M4.0 earthquake 2 km N of Cromberg, California

Magnitude

4.0 (ml), light

Local time

Thu, Feb 18, 1982, 8:53 PM PST

UTC

1982-02-19 04:53:15 UTC

Depth

1.2 km (0.7 mi), shallow

Epicenter

39.879° N, 120.692° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.9 km horizontally, 1.6 km in depth

Depth from

From location

Station coverage gap

111°

Stations used

31

• Graeagle, CaliforniaPopulation 737. Forecast14 kmNNW
• Susanville, CaliforniaPopulation 15,247. Forecast60 kmS
• Reno, NevadaPopulation 264,165. Forecast85 kmWNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast683 kmNNW

After

1. 2.15 km S of Spring Garden, CaliforniaThu, Feb 18, 9:09 PM PST · 16295 days ago · 23 km deep · 10 km away
2. 2.23 km NNW of Cromberg, CaliforniaFri, Feb 19, 1:28 AM PST · 16295 days ago · 5 km deep · 1 km away
3. 2.07 km NW of Chester, CaliforniaWed, Feb 24, 5:07 PM PST · 16289 days ago · 6 km deep · 74 km away
4. 1.911 km SW of Kingvale, CaliforniaSat, Feb 27, 1:38 AM PST · 16287 days ago · 13 km deep · 72 km away
5. 2.19 km NE of Soda Springs, CaliforniaTue, Mar 2, 3:32 AM PST · 16283 days ago · 20 km deep · 66 km away
6. 2.85 km ENE of Soda Springs, CaliforniaTue, Mar 2, 3:34 AM PST · 16283 days ago · 18 km deep · 67 km away
7. 1.87 km SSW of Sierra City, CaliforniaTue, Mar 2, 4:12 AM PST · 16283 days ago · 16 km deep · 42 km away
8. 3.14 km SW of Canyondam, CaliforniaThu, Mar 4, 12:58 PM PST · 16281 days ago · 3 km deep · 46 km away
9. 2.07 km SE of La Porte, CaliforniaFri, Mar 5, 9:13 AM PST · 16280 days ago · 5 km deep · 33 km away
10. 2.81 km SE of Janesville, CaliforniaSat, Mar 6, 1:49 AM PST · 16280 days ago · -1 km deep · 48 km away
11. 2.511 km SW of Kingvale, CaliforniaSat, Mar 6, 2:21 PM PST · 16279 days ago · 44 km deep · 70 km away
12. 2.011 km NE of Soda Springs, CaliforniaSat, Mar 6, 7:06 PM PST · 16279 days ago · 4 km deep · 62 km away
13. 2.66 km SE of Palermo, CaliforniaSun, Mar 7, 1:53 AM PST · 16279 days ago · 6 km deep · 86 km away
14. 1.55 km ESE of Palermo, CaliforniaSun, Mar 7, 1:55 AM PST · 16279 days ago · 8 km deep · 86 km away
15. 1.7Northern CaliforniaSun, Mar 7, 8:12 PM PST · 16278 days ago · 1 km deep · 96 km away
16. 2.68 km NW of Truckee, CaliforniaMon, Mar 8, 3:01 PM PST · 16277 days ago · 9 km deep · 66 km away
17. 1.710 km N of Truckee, CaliforniaTue, Mar 9, 3:01 PM PST · 16276 days ago · 9 km deep · 66 km away
18. 2.88 km WSW of Chester, CaliforniaMon, Mar 22, 12:11 AM PST · 16264 days ago · 2 km deep · 70 km away
19. 1.67 km WNW of Chester, CaliforniaMon, Mar 22, 5:48 PM PST · 16263 days ago · 3 km deep · 73 km away
20. 1.93 km SE of Greenhorn, CaliforniaFri, Mar 26, 3:16 AM PST · 16259 days ago · 5 km deep · 2 km away
21. 1.97 km SSW of Sierra City, CaliforniaFri, Mar 26, 8:03 AM PST · 16259 days ago · 24 km deep · 42 km away
22. 1.716 km NE of Mineral, CaliforniaSat, Mar 27, 3:37 AM PST · 16258 days ago · 3 km deep · 94 km away
23. 1.816 km NE of Mineral, CaliforniaSat, Mar 27, 7:05 PM PST · 16258 days ago · 2 km deep · 94 km away
24. 1.915 km NNE of Mineral, CaliforniaSat, Mar 27, 11:16 PM PST · 16258 days ago · 0 km deep · 94 km away
25. 2.38 km NW of Plumas Eureka (historical), CaliforniaSun, Mar 28, 2:34 PM PST · 16257 days ago · 1 km deep · 12 km away
26. 1.614 km NNE of Mineral, CaliforniaMon, Mar 29, 7:58 AM PST · 16256 days ago · 0 km deep · 96 km away
27. 1.615 km NNE of Mineral, CaliforniaMon, Mar 29, 10:34 AM PST · 16256 days ago · 3 km deep · 97 km away
28. 2.54 km WSW of Paradise, CaliforniaMon, Mar 29, 12:06 PM PST · 16256 days ago · 20 km deep · 85 km away
29. 1.812 km NE of Mineral, CaliforniaThu, Apr 1, 3:47 PM PST · 16253 days ago · 4 km deep · 93 km away
30. 2.45 km NNW of Chester, CaliforniaFri, Apr 2, 5:48 PM PST · 16252 days ago · 17 km deep · 71 km away
31. 2.120 km S of Old Station, CaliforniaMon, Apr 5, 1:31 PM PST · 16249 days ago · 12 km deep · 93 km away
32. 2.54 km ESE of East Quincy, CaliforniaTue, Apr 6, 3:18 PM PST · 16248 days ago · 2 km deep · 14 km away
33. 2.014 km E of Mineral, CaliforniaThu, Apr 8, 4:55 PM PST · 16246 days ago · 9 km deep · 81 km away
34. 1.712 km WNW of Chester, CaliforniaFri, Apr 9, 5:01 PM PST · 16245 days ago · 4 km deep · 78 km away
35. 1.610 km WNW of Chester, CaliforniaFri, Apr 9, 5:02 PM PST · 16245 days ago · 1 km deep · 76 km away
36. 2.55 km W of Bangor, CaliforniaTue, Apr 13, 7:17 AM PST · 16241 days ago · 3 km deep · 86 km away
37. 1.816 km NNE of Mineral, CaliforniaTue, Apr 13, 6:27 PM PST · 16241 days ago · 1 km deep · 95 km away
38. 2.012 km N of Mineral, CaliforniaThu, Apr 15, 7:56 AM PST · 16239 days ago · 19 km deep · 100 km away
39. 1.811 km W of Chester, CaliforniaThu, Apr 15, 2:38 PM PST · 16239 days ago · 4 km deep · 74 km away
40. 1.711 km ESE of Mineral, CaliforniaSat, Apr 17, 4:04 PM PST · 16237 days ago · 6 km deep · 82 km away
41. 2.38 km WSW of Lake Almanor West, CaliforniaSun, Apr 18, 7:05 PM PST · 16236 days ago · 2 km deep · 62 km away

Before

1. 2.21 km NE of Kingvale, CaliforniaTue, Feb 16, 6:58 PM PST · 16297 days ago · 4 km deep · 66 km away
2. 1.51 km NW of Chico, CaliforniaMon, Feb 15, 1:03 AM PST · 16299 days ago · 16 km deep · 100 km away
3. 2.011 km NW of Truckee, CaliforniaThu, Feb 11, 9:16 AM PST · 16302 days ago · 5 km deep · 64 km away
4. 1.615 km NNE of Mineral, CaliforniaWed, Feb 10, 7:31 AM PST · 16303 days ago · 2 km deep · 97 km away
5. 1.911 km SW of Butte Meadows, CaliforniaMon, Feb 8, 4:14 PM PST · 16305 days ago · 7 km deep · 82 km away
6. 2.010 km NW of Truckee, CaliforniaMon, Feb 8, 12:29 PM PST · 16305 days ago · 4 km deep · 65 km away
7. 2.19 km NW of Truckee, CaliforniaMon, Feb 8, 1:36 AM PST · 16306 days ago · 15 km deep · 66 km away
8. 2.210 km NW of Truckee, CaliforniaSun, Feb 7, 11:03 PM PST · 16306 days ago · 10 km deep · 66 km away
9. 2.211 km NE of Soda Springs, CaliforniaSun, Feb 7, 11:02 PM PST · 16306 days ago · 4 km deep · 64 km away
10. 1.513 km NNE of Mineral, CaliforniaSun, Feb 7, 2:34 AM PST · 16306 days ago · 2 km deep · 98 km away
11. 1.73 km SSE of Palermo, CaliforniaSat, Feb 6, 9:52 PM PST · 16307 days ago · 5 km deep · 88 km away
12. 1.99 km WSW of Plumas Eureka (historical), CaliforniaWed, Feb 3, 1:06 PM PST · 16310 days ago · 5 km deep · 21 km away
13. 1.711 km S of Sierraville, CaliforniaTue, Feb 2, 12:24 AM PST · 16312 days ago · 0 km deep · 52 km away
14. 1.96 km SE of Belden, CaliforniaMon, Feb 1, 1:09 AM PST · 16313 days ago · 5 km deep · 43 km away
15. 2.64 km WSW of Susanville, CaliforniaSun, Jan 31, 6:09 PM PST · 16313 days ago · -2 km deep · 59 km away
16. 2.04 km WSW of Belden, CaliforniaSun, Jan 31, 4:52 AM PST · 16313 days ago · 4 km deep · 53 km away
17. 2.88 km W of Janesville, CaliforniaFri, Jan 29, 8:25 AM PST · 16315 days ago · 3 km deep · 48 km away
18. 1.516 km NNW of Chester, CaliforniaThu, Jan 28, 4:33 PM PST · 16316 days ago · 0 km deep · 82 km away
19. 1.613 km SSE of Mineral, CaliforniaThu, Jan 28, 12:47 PM PST · 16316 days ago · 24 km deep · 82 km away
20. 1.913 km NNE of Mineral, CaliforniaThu, Jan 28, 1:36 AM PST · 16317 days ago · 3 km deep · 94 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1072268 (also filed as usp0001jq1). Read Wed, Sep 30, 2026, 9:44 PM UTC.