M2.1 earthquake 11km SW of Ridgemark, CA

Magnitude

2.1 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, Dec 3, 2020, 9:50 PM PST

UTC

2020-12-04 05:50:52 UTC

Depth

6.9 km (4.3 mi), shallow

Epicenter

36.746° N, 121.451° 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

±0.21

Depth from

From location

Station coverage gap

52°

Stations used

60

• Ridgemark, CaliforniaPopulation 3,016. Forecast11 kmSW
• Hollister, CaliforniaPopulation 37,462. Forecast13 kmSSW
• Salinas, CaliforniaPopulation 157,380. Forecast20 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast417 kmNW

After

1. 1.611km SW of Ridgemark, CAFri, Dec 4, 9:45 AM PST · 2130 days ago · 7 km deep · 1 km away
2. 1.62km NNE of Pinnacles, CASat, Dec 5, 12:47 PM PST · 2128 days ago · 9 km deep · 36 km away
3. 1.715km SE of Pinnacles, CASun, Dec 6, 8:16 PM PST · 2127 days ago · -1 km deep · 52 km away
4. 1.64km N of Pinnacles, CAMon, Dec 7, 8:33 AM PST · 2127 days ago · 4 km deep · 34 km away
5. 1.62km NE of Pinnacles, CAMon, Dec 7, 12:19 PM PST · 2126 days ago · 7 km deep · 37 km away
6. 1.94km ENE of Tres Pinos, CAMon, Dec 7, 3:20 PM PST · 2126 days ago · 10 km deep · 16 km away
7. 1.59km SSW of Tres Pinos, CATue, Dec 8, 5:54 PM PST · 2125 days ago · 3 km deep · 8 km away
8. 1.713km S of Tres Pinos, CAWed, Dec 9, 2:25 AM PST · 2125 days ago · 4 km deep · 14 km away · felt by 1
9. 1.77km N of Pinnacles, CAWed, Dec 9, 5:32 AM PST · 2125 days ago · 7 km deep · 33 km away
10. 2.216km SE of Tres Pinos, CAWed, Dec 9, 9:23 PM PST · 2124 days ago · 15 km deep · 23 km away
11. 2.25km SSW of San Ardo, CAFri, Dec 11, 3:16 PM PST · 2122 days ago · 11 km deep · 97 km away
12. 1.616km SSE of Tres Pinos, CASat, Dec 12, 3:37 PM PST · 2121 days ago · 8 km deep · 19 km away
13. 1.914km N of Lopez Point, CASun, Dec 13, 7:57 AM PST · 2121 days ago · 15 km deep · 69 km away
14. 3.710km ENE of Morgan Hill, CATue, Dec 15, 6:58 AM PST · 2119 days ago · 4 km deep · 47 km away · felt by 2,305
15. 3.510km ENE of Morgan Hill, CATue, Dec 15, 6:59 AM PST · 2119 days ago · 4 km deep · 47 km away · felt by 597
16. 1.520km NE of San Lucas, CATue, Dec 15, 6:30 PM PST · 2118 days ago · 7 km deep · 75 km away
17. 2.121km NE of San Lucas, CATue, Dec 15, 10:57 PM PST · 2118 days ago · 7 km deep · 76 km away
18. 1.710km SSW of Tres Pinos, CAFri, Dec 18, 3:46 PM PST · 2115 days ago · 5 km deep · 11 km away
19. 2.510km NW of Pinnacles, CAFri, Dec 18, 3:50 PM PST · 2115 days ago · 5 km deep · 26 km away · felt by 7
20. 1.913km S of Tres Pinos, CAFri, Dec 18, 6:32 PM PST · 2115 days ago · 5 km deep · 15 km away
21. 1.74km NNW of Pinnacles, CASat, Dec 19, 12:05 AM PST · 2115 days ago · 7 km deep · 33 km away
22. 2.923km NNE of San Ardo, CASat, Dec 19, 10:40 AM PST · 2114 days ago · 8 km deep · 86 km away · felt by 6
23. 1.68km N of Pinnacles, CASat, Dec 19, 1:16 PM PST · 2114 days ago · 7 km deep · 33 km away
24. 2.511km NW of Pinnacles, CASat, Dec 19, 5:25 PM PST · 2114 days ago · 6 km deep · 25 km away · felt by 3
25. 2.36km SSW of Gilroy, CASun, Dec 20, 7:33 PM PST · 2113 days ago · 3 km deep · 27 km away · felt by 13
26. 1.77km N of Day Valley, CAMon, Dec 21, 12:15 AM PST · 2113 days ago · 3 km deep · 53 km away · felt by 1
27. 1.69km NE of Milpitas, CAMon, Dec 21, 5:12 PM PST · 2112 days ago · 8 km deep · 88 km away
28. 1.713km SE of Pinnacles, CATue, Dec 22, 4:58 AM PST · 2112 days ago · 7 km deep · 49 km away
29. 2.73km W of San Juan Bautista, CAWed, Dec 23, 4:22 PM PST · 2110 days ago · 4 km deep · 15 km away · felt by 28
30. 2.320km N of New Idria, CAWed, Dec 23, 8:41 PM PST · 2110 days ago · 11 km deep · 68 km away
31. 2.17km SE of Pinnacles, CAThu, Dec 24, 5:26 AM PST · 2110 days ago · 7 km deep · 43 km away
32. 1.710km NNE of San Martin, CAThu, Dec 24, 7:18 PM PST · 2109 days ago · 4 km deep · 47 km away
33. 1.58km ENE of Alum Rock, CAFri, Dec 25, 4:24 AM PST · 2109 days ago · 7 km deep · 76 km away
34. 1.82km ESE of Aromas, CAFri, Dec 25, 10:11 AM PST · 2109 days ago · 8 km deep · 21 km away
35. 1.911km SSE of San Juan Bautista, CAFri, Dec 25, 1:58 PM PST · 2108 days ago · 7 km deep · 3 km away
36. 2.616km E of Seven Trees, CASat, Dec 26, 2:57 AM PST · 2108 days ago · 6 km deep · 63 km away · felt by 22
37. 1.912km SE of Pinnacles, CASat, Dec 26, 7:58 PM PST · 2107 days ago · 7 km deep · 48 km away
38. 3.23km W of San Juan Bautista, CASun, Dec 27, 11:05 AM PST · 2106 days ago · 4 km deep · 16 km away · felt by 88
39. 1.82km S of Los Altos Hills, CASun, Dec 27, 11:21 AM PST · 2106 days ago · 5 km deep · 92 km away · felt by 5
40. 2.116km NW of Pinnacles, CASun, Dec 27, 2:37 PM PST · 2106 days ago · 3 km deep · 21 km away
41. 1.813km S of Tres Pinos, CAMon, Dec 28, 12:12 PM PST · 2105 days ago · 2 km deep · 16 km away
42. 2.710km NW of Pinnacles, CATue, Dec 29, 4:14 PM PST · 2104 days ago · 6 km deep · 27 km away · felt by 1
43. 1.910km NW of Pinnacles, CATue, Dec 29, 4:31 PM PST · 2104 days ago · 6 km deep · 27 km away
44. 1.623km NNE of San Lucas, CATue, Dec 29, 5:03 PM PST · 2104 days ago · 10 km deep · 69 km away
45. 2.83km S of Los Altos Hills, CATue, Dec 29, 8:26 PM PST · 2104 days ago · 6 km deep · 91 km away · felt by 403
46. 3.110km NW of Pinnacles, CAWed, Dec 30, 12:30 AM PST · 2104 days ago · 6 km deep · 27 km away · felt by 35
47. 2.610km NW of Pinnacles, CAWed, Dec 30, 12:44 AM PST · 2104 days ago · 6 km deep · 27 km away · felt by 5
48. 2.49km NNW of Pinnacles, CAWed, Dec 30, 12:45 AM PST · 2104 days ago · 5 km deep · 27 km away
49. 2.12km SSW of Los Altos Hills, CAWed, Dec 30, 8:48 AM PST · 2104 days ago · 5 km deep · 92 km away · felt by 13
50. 2.04km NE of Tres Pinos, CAWed, Dec 30, 12:59 PM PST · 2103 days ago · 7 km deep · 17 km away
51. 2.014km SE of Livermore, CAWed, Dec 30, 6:53 PM PST · 2103 days ago · 4 km deep · 95 km away · felt by 2
52. 1.910km SW of Tres Pinos, CAFri, Jan 1, 6:46 AM PST · 2102 days ago · 1 km deep · 5 km away
53. 1.616km NW of Pinnacles, CAFri, Jan 1, 11:02 AM PST · 2101 days ago · 3 km deep · 21 km away
54. 2.216km SSE of Tres Pinos, CAFri, Jan 1, 11:52 AM PST · 2101 days ago · 2 km deep · 19 km away
55. 1.96km NE of Aromas, CAFri, Jan 1, 8:26 PM PST · 2101 days ago · 5 km deep · 25 km away · felt by 1
56. 2.19km ENE of Milpitas, CASat, Jan 2, 5:44 AM PST · 2101 days ago · 6 km deep · 85 km away · felt by 2
57. 3.111km NW of Pinnacles, CASat, Jan 2, 6:36 AM PST · 2101 days ago · 6 km deep · 26 km away · felt by 33
58. 4.310km NW of Pinnacles, CASat, Jan 2, 6:42 AM PST · 2101 days ago · 6 km deep · 26 km away · felt by 2,139 · tsunami flag
59. 1.711km NW of Pinnacles, CASat, Jan 2, 6:48 AM PST · 2101 days ago · 6 km deep · 26 km away · felt by 6
60. 2.410km NW of Pinnacles, CASat, Jan 2, 7:02 AM PST · 2101 days ago · 5 km deep · 26 km away · felt by 13

The first 60 of 152.

Before

1. 3.211km SW of Ridgemark, CAThu, Dec 3, 7:18 PM PST · 2130 days ago · 8 km deep · 1 km away · felt by 52
2. 1.68km ENE of Alum Rock, CAThu, Dec 3, 12:58 PM PST · 2130 days ago · 7 km deep · 77 km away
3. 2.34km SW of Moss Landing, CAMon, Nov 30, 11:42 PM PST · 2133 days ago · 8 km deep · 33 km away · felt by 4
4. 1.912km S of Tres Pinos, CAMon, Nov 30, 3:03 PM PST · 2133 days ago · 4 km deep · 14 km away
5. 1.98km SSE of San Juan Bautista, CAMon, Nov 30, 2:13 PM PST · 2133 days ago · 8 km deep · 6 km away
6. 2.317km NNE of New Idria, CAMon, Nov 30, 6:49 AM PST · 2134 days ago · 16 km deep · 80 km away
7. 1.76km SSW of Gilroy, CASun, Nov 29, 4:57 AM PST · 2135 days ago · 7 km deep · 27 km away
8. 1.920km NNW of New Idria, CASun, Nov 29, 3:03 AM PST · 2135 days ago · 11 km deep · 66 km away
9. 1.59km E of Pinnacles, CASat, Nov 28, 1:53 PM PST · 2135 days ago · 9 km deep · 43 km away
10. 2.414km S of Tres Pinos, CAThu, Nov 26, 8:59 PM PST · 2137 days ago · 7 km deep · 17 km away · felt by 2
11. 2.214km NNW of Pinnacles, CAThu, Nov 26, 4:22 AM PST · 2138 days ago · 7 km deep · 24 km away
12. 1.77km SW of Tres Pinos, CAThu, Nov 26, 12:45 AM PST · 2138 days ago · 10 km deep · 8 km away
13. 1.816km SSE of Tres Pinos, CAWed, Nov 25, 5:39 AM PST · 2139 days ago · 6 km deep · 19 km away
14. 2.211km NE of Milpitas, CATue, Nov 24, 5:28 AM PST · 2140 days ago · 5 km deep · 90 km away
15. 2.13km SW of San Juan Bautista, CAMon, Nov 23, 1:22 PM PST · 2140 days ago · 6 km deep · 14 km away
16. 1.733km SSW of South Dos Palos, CASun, Nov 22, 1:37 PM PST · 2141 days ago · 8 km deep · 55 km away
17. 1.52km ENE of Pinnacles, CASun, Nov 22, 9:49 AM PST · 2142 days ago · 3 km deep · 37 km away
18. 1.92km ENE of Pinnacles, CAThu, Nov 19, 9:07 PM PST · 2144 days ago · 3 km deep · 37 km away
19. 1.84km S of San Juan Bautista, CAThu, Nov 19, 12:23 PM PST · 2144 days ago · 6 km deep · 10 km away
20. 1.510km SSE of Sunol, CAThu, Nov 19, 6:19 AM PST · 2145 days ago · 6 km deep · 93 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc73492935. Read Sun, Oct 4, 2026, 5:54 AM UTC.