M1.6 earthquake 24 km WNW of Paskenta, California

Magnitude

1.6 (md), micro

Local time

Wed, Dec 18, 1985, 10:10 PM PST

UTC

1985-12-19 06:10:21 UTC

Depth

3.6 km (2.3 mi), shallow

Epicenter

39.992° N, 122.801° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 7.7 km horizontally, 2.7 km in depth

Depth from

From location

Station coverage gap

276°, poorly surrounded by stations

Stations used

5

• Rancho Tehama Reserve, CaliforniaPopulation 1,485. Forecast34 kmW
• Red Bluff, CaliforniaPopulation 14,131. Forecast52 kmWSW
• Chico, CaliforniaPopulation 121,345. Forecast87 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast774 kmNNW

After

1. 2.526 km W of Paskenta, CaliforniaMon, Dec 23, 4:21 PM PST · 14889 days ago · -1 km deep · 8 km away
2. 1.722 km ENE of Potter Valley, CaliforniaTue, Dec 24, 1:15 AM PST · 14889 days ago · 10 km deep · 66 km away
3. 1.910 km NNE of Brooktrails, CaliforniaThu, Dec 26, 2:22 AM PST · 14887 days ago · 8 km deep · 69 km away
4. 1.816 km WNW of Mad River, CaliforniaThu, Dec 26, 1:00 PM PST · 14887 days ago · 24 km deep · 94 km away
5. 2.10 km SE of Redwood Valley, CaliforniaMon, Dec 30, 8:46 AM PST · 14883 days ago · 5 km deep · 88 km away
6. 3.24 km ESE of Bella Vista, CaliforniaMon, Dec 30, 10:19 PM PST · 14882 days ago · 19 km deep · 87 km away
7. 2.010 km NNE of Princeton, CaliforniaFri, Jan 3, 5:38 PM PST · 14878 days ago · 5 km deep · 91 km away
8. 2.37 km ESE of Millville, CaliforniaSat, Jan 4, 6:28 PM PST · 14877 days ago · -1 km deep · 85 km away
9. 1.716 km NNE of Upper Lake, CaliforniaTue, Jan 7, 6:54 PM PST · 14874 days ago · 6 km deep · 78 km away
10. 1.919 km ENE of Potter Valley, CaliforniaWed, Jan 8, 12:43 AM PST · 14874 days ago · 6 km deep · 68 km away
11. 1.625 km SE of Covelo, CaliforniaWed, Jan 8, 3:34 AM PST · 14874 days ago · 4 km deep · 48 km away
12. 1.74 km NW of Redwood Valley, CaliforniaWed, Jan 8, 5:44 AM PST · 14874 days ago · 5 km deep · 86 km away
13. 1.71 km E of Calpella, CaliforniaWed, Jan 8, 10:56 AM PST · 14874 days ago · 6 km deep · 91 km away
14. 1.815 km NE of Miranda, CaliforniaWed, Jan 8, 4:54 PM PST · 14873 days ago · 19 km deep · 88 km away
15. 2.918 km WNW of Junction City, CaliforniaThu, Jan 9, 1:39 AM PST · 14873 days ago · 28 km deep · 97 km away
16. 1.94 km NW of Redwood Valley, CaliforniaFri, Jan 10, 12:04 AM PST · 14872 days ago · -1 km deep · 86 km away
17. 2.126 km W of Paskenta, CaliforniaSun, Jan 12, 2:02 PM PST · 14870 days ago · -1 km deep · 9 km away
18. 1.710 km SSE of Laytonville, CaliforniaMon, Jan 13, 12:03 AM PST · 14869 days ago · 7 km deep · 68 km away
19. 2.72 km NW of Laytonville, CaliforniaTue, Jan 14, 12:15 PM PST · 14868 days ago · 7 km deep · 68 km away
20. 1.82 km WNW of Laytonville, CaliforniaTue, Jan 14, 12:40 PM PST · 14868 days ago · 6 km deep · 69 km away
21. 1.612 km NNE of Brooktrails, CaliforniaWed, Jan 15, 3:18 AM PST · 14867 days ago · 4 km deep · 68 km away
22. 2.74 km WNW of Redway, CaliforniaThu, Jan 16, 3:51 AM PST · 14866 days ago · 21 km deep · 93 km away
23. 2.217 km WSW of Leggett, CaliforniaThu, Jan 16, 4:12 PM PST · 14865 days ago · 2 km deep · 96 km away
24. 1.620 km N of Potter Valley, CaliforniaSat, Jan 18, 10:08 AM PST · 14864 days ago · 6 km deep · 61 km away
25. 2.112 km NE of Bend, CaliforniaSat, Jan 18, 12:03 PM PST · 14864 days ago · 19 km deep · 71 km away
26. 1.916 km NE of Miranda, CaliforniaSun, Jan 19, 1:34 PM PST · 14863 days ago · 4 km deep · 85 km away
27. 2.19 km W of Laytonville, CaliforniaThu, Jan 23, 1:06 AM PST · 14859 days ago · 1 km deep · 76 km away
28. 2.02 km NW of Laytonville, CaliforniaThu, Jan 23, 8:03 PM PST · 14858 days ago · 7 km deep · 68 km away
29. 1.86 km ESE of Bella Vista, CaliforniaSat, Jan 25, 10:13 PM PST · 14856 days ago · 19 km deep · 87 km away
30. 1.91 km SSW of Redway, CaliforniaSun, Jan 26, 3:56 PM PST · 14855 days ago · 18 km deep · 89 km away
31. 2.17 km NNE of Proberta, CaliforniaMon, Jan 27, 8:13 AM PST · 14855 days ago · 6 km deep · 59 km away
32. 1.928 km E of Covelo, CaliforniaTue, Jan 28, 3:34 PM PST · 14853 days ago · 4 km deep · 23 km away
33. 3.025 km W of Paskenta, CaliforniaMon, Feb 3, 12:45 PM PST · 14848 days ago · -1 km deep · 8 km away
34. 2.318 km NE of Potter Valley, CaliforniaWed, Feb 5, 8:00 AM PST · 14846 days ago · 5 km deep · 63 km away
35. 1.916 km N of Potter Valley, CaliforniaThu, Feb 6, 3:51 AM PST · 14845 days ago · 5 km deep · 63 km away
36. 2.417 km WSW of Elk Creek, CaliforniaWed, Feb 12, 1:40 PM PST · 14839 days ago · 3 km deep · 53 km away
37. 3.110 km E of Artois, CaliforniaSat, Feb 15, 2:27 PM PST · 14835 days ago · 11 km deep · 74 km away

Before

1. 1.916 km NE of Lucerne, CaliforniaSun, Dec 15, 1:53 PM PST · 14898 days ago · 5 km deep · 87 km away
2. 1.67 km E of Willits, CaliforniaSat, Dec 14, 11:27 PM PST · 14898 days ago · 8 km deep · 76 km away
3. 1.75 km SE of Calpella, CaliforniaTue, Dec 10, 8:43 PM PST · 14902 days ago · 5 km deep · 93 km away
4. 1.614 km E of Willows, CaliforniaFri, Dec 6, 10:33 PM PST · 14906 days ago · 13 km deep · 83 km away
5. 2.22 km E of Benbow, CaliforniaThu, Dec 5, 5:53 PM PST · 14907 days ago · 17 km deep · 82 km away
6. 2.29 km N of Mad River, CaliforniaTue, Dec 3, 1:03 PM PST · 14910 days ago · 4 km deep · 84 km away
7. 3.05 km S of Millville, CaliforniaMon, Dec 2, 9:47 AM PST · 14911 days ago · 4 km deep · 78 km away
8. 1.88 km N of Upper Lake, CaliforniaSun, Dec 1, 3:13 AM PST · 14912 days ago · 6 km deep · 84 km away
9. 1.930 km WNW of Paskenta, CaliforniaFri, Nov 29, 9:13 PM PST · 14913 days ago · 1 km deep · 7 km away
10. 2.334 km NW of Paskenta, CaliforniaWed, Nov 27, 1:35 AM PST · 14916 days ago · 8 km deep · 11 km away
11. 1.96 km E of Calpella, CaliforniaTue, Nov 26, 2:53 PM PST · 14916 days ago · 3 km deep · 89 km away
12. 1.712 km WSW of Willits, CaliforniaTue, Nov 26, 10:18 AM PST · 14917 days ago · 0 km deep · 92 km away
13. 2.026 km NE of Potter Valley, CaliforniaSun, Nov 24, 10:08 PM PST · 14918 days ago · 7 km deep · 58 km away
14. 2.118 km ENE of Weott, CaliforniaSun, Nov 24, 6:26 PM PST · 14918 days ago · 19 km deep · 91 km away
15. 1.817 km NE of Myers Flat, CaliforniaSun, Nov 24, 6:25 PM PST · 14918 days ago · 22 km deep · 90 km away
16. 1.810 km NE of Phillipsville, CaliforniaSat, Nov 23, 11:17 PM PST · 14919 days ago · 26 km deep · 82 km away
17. 2.49 km NNW of Alderpoint, CaliforniaSat, Nov 23, 9:30 PM PST · 14919 days ago · 26 km deep · 79 km away
18. 1.915 km W of Manton, CaliforniaSat, Nov 23, 8:49 PM PST · 14919 days ago · 28 km deep · 80 km away
19. 2.210 km NE of Phillipsville, CaliforniaSat, Nov 23, 12:47 AM PST · 14920 days ago · 29 km deep · 82 km away
20. 1.710 km NE of Phillipsville, CaliforniaFri, Nov 22, 11:47 PM PST · 14920 days ago · 24 km deep · 82 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc63009. Read Tue, Sep 29, 2026, 9:49 AM UTC.