M1.8 earthquake 23 km WNW of Three Rocks, California

Magnitude

1.8 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Thu, Mar 21, 2002, 6:40 PM PST

UTC

2002-03-22 02:40:15 UTC

Depth

14.9 km (9.3 mi), shallow

Epicenter

36.610° N, 120.620° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 1.0 km in depth

Magnitude uncertainty

±0.13

Depth from

From location

Station coverage gap

103°

Stations used

14

• Mendota, CaliforniaPopulation 11,430. Forecast27 kmSW
• Fresno, CaliforniaPopulation 542,107. Forecast77 kmW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast357 kmNW

After

1. 1.519 km NW of Parkfield, CaliforniaFri, Mar 22, 1:24 AM PST · 8963 days ago · 4 km deep · 65 km away
2. 1.62 km WSW of San Juan Bautista, CaliforniaFri, Mar 22, 2:20 AM PST · 8963 days ago · 4 km deep · 88 km away
3. 2.315 km SSW of Fairmead, CaliforniaFri, Mar 22, 5:44 PM PST · 8962 days ago · 10 km deep · 49 km away
4. 2.09 km S of Tres Pinos, CaliforniaSat, Mar 23, 4:16 AM PST · 8962 days ago · 2 km deep · 65 km away
5. 1.915 km S of Cantua Creek, CaliforniaSat, Mar 23, 12:58 PM PST · 8961 days ago · 4 km deep · 39 km away
6. 1.61 km W of Tres Pinos, CaliforniaSun, Mar 24, 3:47 AM PST · 8961 days ago · 5 km deep · 67 km away
7. 1.68 km SSE of San Juan Bautista, CaliforniaSun, Mar 24, 12:49 PM PST · 8960 days ago · 8 km deep · 81 km away
8. 2.88 km SSE of San Juan Bautista, CaliforniaSun, Mar 24, 1:12 PM PST · 8960 days ago · 9 km deep · 81 km away
9. 2.427 km NE of Soledad, CaliforniaWed, Mar 27, 12:47 AM PST · 8958 days ago · 10 km deep · 43 km away
10. 1.717 km SSE of Tres Pinos, CaliforniaWed, Mar 27, 4:57 AM PST · 8958 days ago · 6 km deep · 57 km away
11. 1.74 km WNW of San Juan Bautista, CaliforniaWed, Mar 27, 6:49 AM PST · 8958 days ago · 6 km deep · 90 km away
12. 1.720 km NE of San Ardo, CaliforniaWed, Mar 27, 7:37 AM PST · 8958 days ago · 9 km deep · 52 km away
13. 1.88 km NE of San Martin, CaliforniaWed, Mar 27, 2:26 PM PST · 8957 days ago · 8 km deep · 99 km away
14. 2.22 km SSW of San Juan Bautista, CaliforniaWed, Mar 27, 4:04 PM PST · 8957 days ago · 6 km deep · 86 km away
15. 1.55 km SSW of Gilroy, CaliforniaThu, Mar 28, 7:15 AM PST · 8957 days ago · 4 km deep · 95 km away
16. 1.62 km SSW of San Juan Bautista, CaliforniaThu, Mar 28, 11:31 AM PST · 8957 days ago · 6 km deep · 86 km away
17. 1.624 km WSW of Coalinga, CaliforniaThu, Mar 28, 5:38 PM PST · 8956 days ago · 5 km deep · 60 km away
18. 2.023 km NE of King City, CaliforniaFri, Mar 29, 3:45 AM PST · 8956 days ago · 8 km deep · 40 km away
19. 2.024 km NE of Greenfield, CaliforniaFri, Mar 29, 10:40 AM PST · 8956 days ago · 6 km deep · 42 km away
20. 2.46 km WNW of Lemoore, CaliforniaSat, Mar 30, 3:30 AM PST · 8955 days ago · 0 km deep · 75 km away
21. 1.925 km NE of Greenfield, CaliforniaSun, Mar 31, 7:33 AM PST · 8954 days ago · 2 km deep · 39 km away
22. 2.512 km NNW of Coalinga, CaliforniaSun, Mar 31, 6:23 PM PST · 8953 days ago · 12 km deep · 45 km away
23. 2.222 km NNE of Soledad, CaliforniaSun, Mar 31, 6:28 PM PST · 8953 days ago · 6 km deep · 51 km away
24. 1.713 km NW of Coalinga, CaliforniaMon, Apr 1, 8:44 AM PST · 8953 days ago · 8 km deep · 46 km away
25. 1.626 km ENE of Greenfield, CaliforniaTue, Apr 2, 4:08 AM PST · 8952 days ago · -1 km deep · 38 km away
26. 2.229 km WNW of Three Rocks, CaliforniaWed, Apr 3, 2:33 AM PST · 8951 days ago · 13 km deep · 11 km away
27. 2.27 km SSE of Parkfield, CaliforniaWed, Apr 3, 12:52 PM PST · 8950 days ago · 9 km deep · 88 km away
28. 1.9Central CaliforniaWed, Apr 3, 6:02 PM PST · 8950 days ago · 5 km deep · 85 km away
29. 1.918 km W of Three Rocks, CaliforniaWed, Apr 3, 11:12 PM PST · 8950 days ago · 15 km deep · 14 km away
30. 2.58 km NE of Gilroy, CaliforniaThu, Apr 4, 6:34 AM PST · 8950 days ago · 4 km deep · 93 km away
31. 1.622 km NW of Parkfield, CaliforniaThu, Apr 4, 11:27 AM PST · 8950 days ago · 16 km deep · 63 km away
32. 1.73 km WSW of San Juan Bautista, CaliforniaThu, Apr 4, 8:49 PM PST · 8949 days ago · 8 km deep · 88 km away
33. 1.920 km NNE of King City, CaliforniaFri, Apr 5, 8:34 AM PST · 8949 days ago · 1 km deep · 43 km away
34. 1.922 km ENE of San Lucas, CaliforniaFri, Apr 5, 12:16 PM PST · 8948 days ago · 8 km deep · 47 km away
35. 1.68 km ESE of Kettleman City, CaliforniaSat, Apr 6, 4:57 AM PST · 8948 days ago · 4 km deep · 96 km away
36. 1.99 km NW of Kettleman City, CaliforniaMon, Apr 8, 9:10 AM PDT · 8946 days ago · 19 km deep · 79 km away
37. 1.6Near the coast of Central CaliforniaMon, Apr 8, 9:25 AM PDT · 8946 days ago · 6 km deep · 99 km away
38. 2.48 km SSE of San Juan Bautista, CaliforniaMon, Apr 8, 8:58 PM PDT · 8945 days ago · 8 km deep · 80 km away
39. 1.510 km S of Tres Pinos, CaliforniaTue, Apr 9, 3:31 AM PDT · 8945 days ago · 3 km deep · 63 km away
40. 1.615 km NW of Parkfield, CaliforniaWed, Apr 10, 10:25 AM PDT · 8944 days ago · 3 km deep · 68 km away
41. 1.72 km W of Gilroy, CaliforniaWed, Apr 10, 11:47 AM PDT · 8944 days ago · 0 km deep · 97 km away
42. 1.78 km NNE of Coalinga, CaliforniaThu, Apr 11, 1:32 PM PDT · 8942 days ago · 0 km deep · 53 km away
43. 2.012 km SSE of Tres Pinos, CaliforniaFri, Apr 12, 12:49 AM PDT · 8942 days ago · 5 km deep · 59 km away
44. 1.812 km SSE of Tres Pinos, CaliforniaFri, Apr 12, 12:50 AM PDT · 8942 days ago · 5 km deep · 59 km away
45. 2.65 km W of Yosemite Lakes, CaliforniaFri, Apr 12, 3:39 AM PDT · 8942 days ago · 22 km deep · 95 km away
46. 2.09 km SW of Ridgemark, CaliforniaFri, Apr 12, 6:21 PM PDT · 8941 days ago · 6 km deep · 74 km away
47. 2.19 km SW of Ridgemark, CaliforniaFri, Apr 12, 7:19 PM PDT · 8941 days ago · 6 km deep · 74 km away
48. 1.623 km ENE of Soledad, CaliforniaSat, Apr 13, 5:20 AM PDT · 8941 days ago · 5 km deep · 44 km away
49. 2.515 km SSE of Tres Pinos, CaliforniaSat, Apr 13, 11:21 AM PDT · 8941 days ago · 6 km deep · 59 km away
50. 2.215 km SSE of Tres Pinos, CaliforniaSat, Apr 13, 2:45 PM PDT · 8940 days ago · 7 km deep · 59 km away
51. 1.65 km W of San Ardo, CaliforniaSat, Apr 13, 3:32 PM PDT · 8940 days ago · 8 km deep · 73 km away
52. 2.05 km W of San Ardo, CaliforniaSat, Apr 13, 3:33 PM PDT · 8940 days ago · 10 km deep · 73 km away
53. 1.613 km SSE of Tres Pinos, CaliforniaMon, Apr 15, 3:22 PM PDT · 8938 days ago · 5 km deep · 58 km away
54. 2.516 km SSE of Tres Pinos, CaliforniaWed, Apr 17, 4:31 AM PDT · 8937 days ago · 6 km deep · 58 km away
55. 1.713 km S of Tres Pinos, CaliforniaWed, Apr 17, 5:41 AM PDT · 8937 days ago · 4 km deep · 61 km away
56. 2.316 km SSE of Tres Pinos, CaliforniaWed, Apr 17, 5:43 AM PDT · 8937 days ago · 6 km deep · 58 km away
57. 2.116 km SSE of Tres Pinos, CaliforniaWed, Apr 17, 5:46 AM PDT · 8937 days ago · 6 km deep · 58 km away
58. 1.616 km SSE of Tres Pinos, CaliforniaWed, Apr 17, 5:47 AM PDT · 8937 days ago · 6 km deep · 58 km away
59. 1.624 km NNE of King City, CaliforniaWed, Apr 17, 7:22 AM PDT · 8937 days ago · 5 km deep · 40 km away
60. 2.61 km SW of Cantua Creek, CaliforniaWed, Apr 17, 1:50 PM PDT · 8936 days ago · 4 km deep · 29 km away

The first 60 of 166.

Before

1. 2.019 km SSE of Tres Pinos, CaliforniaThu, Mar 21, 5:48 PM PST · 8963 days ago · 4 km deep · 54 km away
2. 1.810 km ESE of Gilroy, CaliforniaThu, Mar 21, 11:03 AM PST · 8964 days ago · 3 km deep · 84 km away
3. 2.123 km ENE of Soledad, CaliforniaWed, Mar 20, 10:40 PM PST · 8964 days ago · 5 km deep · 44 km away
4. 2.55 km ESE of Aromas, CaliforniaWed, Mar 20, 9:29 PM PST · 8964 days ago · 6 km deep · 91 km away
5. 2.15 km ESE of Aromas, CaliforniaWed, Mar 20, 8:34 PM PST · 8964 days ago · 6 km deep · 91 km away
6. 1.618 km SSE of Tres Pinos, CaliforniaWed, Mar 20, 8:05 PM PST · 8964 days ago · 5 km deep · 56 km away
7. 1.622 km ENE of Soledad, CaliforniaWed, Mar 20, 5:18 PM PST · 8964 days ago · 5 km deep · 44 km away
8. 2.822 km ENE of Soledad, CaliforniaWed, Mar 20, 5:17 PM PST · 8964 days ago · 5 km deep · 44 km away
9. 1.68 km ENE of San Martin, CaliforniaWed, Mar 20, 1:29 PM PST · 8964 days ago · 8 km deep · 99 km away
10. 2.18 km ENE of San Martin, CaliforniaWed, Mar 20, 1:14 PM PST · 8964 days ago · 8 km deep · 99 km away
11. 2.325 km SE of Tres Pinos, CaliforniaTue, Mar 19, 8:06 PM PST · 8965 days ago · 12 km deep · 43 km away
12. 1.624 km NE of Greenfield, CaliforniaTue, Mar 19, 1:44 PM PST · 8965 days ago · 7 km deep · 41 km away
13. 1.95 km ENE of Coalinga, CaliforniaTue, Mar 19, 2:18 AM PST · 8966 days ago · 12 km deep · 58 km away
14. 1.99 km E of Gilroy, CaliforniaSun, Mar 17, 6:16 AM PST · 8968 days ago · 7 km deep · 87 km away
15. 1.93 km ENE of Avenal, CaliforniaSun, Mar 17, 1:16 AM PST · 8968 days ago · 20 km deep · 81 km away
16. 1.84 km E of Avenal, CaliforniaSun, Mar 17, 1:09 AM PST · 8968 days ago · 19 km deep · 83 km away
17. 1.93 km NE of Avenal, CaliforniaSun, Mar 17, 1:08 AM PST · 8968 days ago · 22 km deep · 80 km away
18. 2.39 km E of Gilroy, CaliforniaSat, Mar 16, 11:09 PM PST · 8968 days ago · 8 km deep · 87 km away
19. 1.95 km NW of Soledad, CaliforniaSat, Mar 16, 11:05 PM PST · 8968 days ago · 23 km deep · 69 km away
20. 1.69 km E of Gilroy, CaliforniaSat, Mar 16, 11:01 PM PST · 8968 days ago · 8 km deep · 87 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc21218057. Read Mon, Oct 5, 2026, 7:40 AM UTC.