M1.8 earthquake 13 km W of Chester, California

Magnitude

1.8 (md), micro

Local time

Thu, Jun 17, 1982, 6:52 PM PDT

UTC

1982-06-18 01:52:37 UTC

Depth

-1.7 km (-1.0 mi), shallow

Epicenter

40.284° N, 121.393° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 6.2 km horizontally, 5.7 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

307°, poorly surrounded by stations

Stations used

3

• Chester, CaliforniaPopulation 2,144. Forecast14 kmW
• Magalia, CaliforniaPopulation 11,310. Forecast55 kmNNE
• Chico, CaliforniaPopulation 121,345. Forecast72 kmNNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast747 kmNNW

After

1. 1.67 km N of McArthur, CaliforniaSat, Jun 19, 2:32 AM PDT · 16167 days ago · 4 km deep · 93 km away
2. 3.013 km NNW of Burney, CaliforniaTue, Jun 22, 9:32 AM PDT · 16163 days ago · -1 km deep · 84 km away
3. 2.313 km NNW of Burney, CaliforniaTue, Jun 22, 2:13 PM PDT · 16163 days ago · -1 km deep · 83 km away
4. 2.12 km SSW of Chester, CaliforniaThu, Jun 24, 5:30 AM PDT · 16161 days ago · -2 km deep · 13 km away
5. 1.713 km NE of Mineral, CaliforniaMon, Jun 28, 4:54 AM PDT · 16157 days ago · 7 km deep · 16 km away
6. 2.212 km N of Butte Meadows, CaliforniaThu, Jul 1, 8:02 PM PDT · 16154 days ago · 8 km deep · 16 km away
7. 1.95 km WNW of Mountain Gate, CaliforniaFri, Jul 2, 2:24 PM PDT · 16153 days ago · 3 km deep · 98 km away
8. 2.319 km ENE of Shingletown, CaliforniaFri, Jul 2, 8:44 PM PDT · 16153 days ago · 5 km deep · 36 km away
9. 2.46 km E of Montgomery Creek, CaliforniaSat, Jul 3, 6:07 AM PDT · 16152 days ago · 4 km deep · 74 km away
10. 1.714 km NNE of Mineral, CaliforniaSat, Jul 3, 6:48 PM PDT · 16152 days ago · 2 km deep · 23 km away
11. 2.21 km NE of Canyondam, CaliforniaSun, Jul 4, 4:08 AM PDT · 16151 days ago · 0 km deep · 30 km away
12. 1.614 km NNE of Mineral, CaliforniaMon, Jul 5, 9:59 PM PDT · 16150 days ago · 1 km deep · 25 km away
13. 2.06 km NNW of Mineral, CaliforniaTue, Jul 6, 1:05 PM PDT · 16149 days ago · 2 km deep · 24 km away
14. 1.910 km SW of Mineral, CaliforniaThu, Jul 8, 5:16 AM PDT · 16147 days ago · 3 km deep · 25 km away
15. 2.110 km SW of Mineral, CaliforniaThu, Jul 8, 5:18 AM PDT · 16147 days ago · 3 km deep · 24 km away
16. 1.614 km NNE of Mineral, CaliforniaFri, Jul 9, 4:07 AM PDT · 16146 days ago · 1 km deep · 24 km away
17. 2.511 km NW of Sierra City, CaliforniaFri, Jul 9, 6:02 PM PDT · 16146 days ago · 13 km deep · 91 km away
18. 1.83 km ESE of Goodyears Bar, CaliforniaTue, Jul 13, 10:58 AM PDT · 16142 days ago · 22 km deep · 96 km away
19. 2.67 km N of Pike, CaliforniaTue, Jul 13, 7:00 PM PDT · 16142 days ago · 34 km deep · 93 km away
20. 1.93 km WNW of Cromberg, CaliforniaWed, Jul 14, 2:29 AM PDT · 16142 days ago · 5 km deep · 73 km away
21. 2.43 km N of Camptonville, CaliforniaWed, Jul 14, 1:00 PM PDT · 16141 days ago · 26 km deep · 94 km away
22. 2.06 km NE of Bend, CaliforniaThu, Jul 15, 1:27 AM PDT · 16141 days ago · 20 km deep · 64 km away
23. 1.55 km SE of Hamilton City, CaliforniaSun, Jul 18, 5:20 PM PDT · 16137 days ago · 23 km deep · 81 km away
24. 2.010 km W of Paynes Creek, CaliforniaSun, Jul 18, 10:43 PM PDT · 16137 days ago · 13 km deep · 55 km away
25. 2.110 km NW of Paynes Creek, CaliforniaTue, Jul 20, 7:12 PM PDT · 16135 days ago · 18 km deep · 53 km away
26. 1.85 km NE of Mineral, CaliforniaThu, Jul 22, 9:38 PM PDT · 16133 days ago · 7 km deep · 18 km away
27. 2.313 km ESE of Mineral, CaliforniaTue, Jul 27, 7:38 AM PDT · 16128 days ago · -2 km deep · 6 km away
28. 1.810 km W of Plumas Eureka (historical), CaliforniaSat, Jul 31, 3:30 AM PDT · 16124 days ago · 4 km deep · 75 km away
29. 2.05 km S of Whitehawk, CaliforniaMon, Aug 2, 12:13 PM PDT · 16122 days ago · 17 km deep · 100 km away
30. 2.116 km SW of Old Station, CaliforniaWed, Aug 4, 3:53 AM PDT · 16120 days ago · 1 km deep · 32 km away
31. 2.14 km NNE of Mineral, CaliforniaWed, Aug 4, 5:27 PM PDT · 16120 days ago · 8 km deep · 19 km away
32. 3.04 km S of Cassel, CaliforniaFri, Aug 6, 2:29 PM PDT · 16118 days ago · -2 km deep · 68 km away
33. 2.1Northern CaliforniaFri, Aug 6, 2:56 PM PDT · 16118 days ago · 0 km deep · 68 km away
34. 3.24 km SSW of Cassel, CaliforniaFri, Aug 6, 9:40 PM PDT · 16118 days ago · -2 km deep · 68 km away
35. 1.94 km SSW of Cassel, CaliforniaFri, Aug 6, 10:37 PM PDT · 16118 days ago · 3 km deep · 68 km away
36. 2.97 km S of East Quincy, CaliforniaSat, Aug 7, 12:31 PM PDT · 16117 days ago · 19 km deep · 63 km away
37. 2.115 km ENE of Shingletown, CaliforniaSun, Aug 8, 10:01 AM PDT · 16116 days ago · 3 km deep · 42 km away
38. 2.55 km WNW of Hamilton City, CaliforniaSun, Aug 8, 10:11 PM PDT · 16116 days ago · 24 km deep · 82 km away
39. 2.34 km SSE of Cassel, CaliforniaTue, Aug 10, 12:42 AM PDT · 16115 days ago · -2 km deep · 67 km away
40. 2.218 km N of Mineral, CaliforniaTue, Aug 10, 10:10 AM PDT · 16114 days ago · 13 km deep · 32 km away
41. 2.34 km S of Cassel, CaliforniaTue, Aug 10, 11:43 AM PDT · 16114 days ago · -1 km deep · 68 km away
42. 2.24 km NNW of Hat Creek, CaliforniaTue, Aug 10, 2:44 PM PDT · 16114 days ago · 1 km deep · 66 km away
43. 2.94 km S of Cassel, CaliforniaWed, Aug 11, 5:19 AM PDT · 16113 days ago · -2 km deep · 67 km away
44. 3.28 km SE of Janesville, CaliforniaSat, Aug 14, 3:37 AM PDT · 16110 days ago · 14 km deep · 80 km away
45. 2.79 km SW of Prattville, CaliforniaSun, Aug 15, 7:34 AM PDT · 16109 days ago · 5 km deep · 19 km away
46. 1.99 km SSW of Lake Almanor West, CaliforniaSun, Aug 15, 8:49 AM PDT · 16109 days ago · 7 km deep · 18 km away

Before

1. 2.23 km N of Lake Almanor West, CaliforniaSun, Jun 13, 8:30 AM PDT · 16172 days ago · 8 km deep · 17 km away
2. 2.18 km W of Chester, CaliforniaSun, Jun 13, 2:42 AM PDT · 16173 days ago · 2 km deep · 5 km away
3. 2.57 km E of Keddie, CaliforniaSat, Jun 12, 12:16 AM PDT · 16174 days ago · 5 km deep · 54 km away
4. 1.65 km E of Paynes Creek, CaliforniaThu, Jun 10, 1:44 AM PDT · 16176 days ago · 3 km deep · 39 km away
5. 1.62 km ENE of Oroville, CaliforniaSun, Jun 6, 2:26 AM PDT · 16180 days ago · 9 km deep · 86 km away
6. 3.22 km E of Oroville, CaliforniaSun, Jun 6, 12:02 AM PDT · 16180 days ago · 9 km deep · 86 km away
7. 3.02 km E of Oroville, CaliforniaSun, Jun 6, 12:00 AM PDT · 16180 days ago · 9 km deep · 86 km away
8. 3.12 km E of Oroville, CaliforniaSun, Jun 6, 12:00 AM PDT · 16180 days ago · 9 km deep · 86 km away
9. 1.66 km NW of Anderson, CaliforniaThu, Jun 3, 4:17 AM PDT · 16182 days ago · 2 km deep · 84 km away
10. 2.313 km N of Rancho Tehama Reserve, CaliforniaWed, Jun 2, 7:55 PM PDT · 16183 days ago · -1 km deep · 89 km away
11. 2.117 km WSW of Chester, CaliforniaTue, Jun 1, 2:28 PM PDT · 16184 days ago · 4 km deep · 6 km away
12. 2.113 km W of La Porte, CaliforniaTue, Jun 1, 1:43 PM PDT · 16184 days ago · 1 km deep · 70 km away
13. 1.93 km NE of Clipper Mills, CaliforniaMon, May 31, 11:12 AM PDT · 16185 days ago · 2 km deep · 84 km away
14. 2.31 km SE of Palo Cedro, CaliforniaSun, May 30, 2:12 PM PDT · 16186 days ago · 4 km deep · 77 km away
15. 1.76 km SSW of Whitehawk, CaliforniaSat, May 29, 9:26 PM PDT · 16187 days ago · 5 km deep · 98 km away
16. 2.36 km SSW of Whitehawk, CaliforniaFri, May 28, 7:57 PM PDT · 16188 days ago · 5 km deep · 96 km away
17. 1.95 km SSW of Whitehawk, CaliforniaFri, May 28, 5:18 PM PDT · 16188 days ago · 7 km deep · 97 km away
18. 2.8Northern CaliforniaThu, May 27, 9:59 PM PDT · 16189 days ago · 8 km deep · 100 km away
19. 2.115 km NNE of Shingletown, CaliforniaThu, May 27, 9:36 PM PDT · 16189 days ago · 7 km deep · 51 km away
20. 1.717 km NE of Mineral, CaliforniaTue, May 25, 7:56 AM PDT · 16191 days ago · 4 km deep · 20 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1075438. Read Tue, Sep 22, 2026, 9:38 PM UTC.