M1.9 earthquake 6 km NE of Ridgemark, California

Magnitude

1.9 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, Dec 2, 1989, 10:26 PM PST

UTC

1989-12-03 06:26:44 UTC

Depth

4.5 km (2.8 mi), shallow

Epicenter

36.853° N, 121.306° 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

±0.12

Depth from

From location

Station coverage gap

88°

Stations used

38

• Ridgemark, CaliforniaPopulation 3,016. Forecast7 kmNE
• Hollister, CaliforniaPopulation 37,462. Forecast9 kmE
• Salinas, CaliforniaPopulation 157,380. Forecast37 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast417 kmNW

After

1. 1.74 km ESE of Interlaken, CaliforniaSun, Dec 3, 1:03 AM PST · 13453 days ago · 10 km deep · 35 km away
2. 1.72 km W of San Juan Bautista, CaliforniaSun, Dec 3, 9:59 AM PST · 13453 days ago · 5 km deep · 24 km away
3. 1.66 km ENE of Corralitos, CaliforniaSun, Dec 3, 10:21 AM PST · 13453 days ago · 9 km deep · 43 km away
4. 1.911 km S of Tres Pinos, CaliforniaSun, Dec 3, 10:29 AM PST · 13453 days ago · 5 km deep · 19 km away
5. 1.51 km NE of Saratoga, CaliforniaSun, Dec 3, 11:43 PM PST · 13452 days ago · 4 km deep · 78 km away
6. 1.61 km NE of Los Gatos, CaliforniaMon, Dec 4, 3:08 AM PST · 13452 days ago · 2 km deep · 72 km away
7. 1.54 km SSW of Lexington Hills, CaliforniaMon, Dec 4, 4:59 AM PST · 13452 days ago · 14 km deep · 68 km away
8. 1.85 km N of Lompico, CaliforniaMon, Dec 4, 5:15 AM PST · 13452 days ago · 15 km deep · 73 km away
9. 1.530 km NE of Soledad, CaliforniaMon, Dec 4, 7:30 AM PST · 13452 days ago · 7 km deep · 38 km away
10. 2.411 km S of Tres Pinos, CaliforniaMon, Dec 4, 8:09 AM PST · 13452 days ago · 5 km deep · 19 km away
11. 1.51 km NE of Corralitos, CaliforniaMon, Dec 4, 11:10 AM PST · 13452 days ago · 16 km deep · 46 km away
12. 1.625 km NE of Greenfield, CaliforniaMon, Dec 4, 1:42 PM PST · 13452 days ago · 7 km deep · 50 km away
13. 1.64 km E of Interlaken, CaliforniaMon, Dec 4, 2:44 PM PST · 13452 days ago · 9 km deep · 36 km away
14. 2.512 km S of Tres Pinos, CaliforniaMon, Dec 4, 6:44 PM PST · 13452 days ago · 5 km deep · 20 km away
15. 1.82 km NW of Lexington Hills, CaliforniaTue, Dec 5, 12:13 AM PST · 13451 days ago · 9 km deep · 71 km away
16. 1.625 km ENE of Greenfield, CaliforniaTue, Dec 5, 2:25 AM PST · 13451 days ago · 0 km deep · 53 km away
17. 2.11 km NW of Lexington Hills, CaliforniaTue, Dec 5, 4:07 AM PST · 13451 days ago · 9 km deep · 70 km away
18. 1.623 km NE of Soledad, CaliforniaTue, Dec 5, 10:02 AM PST · 13451 days ago · 9 km deep · 37 km away
19. 2.73 km NNW of Aromas, CaliforniaTue, Dec 5, 2:00 PM PST · 13451 days ago · 10 km deep · 33 km away
20. 1.63 km N of Aromas, CaliforniaTue, Dec 5, 3:39 PM PST · 13451 days ago · 7 km deep · 31 km away
21. 1.67 km NE of Interlaken, CaliforniaTue, Dec 5, 4:45 PM PST · 13451 days ago · 3 km deep · 35 km away
22. 1.52 km ENE of Corralitos, CaliforniaWed, Dec 6, 2:22 AM PST · 13450 days ago · 14 km deep · 45 km away
23. 1.8Central CaliforniaWed, Dec 6, 2:47 AM PST · 13450 days ago · 1 km deep · 17 km away
24. 1.924 km NE of Greenfield, CaliforniaWed, Dec 6, 5:03 AM PST · 13450 days ago · 5 km deep · 50 km away
25. 1.76 km S of Lexington Hills, CaliforniaWed, Dec 6, 7:41 AM PST · 13450 days ago · 14 km deep · 65 km away
26. 2.12 km SW of Lexington Hills, CaliforniaWed, Dec 6, 8:32 PM PST · 13449 days ago · 11 km deep · 69 km away
27. 2.523 km ENE of San Ardo, CaliforniaWed, Dec 6, 11:24 PM PST · 13449 days ago · 5 km deep · 98 km away
28. 2.02 km S of San Juan Bautista, CaliforniaThu, Dec 7, 1:41 AM PST · 13449 days ago · 4 km deep · 21 km away
29. 1.85 km SSW of Lexington Hills, CaliforniaThu, Dec 7, 11:20 AM PST · 13449 days ago · 16 km deep · 67 km away
30. 2.124 km NE of Greenfield, CaliforniaThu, Dec 7, 6:23 PM PST · 13449 days ago · 7 km deep · 47 km away
31. 1.61 km NE of Interlaken, CaliforniaThu, Dec 7, 7:29 PM PST · 13449 days ago · 14 km deep · 39 km away
32. 1.55 km ESE of Interlaken, CaliforniaThu, Dec 7, 11:00 PM PST · 13448 days ago · 12 km deep · 34 km away
33. 1.68 km WSW of Saratoga, CaliforniaFri, Dec 8, 7:06 AM PST · 13448 days ago · 20 km deep · 82 km away
34. 1.58 km WSW of Davenport, CaliforniaFri, Dec 8, 7:12 AM PST · 13448 days ago · 5 km deep · 87 km away
35. 1.52 km S of Lexington Hills, CaliforniaFri, Dec 8, 9:05 AM PST · 13448 days ago · 9 km deep · 67 km away
36. 1.52 km N of Corralitos, CaliforniaFri, Dec 8, 2:40 PM PST · 13448 days ago · 16 km deep · 48 km away
37. 1.811 km S of Tres Pinos, CaliforniaFri, Dec 8, 4:11 PM PST · 13448 days ago · 5 km deep · 18 km away
38. 1.74 km ENE of Interlaken, CaliforniaFri, Dec 8, 9:12 PM PST · 13447 days ago · 5 km deep · 36 km away
39. 2.26 km S of Loyola, CaliforniaFri, Dec 8, 11:29 PM PST · 13447 days ago · 5 km deep · 86 km away
40. 1.63 km S of Lexington Hills, CaliforniaSat, Dec 9, 7:24 AM PST · 13447 days ago · 14 km deep · 67 km away
41. 2.121 km NE of Soledad, CaliforniaSat, Dec 9, 7:29 AM PST · 13447 days ago · 7 km deep · 32 km away
42. 2.39 km NE of Gilroy, CaliforniaSat, Dec 9, 10:53 AM PST · 13447 days ago · 8 km deep · 28 km away
43. 1.617 km SSE of Tres Pinos, CaliforniaSat, Dec 9, 12:39 PM PST · 13447 days ago · 6 km deep · 24 km away
44. 2.04 km S of Lexington Hills, CaliforniaSat, Dec 9, 5:51 PM PST · 13447 days ago · 13 km deep · 66 km away
45. 2.2Northern CaliforniaSun, Dec 10, 12:01 AM PST · 13446 days ago · 13 km deep · 66 km away
46. 2.67 km NE of Interlaken, CaliforniaSun, Dec 10, 12:42 AM PST · 13446 days ago · 3 km deep · 36 km away
47. 1.73 km SE of Day Valley, CaliforniaSun, Dec 10, 4:25 AM PST · 13446 days ago · 16 km deep · 50 km away
48. 1.69 km SE of Lexington Hills, CaliforniaSun, Dec 10, 6:47 AM PST · 13446 days ago · 4 km deep · 60 km away
49. 1.825 km ESE of Tres Pinos, CaliforniaSun, Dec 10, 9:20 AM PST · 13446 days ago · 12 km deep · 29 km away
50. 1.83 km NNW of Corralitos, CaliforniaSun, Dec 10, 10:18 AM PST · 13446 days ago · 15 km deep · 49 km away
51. 2.322 km ENE of Soledad, CaliforniaSun, Dec 10, 1:38 PM PST · 13446 days ago · 10 km deep · 41 km away
52. 2.27 km ENE of Interlaken, CaliforniaMon, Dec 11, 1:41 AM PST · 13445 days ago · 3 km deep · 34 km away
53. 1.821 km NE of Soledad, CaliforniaMon, Dec 11, 6:31 AM PST · 13445 days ago · 6 km deep · 36 km away
54. 2.58 km SSE of Gilroy, CaliforniaMon, Dec 11, 10:06 AM PST · 13445 days ago · 6 km deep · 22 km away
55. 1.67 km SSE of Gilroy, CaliforniaMon, Dec 11, 10:09 AM PST · 13445 days ago · 4 km deep · 23 km away
56. 1.71 km NE of Interlaken, CaliforniaMon, Dec 11, 11:10 AM PST · 13445 days ago · 13 km deep · 39 km away
57. 1.64 km W of Ridgemark, CaliforniaMon, Dec 11, 12:28 PM PST · 13445 days ago · 11 km deep · 11 km away
58. 2.44 km WSW of Ridgemark, CaliforniaMon, Dec 11, 3:55 PM PST · 13445 days ago · 10 km deep · 11 km away
59. 2.224 km ENE of Greenfield, CaliforniaMon, Dec 11, 6:02 PM PST · 13445 days ago · 5 km deep · 52 km away
60. 3.62 km SSW of Lexington Hills, CaliforniaMon, Dec 11, 7:52 PM PST · 13444 days ago · 13 km deep · 68 km away

The first 60 of 191.

Before

1. 2.233 km SW of South Dos Palos, CaliforniaSat, Dec 2, 8:09 PM PST · 13453 days ago · 3 km deep · 36 km away
2. 1.6Central CaliforniaSat, Dec 2, 1:37 PM PST · 13454 days ago · 3 km deep · 21 km away
3. 3.92 km S of Saratoga, CaliforniaSat, Dec 2, 12:02 PM PST · 13454 days ago · 10 km deep · 77 km away
4. 1.811 km S of Tres Pinos, CaliforniaSat, Dec 2, 11:30 AM PST · 13454 days ago · 4 km deep · 18 km away
5. 2.216 km SSE of Tres Pinos, CaliforniaSat, Dec 2, 10:13 AM PST · 13454 days ago · 6 km deep · 23 km away
6. 2.816 km SSE of Tres Pinos, CaliforniaSat, Dec 2, 10:00 AM PST · 13454 days ago · 5 km deep · 23 km away
7. 1.86 km E of Zayante, CaliforniaSat, Dec 2, 4:37 AM PST · 13454 days ago · 17 km deep · 65 km away
8. 1.84 km S of Lexington Hills, CaliforniaSat, Dec 2, 2:02 AM PST · 13454 days ago · 13 km deep · 66 km away
9. 1.811 km S of Tres Pinos, CaliforniaSat, Dec 2, 12:56 AM PST · 13454 days ago · 4 km deep · 18 km away
10. 1.711 km S of Tres Pinos, CaliforniaFri, Dec 1, 9:54 PM PST · 13454 days ago · 6 km deep · 19 km away
11. 1.74 km NNE of San Juan Bautista, CaliforniaFri, Dec 1, 5:03 PM PST · 13455 days ago · 6 km deep · 19 km away
12. 1.821 km NE of Soledad, CaliforniaFri, Dec 1, 3:45 PM PST · 13455 days ago · 7 km deep · 36 km away
13. 1.825 km SE of Big Sur, CaliforniaFri, Dec 1, 1:35 PM PST · 13455 days ago · 8 km deep · 88 km away
14. 2.310 km S of Tres Pinos, CaliforniaFri, Dec 1, 10:37 AM PST · 13455 days ago · 4 km deep · 18 km away
15. 1.510 km S of Tres Pinos, CaliforniaFri, Dec 1, 9:39 AM PST · 13455 days ago · 4 km deep · 18 km away
16. 1.811 km S of Tres Pinos, CaliforniaFri, Dec 1, 6:27 AM PST · 13455 days ago · 4 km deep · 18 km away
17. 2.710 km S of Tres Pinos, CaliforniaFri, Dec 1, 6:06 AM PST · 13455 days ago · 4 km deep · 18 km away
18. 1.710 km S of Tres Pinos, CaliforniaFri, Dec 1, 5:33 AM PST · 13455 days ago · 5 km deep · 18 km away
19. 2.5Central CaliforniaFri, Dec 1, 5:07 AM PST · 13455 days ago · 4 km deep · 18 km away
20. 2.9Central CaliforniaFri, Dec 1, 5:06 AM PST · 13455 days ago · 5 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc148423. Read Sat, Oct 3, 2026, 3:17 PM UTC.