M3.1 earthquake 3 km WSW of Spring Garden, California

Magnitude

3.1 (ml), minor

Local time

Sat, Aug 29, 1981, 11:57 AM PDT

UTC

1981-08-29 18:57:36 UTC

Depth

0.2 km (0.1 mi), shallow

Epicenter

39.889° N, 120.825° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 9.6 km in depth

Depth from

From location

Station coverage gap

205°, poorly surrounded by stations

Stations used

34

• East Quincy, CaliforniaPopulation 2,489. Forecast8 kmSE
• Susanville, CaliforniaPopulation 15,247. Forecast60 kmSSW
• Chico, CaliforniaPopulation 121,345. Forecast88 kmENE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast688 kmNNW

After

1. 2.66 km S of Kingvale, CaliforniaMon, Aug 31, 11:34 AM PDT · 16458 days ago · 11 km deep · 78 km away
2. 2.14 km SE of Palermo, CaliforniaMon, Sep 7, 4:35 AM PDT · 16451 days ago · 6 km deep · 79 km away
3. 2.52 km ESE of Prattville, CaliforniaWed, Sep 9, 2:42 PM PDT · 16449 days ago · 2 km deep · 43 km away
4. 3.02 km ENE of Prattville, CaliforniaWed, Sep 9, 9:06 PM PDT · 16449 days ago · 12 km deep · 44 km away
5. 2.81 km ENE of Lake Almanor West, CaliforniaThu, Sep 10, 2:22 AM PDT · 16448 days ago · 2 km deep · 50 km away
6. 2.64 km SSE of Floriston, CaliforniaSat, Sep 12, 11:09 AM PDT · 16446 days ago · 14 km deep · 92 km away
7. 2.511 km NE of Cromberg, CaliforniaTue, Sep 15, 12:50 AM PDT · 16443 days ago · 5 km deep · 20 km away
8. 1.77 km SE of Mineral, CaliforniaTue, Sep 29, 8:45 AM PDT · 16429 days ago · -1 km deep · 76 km away
9. 1.53 km E of Palermo, CaliforniaThu, Oct 8, 6:19 AM PDT · 16420 days ago · 5 km deep · 77 km away
10. 2.26 km WSW of Paradise, CaliforniaMon, Oct 12, 7:17 AM PDT · 16416 days ago · 16 km deep · 75 km away
11. 1.510 km NE of Mineral, CaliforniaTue, Oct 13, 5:07 PM PDT · 16415 days ago · -2 km deep · 82 km away
12. 1.916 km ESE of Alta, CaliforniaTue, Oct 20, 12:17 PM PDT · 16408 days ago · 24 km deep · 82 km away
13. 3.110 km N of Chico, CaliforniaSat, Oct 24, 9:58 PM PDT · 16403 days ago · 22 km deep · 87 km away

Before

1. 2.011 km NE of Soda Springs, CaliforniaSat, Aug 22, 6:08 PM PDT · 16467 days ago · 12 km deep · 71 km away
2. 1.9Northern CaliforniaSat, Aug 22, 11:28 AM PDT · 16467 days ago · 3 km deep · 70 km away
3. 1.51 km E of Oroville, CaliforniaWed, Aug 19, 4:44 AM PDT · 16470 days ago · 10 km deep · 74 km away
4. 1.76 km SSE of Palermo, CaliforniaMon, Aug 17, 12:09 PM PDT · 16472 days ago · 1 km deep · 80 km away
5. 1.619 km N of Chester, CaliforniaSun, Aug 16, 11:15 PM PDT · 16472 days ago · 0 km deep · 73 km away
6. 1.710 km SE of Mineral, CaliforniaSun, Aug 16, 8:50 AM PDT · 16473 days ago · 2 km deep · 72 km away
7. 2.30 km NW of Chester, CaliforniaWed, Aug 12, 11:31 PM PDT · 16476 days ago · 2 km deep · 59 km away
8. 1.615 km NNE of Butte Meadows, CaliforniaSun, Aug 9, 4:28 AM PDT · 16480 days ago · 3 km deep · 67 km away
9. 1.6Northern CaliforniaTue, Aug 4, 3:16 PM PDT · 16485 days ago · 3 km deep · 61 km away
10. 2.02 km ESE of Chester, CaliforniaMon, Aug 3, 11:02 PM PDT · 16485 days ago · 5 km deep · 56 km away
11. 2.01 km ENE of Chester, CaliforniaMon, Aug 3, 9:17 PM PDT · 16486 days ago · 7 km deep · 57 km away
12. 2.91 km ENE of Clipper Mills, CaliforniaSat, Aug 1, 4:38 PM PDT · 16488 days ago · 8 km deep · 48 km away
13. 1.810 km NE of Chilcoot-Vinton, CaliforniaSat, Aug 1, 12:02 PM PDT · 16488 days ago · 9 km deep · 65 km away
14. 1.86 km WSW of Durham, CaliforniaSat, Aug 1, 9:26 AM PDT · 16488 days ago · 29 km deep · 94 km away

From the USGS Earthquake Hazards Program and its partner networks, event nc1067210. Read Tue, Sep 22, 2026, 4:04 PM UTC.