M1.8 earthquake 20km NW of Grapevine, CA

Magnitude

1.8 (mc), micro

Local time

Fri, Jul 31, 1981, 10:42 AM PDT

UTC

1981-07-31 17:42:49 UTC

Depth

5.3 km (3.3 mi), shallow

Epicenter

35.064° N, 119.097° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 3.9 km in depth

Depth from

From location

Station coverage gap

102°

Stations used

13

• Greenfield, CaliforniaPopulation 3,991. Forecast24 kmSSW
• Lamont, CaliforniaPopulation 15,120. Forecast27 kmSW
• Bakersfield, CaliforniaPopulation 373,640. Forecast35 kmSSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast137 kmNW

After

1. 1.910km ESE of Santa Clarita, CAFri, Jul 31, 2:30 PM PDT · 16489 days ago · 6 km deep · 98 km away
2. 1.56km W of Pine Mountain Club, CASat, Aug 1, 5:47 AM PDT · 16488 days ago · 10 km deep · 26 km away
3. 1.512km WSW of Ojai, CAMon, Aug 3, 3:48 PM PDT · 16486 days ago · 14 km deep · 76 km away
4. 1.54km NW of Frazier Park, CAMon, Aug 3, 7:02 PM PDT · 16486 days ago · 10 km deep · 26 km away
5. 1.72km SW of Kernville, CAMon, Aug 3, 10:55 PM PDT · 16486 days ago · 0 km deep · 96 km away
6. 1.515km NNE of Pine Mountain Club, CAWed, Aug 5, 9:42 PM PDT · 16484 days ago · 8 km deep · 10 km away
7. 1.78km ESE of Santa Clarita, CASat, Aug 8, 3:27 AM PDT · 16481 days ago · 7 km deep · 98 km away
8. 1.612km NW of Grapevine, CASat, Aug 8, 9:00 PM PDT · 16481 days ago · 5 km deep · 8 km away
9. 1.516km SE of Arvin, CASun, Aug 9, 10:52 AM PDT · 16480 days ago · 7 km deep · 38 km away
10. 1.618km N of Pine Mountain Club, CAMon, Aug 10, 7:49 PM PDT · 16479 days ago · 16 km deep · 8 km away
11. 2.47km W of Delano, CAWed, Aug 19, 12:22 PM PDT · 16470 days ago · 5 km deep · 80 km away
12. 2.817km NNW of Tehachapi, CAWed, Aug 19, 1:51 PM PDT · 16470 days ago · 3 km deep · 58 km away
13. 1.515km SW of Carpinteria, CAWed, Aug 19, 3:54 PM PDT · 16470 days ago · 5 km deep · 98 km away
14. 1.517km NW of Grapevine, CAFri, Aug 21, 11:01 PM PDT · 16468 days ago · 5 km deep · 4 km away
15. 2.417km SSE of Carpinteria, CASat, Aug 22, 7:21 AM PDT · 16467 days ago · 5 km deep · 97 km away
16. 2.717km SSE of Carpinteria, CASat, Aug 22, 7:47 AM PDT · 16467 days ago · 5 km deep · 97 km away
17. 1.85km NW of Frazier Park, CASat, Aug 22, 10:07 AM PDT · 16467 days ago · 7 km deep · 26 km away
18. 1.78km SSE of Arvin, CASun, Aug 23, 5:25 PM PDT · 16466 days ago · 0 km deep · 28 km away
19. 2.710km SSE of Arvin, CAMon, Aug 24, 9:40 PM PDT · 16465 days ago · 6 km deep · 31 km away
20. 2.310km ESE of Santa Clarita, CATue, Aug 25, 10:33 AM PDT · 16464 days ago · 8 km deep · 97 km away
21. 1.521km NNW of Tehachapi, CAThu, Aug 27, 3:46 PM PDT · 16462 days ago · 5 km deep · 57 km away
22. 1.66km NNW of Frazier Park, CAFri, Aug 28, 12:48 PM PDT · 16461 days ago · 3 km deep · 24 km away
23. 2.67km ENE of Santa Clarita, CASat, Aug 29, 8:05 AM PDT · 16460 days ago · 9 km deep · 92 km away
24. 2.28km N of Santa Barbara, CAMon, Aug 31, 5:06 AM PDT · 16458 days ago · 4 km deep · 84 km away
25. 1.519km SSE of Carpinteria, CASun, Sep 6, 8:37 AM PDT · 16452 days ago · 15 km deep · 98 km away
26. 2.019km SSE of Carpinteria, CASun, Sep 6, 1:06 PM PDT · 16452 days ago · 12 km deep · 99 km away
27. 1.522km NNW of Tehachapi, CASun, Sep 6, 9:05 PM PDT · 16452 days ago · 4 km deep · 57 km away
28. 1.94km SSE of Carpinteria, CASun, Sep 13, 5:29 AM PDT · 16445 days ago · 0 km deep · 86 km away
29. 1.511km SE of Tehachapi, CATue, Sep 15, 6:51 PM PDT · 16443 days ago · 5 km deep · 67 km away
30. 2.85km NE of Simi Valley, CATue, Sep 15, 9:37 PM PDT · 16443 days ago · 17 km deep · 91 km away
31. 2.02km NNE of Simi Valley, CATue, Sep 15, 10:49 PM PDT · 16443 days ago · 24 km deep · 92 km away
32. 1.515km NW of Tehachapi, CAWed, Sep 16, 7:27 AM PDT · 16442 days ago · 7 km deep · 51 km away
33. 1.722km NW of Grapevine, CAWed, Sep 16, 7:01 PM PDT · 16442 days ago · 0 km deep · 2 km away
34. 1.510km ENE of Pine Mountain Club, CAWed, Sep 16, 10:58 PM PDT · 16442 days ago · 7 km deep · 20 km away
35. 1.616km NW of Tehachapi, CASat, Sep 19, 2:25 AM PDT · 16439 days ago · 6 km deep · 52 km away
36. 1.83km WNW of Bakersfield, CASat, Sep 19, 10:42 PM PDT · 16439 days ago · 5 km deep · 34 km away
37. 2.14km NNE of Simi Valley, CASat, Sep 19, 10:45 PM PDT · 16439 days ago · 20 km deep · 91 km away
38. 2.44km NNE of Simi Valley, CASun, Sep 20, 10:27 PM PDT · 16438 days ago · 21 km deep · 92 km away
39. 1.94km SSW of Valencia, CAWed, Sep 23, 4:41 AM PDT · 16435 days ago · 14 km deep · 85 km away
40. 1.54km SW of Valencia, CAWed, Sep 23, 11:05 PM PDT · 16435 days ago · 17 km deep · 84 km away
41. 2.54km SSW of Valencia, CAFri, Sep 25, 5:18 PM PDT · 16433 days ago · 10 km deep · 85 km away
42. 1.523km WSW of Maricopa, CAFri, Sep 25, 6:39 PM PDT · 16433 days ago · 9 km deep · 49 km away
43. 1.523km NW of Grapevine, CASat, Sep 26, 7:33 PM PDT · 16432 days ago · 12 km deep · 4 km away
44. 1.95km ENE of Lamont, CASun, Sep 27, 3:45 PM PDT · 16431 days ago · 5 km deep · 32 km away
45. 1.627km SSW of Bodfish, CAMon, Sep 28, 9:57 PM PDT · 16430 days ago · 5 km deep · 57 km away

Before

1. 1.811km NNW of Grapevine, CAFri, Jul 31, 10:39 AM PDT · 16489 days ago · 3 km deep · 13 km away
2. 2.013km WSW of Ojai, CAFri, Jul 31, 3:17 AM PDT · 16489 days ago · 15 km deep · 77 km away
3. 2.218km W of Tehachapi, CATue, Jul 28, 9:05 PM PDT · 16492 days ago · 4 km deep · 42 km away
4. 1.522km ENE of Santa Ynez, CATue, Jul 28, 8:36 PM PDT · 16492 days ago · 15 km deep · 82 km away
5. 1.613km NNE of Lamont, CAMon, Jul 27, 11:14 AM PDT · 16493 days ago · 5 km deep · 41 km away
6. 2.08km WSW of Ojai, CAMon, Jul 27, 4:29 AM PDT · 16493 days ago · 11 km deep · 74 km away
7. 1.618km S of Carpinteria, CASun, Jul 26, 3:46 PM PDT · 16494 days ago · 3 km deep · 99 km away
8. 2.012km WSW of Ojai, CASun, Jul 26, 12:42 PM PDT · 16494 days ago · 11 km deep · 76 km away
9. 3.617km W of Tehachapi, CASat, Jul 25, 11:13 PM PDT · 16495 days ago · 2 km deep · 42 km away
10. 1.67km WSW of Shafter, CAFri, Jul 24, 11:53 AM PDT · 16496 days ago · 5 km deep · 51 km away
11. 1.94km NNW of Grapevine, CAThu, Jul 23, 9:36 PM PDT · 16497 days ago · 6 km deep · 17 km away
12. 1.88km ENE of Santa Clarita, CAThu, Jul 23, 9:08 PM PDT · 16497 days ago · 6 km deep · 92 km away
13. 1.723km NNW of Tehachapi, CAThu, Jul 23, 9:25 AM PDT · 16497 days ago · 5 km deep · 57 km away
14. 1.816km SW of Carpinteria, CAMon, Jul 20, 10:00 PM PDT · 16500 days ago · 10 km deep · 99 km away
15. 1.820km NW of Ojai, CAMon, Jul 20, 1:01 PM PDT · 16500 days ago · 7 km deep · 59 km away
16. 1.718km SSE of Carpinteria, CAMon, Jul 20, 9:16 AM PDT · 16500 days ago · 5 km deep · 98 km away
17. 1.55km WSW of Valencia, CASat, Jul 18, 9:08 PM PDT · 16502 days ago · 13 km deep · 83 km away
18. 1.618km N of Goleta, CASat, Jul 18, 1:54 PM PDT · 16502 days ago · -1 km deep · 84 km away
19. 1.621km NNW of Tehachapi, CASun, Jul 12, 4:41 AM PDT · 16508 days ago · 5 km deep · 56 km away
20. 1.911km SE of Gorman, CASat, Jul 11, 3:29 PM PDT · 16509 days ago · 13 km deep · 48 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci520335. Read Tue, Sep 22, 2026, 8:36 PM UTC.