M1.7 earthquake 2 km ESE of Pittsburg, California

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, Nov 21, 1982, 3:53 AM PST

UTC

1982-11-21 11:53:59 UTC

Depth

15.9 km (9.9 mi), shallow

Epicenter

38.023° N, 121.863° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.6 km in depth

Magnitude uncertainty

±0.31

Depth from

From location

Station coverage gap

105°

Stations used

22

• Pittsburg, CaliforniaPopulation 69,424. Forecast2 kmESE
• Antioch, CaliforniaPopulation 110,542. Forecast5 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast548 kmNW

After

1. 1.67 km ESE of Santa Rosa, CaliforniaSun, Nov 21, 11:55 PM PST · 16021 days ago · 8 km deep · 81 km away
2. 1.52 km SW of Dublin, CaliforniaMon, Nov 22, 4:28 AM PST · 16021 days ago · 9 km deep · 38 km away
3. 2.25 km ESE of Santa Rosa, CaliforniaWed, Nov 24, 11:45 PM PST · 16018 days ago · 7 km deep · 82 km away
4. 1.917 km NE of East Foothills, CaliforniaThu, Nov 25, 10:21 PM PST · 16017 days ago · 7 km deep · 59 km away
5. 3.33 km N of Green Valley, CaliforniaFri, Nov 26, 1:29 AM PST · 16017 days ago · 10 km deep · 39 km away
6. 2.42 km N of Green Valley, CaliforniaFri, Nov 26, 2:01 AM PST · 16017 days ago · 8 km deep · 39 km away
7. 1.92 km WSW of Green Valley, CaliforniaFri, Nov 26, 10:15 AM PST · 16017 days ago · 12 km deep · 37 km away
8. 2.222 km SE of Livermore, CaliforniaMon, Nov 29, 2:23 AM PST · 16014 days ago · 5 km deep · 58 km away
9. 2.021 km SE of Livermore, CaliforniaMon, Nov 29, 2:25 AM PST · 16014 days ago · 4 km deep · 58 km away
10. 1.61 km NNW of Diablo, CaliforniaMon, Nov 29, 7:59 AM PST · 16014 days ago · 8 km deep · 21 km away
11. 1.712 km NNE of Angwin, CaliforniaTue, Nov 30, 9:38 AM PST · 16013 days ago · 5 km deep · 88 km away
12. 1.67 km NNE of Pleasanton, CaliforniaWed, Dec 1, 12:24 AM PST · 16012 days ago · 9 km deep · 33 km away
13. 2.09 km NE of Milpitas, CaliforniaWed, Dec 1, 1:27 PM PST · 16011 days ago · 7 km deep · 61 km away
14. 2.5Northern CaliforniaThu, Dec 2, 5:26 AM PST · 16011 days ago · 6 km deep · 57 km away
15. 1.69 km ESE of East Foothills, CaliforniaThu, Dec 2, 11:57 PM PST · 16010 days ago · 8 km deep · 75 km away
16. 1.69 km ESE of East Foothills, CaliforniaFri, Dec 3, 12:01 AM PST · 16010 days ago · 8 km deep · 75 km away
17. 1.65 km ESE of Sunol, CaliforniaSat, Dec 4, 12:46 AM PST · 16009 days ago · 10 km deep · 49 km away
18. 2.87 km W of Brentwood, CaliforniaSun, Dec 5, 12:49 PM PST · 16007 days ago · 14 km deep · 12 km away
19. 1.65 km N of Pittsburg, CaliforniaSun, Dec 5, 12:51 PM PST · 16007 days ago · 19 km deep · 6 km away
20. 1.610 km WSW of Brentwood, CaliforniaSun, Dec 5, 4:45 PM PST · 16007 days ago · 8 km deep · 13 km away
21. 2.31 km SSW of Fairview, CaliforniaTue, Dec 7, 12:35 PM PST · 16005 days ago · 8 km deep · 43 km away
22. 2.49 km NNE of San Martin, CaliforniaFri, Dec 10, 7:48 PM PST · 16002 days ago · 6 km deep · 100 km away
23. 1.61 km S of Communications Hill, CaliforniaFri, Dec 10, 10:49 PM PST · 16002 days ago · 4 km deep · 84 km away
24. 2.25 km NNW of Pittsburg, CaliforniaSat, Dec 11, 1:29 PM PST · 16001 days ago · 17 km deep · 6 km away
25. 1.74 km S of Fairview, CaliforniaSat, Dec 11, 5:19 PM PST · 16001 days ago · 4 km deep · 45 km away
26. 2.218 km NE of East Foothills, CaliforniaSat, Dec 11, 7:33 PM PST · 16001 days ago · 6 km deep · 58 km away
27. 2.016 km E of Seven Trees, CaliforniaMon, Dec 13, 10:24 AM PST · 16000 days ago · 7 km deep · 84 km away
28. 1.921 km SE of Livermore, CaliforniaSun, Dec 19, 3:31 AM PST · 15994 days ago · 8 km deep · 58 km away
29. 1.71 km NE of Pleasant Hill, CaliforniaSun, Dec 19, 11:35 AM PST · 15993 days ago · 9 km deep · 18 km away
30. 1.613 km S of Mountain House, CaliforniaSun, Dec 19, 2:55 PM PST · 15993 days ago · 0 km deep · 49 km away
31. 1.53 km SSE of Rocklin, CaliforniaThu, Dec 23, 1:34 PM PST · 15989 days ago · 11 km deep · 99 km away
32. 1.93 km SE of Piedmont, CaliforniaFri, Dec 24, 4:33 AM PST · 15989 days ago · 9 km deep · 38 km away
33. 1.511 km ESE of Hidden Valley Lake, CaliforniaSun, Dec 26, 12:02 PM PST · 15986 days ago · 2 km deep · 96 km away
34. 2.48 km ESE of East Foothills, CaliforniaTue, Dec 28, 4:12 PM PST · 15984 days ago · 6 km deep · 75 km away
35. 2.24 km NNW of Benicia, CaliforniaWed, Dec 29, 9:14 AM PST · 15984 days ago · 7 km deep · 28 km away
36. 1.81 km E of Union City, CaliforniaWed, Dec 29, 10:07 PM PST · 15983 days ago · 7 km deep · 49 km away
37. 1.81 km E of Deer Park, CaliforniaThu, Dec 30, 12:42 AM PST · 15983 days ago · 11 km deep · 77 km away
38. 2.43 km SSE of Rocklin, CaliforniaThu, Dec 30, 2:57 AM PST · 15983 days ago · 8 km deep · 100 km away
39. 1.74 km SSE of Fairview, CaliforniaFri, Dec 31, 6:20 AM PST · 15982 days ago · 7 km deep · 45 km away
40. 1.91 km ENE of Piedmont, CaliforniaSat, Jan 1, 12:34 PM PST · 15980 days ago · 7 km deep · 37 km away
41. 1.612 km NNW of Moskowite Corner, CaliforniaSun, Jan 2, 12:02 AM PST · 15980 days ago · 2 km deep · 67 km away
42. 1.610 km SW of Brentwood, CaliforniaTue, Jan 4, 6:15 PM PST · 15977 days ago · 16 km deep · 21 km away
43. 1.89 km N of Moskowite Corner, CaliforniaWed, Jan 5, 12:33 AM PST · 15977 days ago · 10 km deep · 64 km away
44. 1.713 km NNW of Moskowite Corner, CaliforniaWed, Jan 5, 8:53 AM PST · 15977 days ago · 3 km deep · 68 km away
45. 1.77 km NW of Moskowite Corner, CaliforniaWed, Jan 5, 10:17 AM PST · 15977 days ago · 2 km deep · 63 km away
46. 2.53 km NNE of Dixon, CaliforniaWed, Jan 5, 11:04 AM PST · 15976 days ago · 30 km deep · 50 km away
47. 2.96 km NE of East Foothills, CaliforniaThu, Jan 6, 7:00 PM PST · 15975 days ago · 9 km deep · 68 km away
48. 1.53 km NNE of Bay Point, CaliforniaSat, Jan 8, 4:36 AM PST · 15974 days ago · 19 km deep · 8 km away
49. 2.27 km WSW of Moskowite Corner, CaliforniaSat, Jan 8, 8:00 AM PST · 15974 days ago · 13 km deep · 57 km away
50. 2.56 km ENE of East Foothills, CaliforniaSun, Jan 9, 5:10 AM PST · 15973 days ago · 7 km deep · 69 km away
51. 1.812 km ESE of Hidden Valley Lake, CaliforniaSun, Jan 9, 5:28 PM PST · 15972 days ago · 6 km deep · 95 km away
52. 1.79 km SE of Hidden Valley Lake, CaliforniaSun, Jan 9, 6:44 PM PST · 15972 days ago · 0 km deep · 97 km away
53. 1.63 km NNE of Pacifica, CaliforniaMon, Jan 10, 8:30 AM PST · 15972 days ago · 10 km deep · 68 km away
54. 1.91 km SE of Danville, CaliforniaMon, Jan 10, 10:13 AM PST · 15972 days ago · 6 km deep · 26 km away
55. 1.72 km WSW of Broadmoor, CaliforniaMon, Jan 10, 7:45 PM PST · 15971 days ago · 12 km deep · 69 km away
56. 1.615 km SE of Livermore, CaliforniaTue, Jan 11, 11:56 AM PST · 15970 days ago · 1 km deep · 54 km away
57. 2.214 km NNE of Angwin, CaliforniaTue, Jan 11, 2:26 PM PST · 15970 days ago · 9 km deep · 85 km away
58. 1.611 km SE of Hidden Valley Lake, CaliforniaThu, Jan 13, 3:47 AM PST · 15969 days ago · 3 km deep · 96 km away
59. 2.06 km NNE of East Foothills, CaliforniaThu, Jan 13, 9:57 AM PST · 15969 days ago · 5 km deep · 65 km away
60. 1.7Northern CaliforniaSat, Jan 15, 9:22 AM PST · 15967 days ago · 6 km deep · 78 km away

Before

1. 2.08 km E of Seven Trees, CaliforniaFri, Nov 19, 5:17 AM PST · 16024 days ago · 6 km deep · 83 km away
2. 2.211 km NNE of Morgan Hill, CaliforniaFri, Nov 19, 1:01 AM PST · 16024 days ago · 5 km deep · 90 km away
3. 1.57 km SSW of Calistoga, CaliforniaThu, Nov 18, 3:08 AM PST · 16025 days ago · 5 km deep · 87 km away
4. 1.711 km SW of Brentwood, CaliforniaMon, Nov 15, 1:22 AM PST · 16028 days ago · 15 km deep · 21 km away
5. 3.09 km NNE of East Foothills, CaliforniaSun, Nov 14, 4:51 PM PST · 16028 days ago · 9 km deep · 63 km away
6. 2.13 km SE of Larkfield-Wikiup, CaliforniaThu, Nov 11, 11:49 AM PST · 16031 days ago · 3 km deep · 91 km away
7. 1.61 km ENE of East Richmond Heights, CaliforniaWed, Nov 10, 2:02 PM PST · 16032 days ago · 7 km deep · 39 km away
8. 1.9Northern CaliforniaWed, Nov 10, 2:00 PM PST · 16032 days ago · 3 km deep · 40 km away
9. 2.33 km ESE of Los Gatos, CaliforniaTue, Nov 9, 9:24 AM PST · 16034 days ago · 10 km deep · 90 km away
10. 1.518 km E of Seven Trees, CaliforniaTue, Nov 9, 6:02 AM PST · 16034 days ago · 4 km deep · 83 km away
11. 1.612 km ESE of Hidden Valley Lake, CaliforniaTue, Nov 9, 5:01 AM PST · 16034 days ago · 3 km deep · 96 km away
12. 1.518 km NW of Diablo Grande, CaliforniaSun, Nov 7, 2:28 PM PST · 16035 days ago · 4 km deep · 69 km away
13. 2.03 km W of Livermore, CaliforniaSat, Nov 6, 1:28 PM PST · 16036 days ago · 15 km deep · 38 km away
14. 2.03 km W of Livermore, CaliforniaFri, Nov 5, 8:56 PM PST · 16037 days ago · 14 km deep · 38 km away
15. 2.53 km W of Livermore, CaliforniaFri, Nov 5, 12:50 PM PST · 16037 days ago · 15 km deep · 39 km away
16. 3.23 km W of Moskowite Corner, CaliforniaThu, Nov 4, 7:10 AM PST · 16039 days ago · 8 km deep · 57 km away
17. 2.13 km SSW of Green Valley, CaliforniaWed, Nov 3, 6:33 PM PST · 16039 days ago · 11 km deep · 35 km away
18. 1.710 km SE of Livermore, CaliforniaMon, Nov 1, 3:47 AM PST · 16042 days ago · 4 km deep · 48 km away
19. 1.87 km S of Sunol, CaliforniaThu, Oct 28, 1:43 PM PDT · 16045 days ago · 7 km deep · 55 km away
20. 1.610 km S of Muir Beach, CaliforniaTue, Oct 26, 10:55 AM PDT · 16048 days ago · 13 km deep · 68 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1082133. Read Sat, Oct 3, 2026, 6:34 AM UTC.