, Dec 31, 6:34 AM PST · 18539 days ago · 6 km deep · 26 km away
58. 1.722 km NW of Parkfield, CaliforniaWed, Dec 31, 7:07 AM PST · 18539 days ago · 3 km deep · 73 km away
59. 3.325 km NW of San Simeon, CaliforniaThu, Jan 1, 12:57 AM PST · 18538 days ago · 6 km deep · 93 km away
60. 3.025 km ENE of Soledad, CaliforniaThu, Jan 1, 6:58 PM PST · 18538 days ago · 10 km deep · 10 km away

The first 60 of 196.

Before

1. 3.930 km NE of Soledad, CaliforniaSat, Dec 20, 7:24 PM PST · 18550 days ago · 6 km deep · 1 km away
2. 1.69 km NE of San Martin, CaliforniaSat, Dec 20, 3:28 PM PST · 18550 days ago · 5 km deep · 77 km away
3. 1.812 km S of Tres Pinos, CaliforniaSat, Dec 20, 8:11 AM PST · 18550 days ago · 5 km deep · 24 km away
4. 2.37 km NNE of San Juan Bautista, CaliforniaSat, Dec 20, 1:33 AM PST · 18550 days ago · 5 km deep · 53 km away
5. 2.35 km WSW of Gilroy, CaliforniaFri, Dec 19, 11:41 PM PST · 18550 days ago · 3 km deep · 66 km away
6. 2.00 km ENE of Del Monte Forest, CaliforniaFri, Dec 19, 9:09 PM PST · 18551 days ago · 3 km deep · 78 km away
7. 2.12 km NNW of Del Monte Forest, CaliforniaFri, Dec 19, 5:01 PM PST · 18551 days ago · 2 km deep · 81 km away
8. 2.12 km SW of Monterey, CaliforniaFri, Dec 19, 11:24 AM PST · 18551 days ago · 10 km deep · 76 km away
9. 2.59 km NE of San Martin, CaliforniaFri, Dec 19, 8:42 AM PST · 18551 days ago · 8 km deep · 75 km away
10. 4.012 km SE of Coalinga, CaliforniaThu, Dec 18, 10:25 PM PST · 18551 days ago · 9 km deep · 92 km away
11. 2.117 km E of Tres Pinos, CaliforniaThu, Dec 18, 10:14 PM PST · 18551 days ago · 6 km deep · 26 km away
12. 1.819 km NW of Parkfield, CaliforniaThu, Dec 18, 8:40 PM PST · 18552 days ago · 4 km deep · 76 km away
13. 3.419 km NW of Parkfield, CaliforniaThu, Dec 18, 6:42 PM PST · 18552 days ago · 4 km deep · 76 km away
14. 4.219 km NW of Parkfield, CaliforniaThu, Dec 18, 5:42 PM PST · 18552 days ago · 5 km deep · 76 km away
15. 2.824 km NE of Soledad, CaliforniaThu, Dec 18, 5:21 AM PST · 18552 days ago · 11 km deep · 6 km away
16. 1.812 km N of Morgan Hill, CaliforniaThu, Dec 18, 1:45 AM PST · 18552 days ago · 6 km deep · 89 km away
17. 2.422 km ENE of Soledad, CaliforniaWed, Dec 17, 9:00 PM PST · 18553 days ago · 3 km deep · 8 km away
18. 1.811 km S of Tres Pinos, CaliforniaTue, Dec 16, 5:33 PM PST · 18554 days ago · 4 km deep · 26 km away
19. 1.58 km SSW of Tres Pinos, CaliforniaTue, Dec 16, 7:37 AM PST · 18554 days ago · 2 km deep · 30 km away
20. 2.324 km NE of Greenfield, CaliforniaTue, Dec 16, 2:37 AM PST · 18554 days ago · 5 km deep · 12 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1028010. Read Sat, Oct 3, 2026, 4:39 PM UTC.