M2.2 earthquake 8 km ENE of Gerber, California

Magnitude

2.2 (Md, duration), micro

Magnitude from

Northern California Seismic System

Local time

Wed, Oct 21, 1987, 2:21 AM PDT

UTC

1987-10-21 09:21:11 UTC

Depth

15.6 km (9.7 mi), shallow

Epicenter

40.092° N, 122.064° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 1.6 km in depth

Magnitude uncertainty

±0.08

Depth from

From location

Station coverage gap

171°

Stations used

13

• Gerber, CaliforniaPopulation 1,060. Forecast8 kmENE
• Red Bluff, CaliforniaPopulation 14,131. Forecast18 kmESE
• Chico, CaliforniaPopulation 121,345. Forecast45 kmNNW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast752 kmNNW

After

1. 2.510 km NW of Belden, CaliforniaWed, Oct 21, 8:05 AM PDT · 14226 days ago · 13 km deep · 61 km away
2. 1.82 km NW of Paradise, CaliforniaFri, Oct 23, 6:55 PM PDT · 14223 days ago · 17 km deep · 50 km away
3. 1.64 km ESE of Chester, CaliforniaSun, Oct 25, 12:06 PM PST · 14222 days ago · 7 km deep · 78 km away
4. 2.33 km W of Palo Cedro, CaliforniaThu, Nov 5, 3:43 AM PST · 14211 days ago · 18 km deep · 56 km away
5. 1.63 km SW of Palo Cedro, CaliforniaThu, Nov 5, 3:14 PM PST · 14210 days ago · 8 km deep · 53 km away
6. 2.42 km NNW of French Gulch, CaliforniaFri, Nov 6, 7:33 AM PST · 14210 days ago · 4 km deep · 86 km away
7. 1.75 km ENE of Nord, CaliforniaSat, Nov 7, 12:50 AM PST · 14209 days ago · 27 km deep · 35 km away
8. 1.913 km W of Chester, CaliforniaSat, Nov 7, 4:25 AM PST · 14209 days ago · 8 km deep · 61 km away
9. 2.215 km E of Lakehead, CaliforniaSat, Nov 7, 10:56 PM PST · 14208 days ago · 3 km deep · 91 km away
10. 1.54 km WNW of Belden, CaliforniaTue, Nov 10, 4:10 AM PST · 14206 days ago · 8 km deep · 66 km away
11. 2.117 km NW of Chester, CaliforniaThu, Nov 12, 10:20 AM PST · 14204 days ago · 1 km deep · 69 km away
12. 1.9Northern CaliforniaTue, Nov 17, 7:12 PM PST · 14198 days ago · 3 km deep · 61 km away
13. 2.240 km ESE of Ruth, CaliforniaSat, Nov 21, 11:28 PM PST · 14194 days ago · 7 km deep · 69 km away
14. 3.040 km ESE of Ruth, CaliforniaSun, Nov 22, 1:32 AM PST · 14194 days ago · -1 km deep · 68 km away
15. 1.69 km N of Montgomery Creek, CaliforniaMon, Nov 23, 11:12 PM PST · 14192 days ago · 12 km deep · 93 km away
16. 1.64 km NW of Montgomery Creek, CaliforniaTue, Nov 24, 4:52 PM PST · 14191 days ago · 13 km deep · 87 km away
17. 2.340 km E of Ruth, CaliforniaTue, Nov 24, 7:05 PM PST · 14191 days ago · 2 km deep · 68 km away
18. 1.88 km N of Montgomery Creek, CaliforniaTue, Nov 24, 10:09 PM PST · 14191 days ago · 15 km deep · 92 km away
19. 1.99 km N of Montgomery Creek, CaliforniaThu, Nov 26, 7:20 AM PST · 14190 days ago · 15 km deep · 93 km away
20. 2.536 km NW of Paskenta, CaliforniaThu, Nov 26, 7:48 AM PST · 14190 days ago · 4 km deep · 63 km away
21. 2.236 km SE of Ruth, CaliforniaThu, Nov 26, 9:15 AM PST · 14190 days ago · -1 km deep · 77 km away
22. 1.826 km NW of Paskenta, CaliforniaThu, Nov 26, 9:35 AM PST · 14190 days ago · 4 km deep · 62 km away
23. 1.936 km NW of Paskenta, CaliforniaThu, Nov 26, 10:08 AM PST · 14190 days ago · -1 km deep · 66 km away
24. 1.939 km E of Ruth, CaliforniaFri, Nov 27, 4:38 AM PST · 14189 days ago · 4 km deep · 70 km away
25. 1.85 km SE of Canyondam, CaliforniaSun, Nov 29, 11:45 PM PST · 14186 days ago · -1 km deep · 88 km away
26. 3.436 km NW of Paskenta, CaliforniaTue, Dec 1, 3:15 AM PST · 14185 days ago · -1 km deep · 69 km away
27. 3.739 km NW of Paskenta, CaliforniaTue, Dec 1, 6:53 AM PST · 14185 days ago · 6 km deep · 68 km away
28. 1.81 km N of Old Station, CaliforniaTue, Dec 1, 8:58 AM PST · 14185 days ago · 6 km deep · 86 km away
29. 2.435 km NW of Paskenta, CaliforniaWed, Dec 2, 3:25 PM PST · 14183 days ago · 5 km deep · 62 km away
30. 3.233 km NW of Paskenta, CaliforniaWed, Dec 2, 3:56 PM PST · 14183 days ago · -1 km deep · 65 km away
31. 3.937 km NW of Paskenta, CaliforniaWed, Dec 2, 4:00 PM PST · 14183 days ago · 0 km deep · 63 km away
32. 2.339 km ESE of Ruth, CaliforniaWed, Dec 2, 4:08 PM PST · 14183 days ago · -1 km deep · 69 km away
33. 3.438 km WNW of Rancho Tehama Reserve, CaliforniaWed, Dec 2, 4:18 PM PST · 14183 days ago · -1 km deep · 64 km away
34. 2.138 km NW of Paskenta, CaliforniaWed, Dec 2, 4:24 PM PST · 14183 days ago · -1 km deep · 68 km away
35. 2.014 km WSW of Lake Almanor West, CaliforniaThu, Dec 3, 11:50 PM PST · 14182 days ago · 6 km deep · 61 km away
36. 2.338 km NW of Paskenta, CaliforniaFri, Dec 4, 5:42 PM PST · 14181 days ago · -1 km deep · 70 km away
37. 2.03 km SSW of Palo Cedro, CaliforniaSat, Dec 5, 7:44 AM PST · 14181 days ago · 9 km deep · 52 km away
38. 2.14 km SW of Hamilton City, CaliforniaSat, Dec 5, 1:46 PM PST · 14181 days ago · 16 km deep · 42 km away
39. 1.93 km S of Nord, CaliforniaTue, Dec 8, 11:55 PM PST · 14177 days ago · 18 km deep · 39 km away
40. 2.03 km SE of Hamilton City, CaliforniaTue, Dec 8, 11:57 PM PST · 14177 days ago · 13 km deep · 42 km away
41. 2.25 km WSW of Greenville, CaliforniaMon, Dec 14, 12:02 PM PST · 14172 days ago · 0 km deep · 89 km away
42. 2.09 km NE of Chester, CaliforniaMon, Dec 14, 11:51 PM PST · 14171 days ago · -2 km deep · 83 km away
43. 2.04 km NNW of Palo Cedro, CaliforniaWed, Dec 16, 3:06 AM PST · 14170 days ago · 4 km deep · 59 km away
44. 2.116 km ENE of Willows, CaliforniaFri, Dec 18, 7:45 AM PST · 14168 days ago · 21 km deep · 59 km away
45. 2.341 km WNW of Rancho Tehama Reserve, CaliforniaFri, Dec 18, 10:18 PM PST · 14167 days ago · 4 km deep · 66 km away
46. 2.430 km W of Paskenta, CaliforniaSat, Dec 19, 1:47 AM PST · 14167 days ago · -1 km deep · 75 km away

Before

1. 2.427 km NNE of Potter Valley, CaliforniaSat, Oct 17, 3:50 AM PDT · 14230 days ago · 10 km deep · 98 km away
2. 2.28 km NE of Orland, CaliforniaSun, Oct 11, 11:39 PM PDT · 14235 days ago · 15 km deep · 33 km away
3. 2.09 km SW of Durham, CaliforniaSat, Oct 10, 6:43 AM PDT · 14237 days ago · 24 km deep · 57 km away
4. 2.012 km NNW of French Gulch, CaliforniaFri, Oct 9, 2:09 AM PDT · 14238 days ago · 4 km deep · 96 km away
5. 1.61 km SE of Oroville, CaliforniaMon, Oct 5, 10:22 AM PDT · 14242 days ago · 11 km deep · 79 km away
6. 2.511 km ENE of Bend, CaliforniaThu, Oct 1, 12:43 PM PDT · 14246 days ago · 15 km deep · 24 km away
7. 2.711 km ENE of Bend, CaliforniaThu, Oct 1, 12:43 PM PDT · 14246 days ago · 16 km deep · 24 km away
8. 3.3Northern CaliforniaSun, Sep 27, 8:35 AM PDT · 14250 days ago · 16 km deep · 95 km away
9. 2.19 km ENE of Bend, CaliforniaFri, Sep 25, 1:16 PM PDT · 14252 days ago · 19 km deep · 24 km away
10. 2.012 km ENE of Bend, CaliforniaThu, Sep 24, 10:00 PM PDT · 14252 days ago · 14 km deep · 23 km away
11. 1.513 km NE of Bend, CaliforniaThu, Sep 24, 9:59 PM PDT · 14252 days ago · 8 km deep · 26 km away
12. 1.612 km ENE of Bend, CaliforniaThu, Sep 24, 9:55 PM PDT · 14252 days ago · 11 km deep · 25 km away
13. 1.914 km NNE of Shingletown, CaliforniaThu, Sep 24, 3:59 PM PDT · 14252 days ago · 16 km deep · 62 km away
14. 2.311 km ENE of Bend, CaliforniaWed, Sep 23, 9:04 PM PDT · 14253 days ago · 16 km deep · 23 km away
15. 1.73 km ENE of Chico, CaliforniaTue, Sep 22, 10:07 PM PDT · 14254 days ago · 21 km deep · 45 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc107432. Read Fri, Oct 2, 2026, 10:01 AM UTC.