M1.8 earthquake 25km S of Lompoc, CA

Magnitude

1.8 (mh), micro

Local time

Thu, Dec 10, 1981, 11:42 AM PST

UTC

1981-12-10 19:42:23 UTC

Depth

-0.5 km (-0.3 mi), shallow

Epicenter

34.415° N, 120.457° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.9 km horizontally, 2.6 km in depth

Depth from

From location

Station coverage gap

204°, poorly surrounded by stations

Stations used

9

• Lompoc, CaliforniaPopulation 44,164. Forecast25 kmS
• Santa Maria, CaliforniaPopulation 105,093. Forecast60 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast207 kmWNW

After

1. 2.228 km WSW of Guadalupe, CaliforniaSat, Dec 12, 5:25 AM PST · 16361 days ago · 5 km deep · 61 km away
2. 2.44km S of Santa Barbara, CAWed, Dec 16, 5:31 AM PST · 16357 days ago · 13 km deep · 70 km away
3. 2.112 km WSW of Callender, CaliforniaThu, Dec 24, 12:09 PM PST · 16349 days ago · 0 km deep · 71 km away
4. 1.82 km SSW of Edna, CaliforniaMon, Dec 28, 9:09 AM PST · 16345 days ago · 0 km deep · 86 km away
5. 1.810km NNW of Santa Barbara, CATue, Dec 29, 5:29 AM PST · 16344 days ago · -1 km deep · 66 km away
6. 1.817 km E of Edna, CaliforniaTue, Dec 29, 3:41 PM PST · 16343 days ago · 8 km deep · 91 km away
7. 1.918km NNE of Santa Cruz Is. (E end), CATue, Dec 29, 9:10 PM PST · 16343 days ago · 9 km deep · 99 km away
8. 2.018km WSW of Ventura, CAThu, Dec 31, 6:15 AM PST · 16342 days ago · 11 km deep · 99 km away
9. 1.617km WSW of Ventura, CAThu, Dec 31, 12:51 PM PST · 16342 days ago · 3 km deep · 99 km away
10. 1.920km WSW of Ventura, CAThu, Dec 31, 7:37 PM PST · 16341 days ago · 5 km deep · 97 km away
11. 2.018km WSW of Ventura, CAThu, Dec 31, 7:45 PM PST · 16341 days ago · 5 km deep · 99 km away
12. 2.33km S of Santa Barbara, CAMon, Jan 4, 4:03 AM PST · 16338 days ago · 5 km deep · 69 km away
13. 2.118km SSE of Carpinteria, CATue, Jan 12, 12:34 AM PST · 16330 days ago · 5 km deep · 94 km away
14. 2.932 km WSW of Guadalupe, CaliforniaTue, Jan 12, 11:47 AM PST · 16330 days ago · 2 km deep · 63 km away
15. 2.316 km WSW of Callender, CaliforniaWed, Jan 13, 8:52 AM PST · 16329 days ago · 8 km deep · 72 km away
16. 2.42km SE of Goleta, CAMon, Jan 18, 10:37 PM PST · 16323 days ago · 2 km deep · 59 km away
17. 3.017km SSE of Santa Barbara, CAWed, Jan 20, 1:48 PM PST · 16322 days ago · 5 km deep · 76 km away
18. 2.719km WSW of Ventura, CAWed, Jan 20, 3:46 PM PST · 16321 days ago · 5 km deep · 97 km away
19. 3.21 km S of Oceano, CaliforniaSat, Jan 23, 3:53 AM PST · 16319 days ago · 0 km deep · 75 km away
20. 2.120km SSE of Carpinteria, CAMon, Jan 25, 2:50 PM PST · 16317 days ago · 5 km deep · 95 km away
21. 2.515km NNW of Goleta, CASun, Jan 31, 10:01 PM PST · 16310 days ago · 5 km deep · 55 km away
22. 2.67km NE of Carpinteria, CAMon, Feb 1, 12:03 PM PST · 16310 days ago · 21 km deep · 91 km away
23. 2.06 km SE of Los Osos, CaliforniaFri, Feb 5, 1:36 PM PST · 16306 days ago · 3 km deep · 99 km away

Before

1. 1.518km WSW of Ventura, CASat, Dec 5, 9:37 PM PST · 16367 days ago · 4 km deep · 99 km away
2. 2.315 km W of Guadalupe, CaliforniaFri, Nov 27, 1:09 PM PST · 16376 days ago · 1 km deep · 65 km away
3. 2.06km SSE of Santa Barbara, CAWed, Nov 25, 6:44 PM PST · 16377 days ago · 1 km deep · 72 km away
4. 2.037km SSW of Lompoc, CAWed, Nov 25, 5:00 AM PST · 16378 days ago · 5 km deep · 15 km away
5. 1.56km SSE of Santa Barbara, CAWed, Nov 18, 1:46 AM PST · 16385 days ago · 1 km deep · 71 km away
6. 1.57km SSE of Santa Barbara, CAWed, Nov 18, 1:40 AM PST · 16385 days ago · 1 km deep · 72 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci102990. Read Mon, Sep 28, 2026, 10:29 AM UTC.