M1.7 earthquake 10 km E of Lakehead, California

Magnitude

1.7 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sun, Aug 22, 1982, 7:46 PM PDT

UTC

1982-08-23 02:46:10 UTC

Depth

4.8 km (3.0 mi), shallow

Epicenter

40.921° N, 122.253° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 18.3 km in depth

Magnitude uncertainty

±0.41

Depth from

From location

Station coverage gap

218°, poorly surrounded by stations

Stations used

9

• Mountain Gate, CaliforniaPopulation 943. Forecast24 kmNNE
• Shasta Lake, CaliforniaPopulation 10,159. Forecast29 kmNNE
• Chico, CaliforniaPopulation 121,345. Forecast137 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast841 kmNNW

After

1. 2.37 km NW of Old Station, CaliforniaMon, Aug 23, 7:08 AM PDT · 16111 days ago · 5 km deep · 67 km away
2. 1.615 km SSW of Old Station, CaliforniaMon, Aug 23, 7:53 PM PDT · 16111 days ago · 3 km deep · 75 km away
3. 1.810 km ESE of Bend, CaliforniaTue, Aug 24, 11:36 PM PDT · 16110 days ago · 10 km deep · 77 km away
4. 2.110 km W of Old Station, CaliforniaWed, Aug 25, 6:17 PM PDT · 16109 days ago · 2 km deep · 64 km away
5. 2.212 km NE of Millville, CaliforniaFri, Aug 27, 3:14 AM PDT · 16108 days ago · 3 km deep · 37 km away
6. 3.222 km ESE of Tennant, CaliforniaFri, Aug 27, 3:02 PM PDT · 16107 days ago · 2 km deep · 85 km away
7. 2.24 km WSW of Old Station, CaliforniaFri, Aug 27, 10:00 PM PDT · 16107 days ago · 7 km deep · 71 km away
8. 1.86 km NE of Bella Vista, CaliforniaFri, Aug 27, 11:36 PM PDT · 16107 days ago · 4 km deep · 27 km away
9. 1.89 km ENE of Bella Vista, CaliforniaFri, Aug 27, 11:36 PM PDT · 16107 days ago · 7 km deep · 28 km away
10. 2.210 km W of Old Station, CaliforniaMon, Aug 30, 10:49 AM PDT · 16104 days ago · 2 km deep · 65 km away
11. 2.013 km W of Old Station, CaliforniaMon, Aug 30, 1:30 PM PDT · 16104 days ago · 7 km deep · 63 km away
12. 2.028 km NW of McArthur, CaliforniaMon, Aug 30, 11:21 PM PDT · 16104 days ago · 12 km deep · 64 km away
13. 2.29 km W of Old Station, CaliforniaTue, Aug 31, 11:50 PM PDT · 16103 days ago · 3 km deep · 66 km away
14. 2.410 km WSW of Douglas City, CaliforniaFri, Sep 3, 6:53 AM PDT · 16100 days ago · 6 km deep · 76 km away
15. 1.98 km W of Old Station, CaliforniaSun, Sep 5, 3:12 AM PDT · 16099 days ago · 4 km deep · 67 km away
16. 2.08 km W of Old Station, CaliforniaMon, Sep 6, 2:00 AM PDT · 16098 days ago · 2 km deep · 67 km away
17. 1.88 km W of Old Station, CaliforniaMon, Sep 6, 7:15 AM PDT · 16097 days ago · 3 km deep · 67 km away
18. 1.721 km N of Mineral, CaliforniaMon, Sep 6, 10:40 AM PDT · 16097 days ago · 11 km deep · 68 km away
19. 2.210 km W of Old Station, CaliforniaTue, Sep 7, 1:49 PM PDT · 16096 days ago · 0 km deep · 65 km away
20. 1.715 km SW of Old Station, CaliforniaThu, Sep 9, 12:57 PM PDT · 16094 days ago · 2 km deep · 67 km away
21. 2.59 km W of Old Station, CaliforniaFri, Sep 10, 5:07 PM PDT · 16093 days ago · 3 km deep · 66 km away
22. 1.53 km ESE of Paynes Creek, CaliforniaSat, Sep 11, 7:36 AM PDT · 16092 days ago · 0 km deep · 73 km away
23. 2.026 km E of Tennant, CaliforniaSat, Sep 11, 12:11 PM PDT · 16092 days ago · 1 km deep · 90 km away
24. 3.120 km ENE of Ruth, CaliforniaSat, Sep 11, 11:51 PM PDT · 16092 days ago · 38 km deep · 95 km away
25. 2.220 km ENE of Shingletown, CaliforniaMon, Sep 13, 3:45 AM PDT · 16090 days ago · 4 km deep · 65 km away
26. 2.128 km E of Tennant, CaliforniaFri, Sep 17, 11:15 PM PDT · 16086 days ago · -1 km deep · 94 km away
27. 1.713 km S of Old Station, CaliforniaMon, Sep 20, 11:44 AM PDT · 16083 days ago · 3 km deep · 80 km away
28. 1.814 km W of Chester, CaliforniaWed, Sep 22, 10:12 PM PDT · 16081 days ago · 3 km deep · 100 km away
29. 2.04 km S of Mineral, CAWed, Sep 22, 10:35 PM PDT · 16081 days ago · 5 km deep · 88 km away
30. 2.56 km NNE of Los Molinos, CaliforniaThu, Sep 23, 10:44 AM PDT · 16080 days ago · 16 km deep · 96 km away
31. 1.513 km W of Chester, CaliforniaFri, Sep 24, 10:15 AM PDT · 16079 days ago · 3 km deep · 100 km away
32. 2.717 km WNW of McArthur, CaliforniaFri, Oct 1, 2:06 AM PDT · 16073 days ago · 3 km deep · 61 km away
33. 1.713 km NNE of Mineral, CaliforniaSun, Oct 3, 7:16 PM PDT · 16070 days ago · 2 km deep · 81 km away
34. 1.515 km NNE of Mineral, CaliforniaMon, Oct 4, 11:36 PM PDT · 16069 days ago · 2 km deep · 80 km away
35. 2.115 km NE of Mineral, CaliforniaTue, Oct 5, 2:03 PM PDT · 16068 days ago · 3 km deep · 83 km away
36. 1.816 km NNW of Chester, CaliforniaSat, Oct 9, 3:33 PM PDT · 16064 days ago · -1 km deep · 96 km away
37. 2.110 km NNE of McCloud, CaliforniaSun, Oct 10, 1:05 AM PDT · 16064 days ago · 0 km deep · 49 km away
38. 1.910 km S of Douglas City, CaliforniaThu, Oct 14, 10:58 AM PDT · 16059 days ago · 3 km deep · 71 km away
39. 1.917 km NE of Carrick, CaliforniaThu, Oct 14, 8:04 PM PDT · 16059 days ago · 1 km deep · 69 km away
40. 2.617 km NW of McArthur, CaliforniaThu, Oct 14, 11:23 PM PDT · 16059 days ago · 4 km deep · 63 km away
41. 1.715 km ESE of Mineral, CaliforniaFri, Oct 15, 9:01 PM PDT · 16058 days ago · 3 km deep · 99 km away
42. 1.914 km W of Chester, CaliforniaFri, Oct 15, 9:30 PM PDT · 16058 days ago · 3 km deep · 100 km away
43. 1.515 km ESE of Mineral, CaliforniaSun, Oct 17, 2:56 PM PDT · 16056 days ago · 13 km deep · 98 km away
44. 1.513 km W of Chester, CaliforniaSun, Oct 17, 11:00 PM PDT · 16056 days ago · 8 km deep · 99 km away
45. 1.57 km WSW of Lakehead, CaliforniaMon, Oct 18, 10:25 PM PDT · 16055 days ago · 4 km deep · 18 km away
46. 1.9Northern CaliforniaThu, Oct 21, 4:15 PM PDT · 16052 days ago · 6 km deep · 98 km away
47. 2.315 km W of Chester, CaliforniaThu, Oct 21, 4:15 PM PDT · 16052 days ago · 11 km deep · 99 km away

Before

1. 2.79 km W of Old Station, CaliforniaSat, Aug 21, 7:38 AM PDT · 16113 days ago · 2 km deep · 66 km away
2. 1.85 km W of Old Station, CaliforniaSat, Aug 21, 6:29 AM PDT · 16113 days ago · 6 km deep · 70 km away
3. 2.220 km ENE of Burnt Ranch, CaliforniaSat, Aug 21, 5:33 AM PDT · 16113 days ago · 20 km deep · 84 km away
4. 2.09 km W of Old Station, CaliforniaSat, Aug 21, 1:30 AM PDT · 16114 days ago · 2 km deep · 66 km away
5. 1.615 km NNE of McCloud, CaliforniaFri, Aug 20, 2:21 AM PDT · 16115 days ago · 3 km deep · 54 km away
6. 2.18 km W of Old Station, CaliforniaFri, Aug 20, 1:17 AM PDT · 16115 days ago · 3 km deep · 67 km away
7. 2.09 km W of Old Station, CaliforniaThu, Aug 19, 2:44 AM PDT · 16116 days ago · 4 km deep · 66 km away
8. 2.99 km W of Old Station, CaliforniaThu, Aug 19, 1:10 AM PDT · 16116 days ago · 2 km deep · 66 km away
9. 2.29 km W of Old Station, CaliforniaWed, Aug 18, 4:23 PM PDT · 16116 days ago · 3 km deep · 66 km away
10. 2.88 km W of Old Station, CaliforniaWed, Aug 18, 2:12 PM PDT · 16116 days ago · 1 km deep · 67 km away
11. 2.27 km W of Old Station, CaliforniaWed, Aug 18, 6:45 AM PDT · 16116 days ago · 6 km deep · 68 km away
12. 2.417 km W of Old Station, CaliforniaWed, Aug 18, 12:28 AM PDT · 16117 days ago · 10 km deep · 58 km away
13. 3.08 km W of Old Station, CaliforniaTue, Aug 17, 1:51 PM PDT · 16117 days ago · 4 km deep · 66 km away
14. 2.018 km N of Big Bend, CaliforniaThu, Aug 12, 1:03 AM PDT · 16123 days ago · 9 km deep · 41 km away
15. 3.016 km W of Macdoel, CaliforniaWed, Aug 11, 6:11 PM PDT · 16123 days ago · 7 km deep · 98 km away
16. 2.615 km W of Mount Hebron, CaliforniaWed, Aug 11, 5:52 PM PDT · 16123 days ago · 7 km deep · 97 km away
17. 2.815 km W of Mount Hebron, CaliforniaWed, Aug 11, 12:46 PM PDT · 16123 days ago · 7 km deep · 97 km away
18. 2.94 km S of Cassel, CaliforniaWed, Aug 11, 5:19 AM PDT · 16123 days ago · -2 km deep · 59 km away
19. 2.24 km NNW of Hat Creek, CaliforniaTue, Aug 10, 2:44 PM PDT · 16124 days ago · 1 km deep · 60 km away
20. 2.34 km S of Cassel, CaliforniaTue, Aug 10, 11:43 AM PDT · 16124 days ago · -1 km deep · 60 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1077916. Read Fri, Oct 2, 2026, 10:10 PM UTC.