M1.5 earthquake 20 km NE of Shingletown, California

Magnitude

1.5 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Sat, May 17, 1986, 1:10 AM PDT

UTC

1986-05-17 08:10:21 UTC

Depth

3.4 km (2.1 mi), shallow

Epicenter

40.635° N, 121.744° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.0 km horizontally, 7.2 km in depth

Magnitude uncertainty

±0.18

Depth from

From location

Station coverage gap

182°, poorly surrounded by stations

Stations used

5

• Shingletown, CaliforniaPopulation 2,283. Forecast20 kmNE
• Anderson, CaliforniaPopulation 10,217. Forecast51 kmENE
• Chico, CaliforniaPopulation 121,345. Forecast101 kmN
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast794 kmNNW

After

1. 1.54 km W of Bella Vista, CaliforniaMon, May 19, 12:35 AM PDT · 14747 days ago · 4 km deep · 45 km away
2. 2.30 km S of Shasta Lake, CaliforniaMon, May 19, 3:08 AM PDT · 14747 days ago · 26 km deep · 53 km away
3. 1.99 km WNW of Chester, CaliforniaThu, May 22, 10:18 PM PDT · 14743 days ago · -2 km deep · 48 km away
4. 1.712 km WSW of Chester, CaliforniaTue, May 27, 9:51 PM PDT · 14738 days ago · 3 km deep · 50 km away
5. 1.613 km ESE of Montgomery Creek, CaliforniaThu, May 29, 4:43 AM PDT · 14737 days ago · 4 km deep · 17 km away
6. 1.89 km NNW of Old Station, CaliforniaSun, Jun 1, 1:31 PM PDT · 14734 days ago · 4 km deep · 25 km away
7. 2.0Northern CaliforniaThu, Jun 5, 1:50 PM PDT · 14730 days ago · 4 km deep · 91 km away
8. 1.913 km E of Cottonwood, CaliforniaSat, Jun 7, 3:18 AM PDT · 14728 days ago · 4 km deep · 44 km away
9. 1.714 km ESE of Mineral, CaliforniaMon, Jun 9, 7:56 PM PDT · 14726 days ago · 6 km deep · 47 km away
10. 2.415km WNW of Susanville, CASun, Jun 15, 8:27 AM PDT · 14720 days ago · 10 km deep · 81 km away
11. 2.215 km WNW of Susanville, CaliforniaSun, Jun 15, 8:39 AM PDT · 14720 days ago · 4 km deep · 80 km away
12. 2.17 km NW of Old Station, CaliforniaMon, Jun 16, 11:32 PM PDT · 14718 days ago · 5 km deep · 24 km away
13. 1.515 km SE of Mineral, CaliforniaTue, Jun 17, 2:34 AM PDT · 14718 days ago · 5 km deep · 48 km away
14. 2.312 km SE of Bend, CaliforniaWed, Jun 18, 8:08 PM PDT · 14717 days ago · 22 km deep · 57 km away
15. 2.30 km SE of Shasta Lake, CaliforniaWed, Jun 18, 9:45 PM PDT · 14716 days ago · 28 km deep · 53 km away
16. 1.59 km NNE of Mineral, CaliforniaSun, Jun 22, 4:22 PM PDT · 14713 days ago · 5 km deep · 28 km away
17. 2.52 km S of Taylorsville, CaliforniaThu, Jun 26, 8:54 PM PDT · 14708 days ago · 2 km deep · 100 km away
18. 1.93 km SW of Prattville, CaliforniaSun, Jun 29, 4:31 PM PDT · 14706 days ago · 4 km deep · 68 km away
19. 2.23 km SW of Prattville, CaliforniaMon, Jun 30, 6:56 AM PDT · 14705 days ago · 8 km deep · 69 km away
20. 1.711 km NNE of Westwood, CaliforniaMon, Jun 30, 11:29 AM PDT · 14705 days ago · 1 km deep · 74 km away
21. 1.61 km SW of Lake Almanor Country Club, CaliforniaMon, Jul 7, 8:51 AM PDT · 14698 days ago · 10 km deep · 66 km away
22. 3.217 km ENE of Mineral, CaliforniaTue, Jul 8, 7:19 PM PDT · 14697 days ago · 3 km deep · 37 km away
23. 1.6Northern CaliforniaWed, Jul 9, 11:29 AM PDT · 14696 days ago · 3 km deep · 65 km away
24. 2.314 km NW of Chester, CaliforniaTue, Jul 15, 8:59 AM PDT · 14690 days ago · 1 km deep · 42 km away

Before

1. 1.73 km W of Greenville, CaliforniaFri, May 16, 3:01 PM PDT · 14750 days ago · 4 km deep · 84 km away
2. 1.74 km WNW of Bella Vista, CaliforniaThu, May 15, 1:56 AM PDT · 14751 days ago · 4 km deep · 45 km away
3. 2.80 km WSW of Central Valley (historical), CaliforniaWed, May 14, 8:41 PM PDT · 14751 days ago · 24 km deep · 54 km away
4. 1.78 km N of Chester, CaliforniaMon, May 12, 8:11 AM PDT · 14754 days ago · 1 km deep · 52 km away
5. 2.49 km SSE of Stirling City, CaliforniaSat, May 10, 1:29 PM PDT · 14756 days ago · 4 km deep · 92 km away
6. 1.67 km S of Cottonwood, CaliforniaThu, May 8, 3:59 PM PDT · 14758 days ago · 5 km deep · 57 km away
7. 1.95 km W of Twain, CaliforniaWed, May 7, 5:30 PM PDT · 14759 days ago · 8 km deep · 86 km away
8. 1.613 km WNW of Paynes Creek, CaliforniaWed, May 7, 7:45 AM PDT · 14759 days ago · 23 km deep · 40 km away
9. 2.88 km NNW of Chester, CaliforniaTue, May 6, 11:08 PM PDT · 14759 days ago · 8 km deep · 49 km away
10. 2.32 km E of Storrie, CaliforniaTue, May 6, 5:13 PM PDT · 14760 days ago · 4 km deep · 88 km away
11. 1.9Northern CaliforniaFri, May 2, 7:16 AM PDT · 14764 days ago · 5 km deep · 53 km away
12. 1.70 km SSE of Meadow Valley, CaliforniaTue, Apr 29, 1:26 PM PDT · 14767 days ago · 3 km deep · 98 km away
13. 2.02 km E of Tobin, CaliforniaMon, Apr 28, 4:50 PM PDT · 14768 days ago · 3 km deep · 87 km away
14. 1.97 km ESE of Magalia, CaliforniaMon, Apr 28, 9:00 AM PDT · 14768 days ago · 11 km deep · 96 km away
15. 2.02 km ENE of Lake Almanor West, CaliforniaSun, Apr 27, 3:15 AM PDT · 14769 days ago · 6 km deep · 64 km away
16. 1.96 km ENE of Mineral, CaliforniaSat, Apr 26, 8:26 AM PST · 14770 days ago · 8 km deep · 34 km away
17. 1.64 km ENE of Tobin, CaliforniaSat, Apr 19, 7:07 AM PST · 14777 days ago · 4 km deep · 86 km away
18. 2.013 km ESE of Mineral, CaliforniaFri, Apr 18, 2:49 PM PST · 14778 days ago · 7 km deep · 46 km away
19. 2.06 km W of Twain, CaliforniaThu, Apr 17, 8:45 AM PST · 14779 days ago · 5 km deep · 86 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc10085570. Read Sat, Oct 3, 2026, 2:40 PM UTC.