M2.4 earthquake 18km NNW of Grapevine, CA

Magnitude

2.4 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Mar 20, 1978, 6:02 AM PST

UTC

1978-03-20 14:02:37 UTC

Depth

5.7 km (3.5 mi), shallow

Epicenter

35.082° N, 119.025° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.5 km horizontally, 18.5 km in depth

Depth from

From location

Station coverage gap

101°

Stations used

11

• Weedpatch, CaliforniaPopulation 2,658. Forecast20 kmSSW
• Lamont, CaliforniaPopulation 15,120. Forecast22 kmSSW
• Bakersfield, CaliforniaPopulation 373,640. Forecast32 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast135 kmNNW

After

1. 1.716km N of Pine Mountain Club, CAMon, Mar 20, 8:12 AM PST · 17729 days ago · 14 km deep · 16 km away
2. 1.812km ESE of Piru, CAWed, Mar 22, 10:48 AM PST · 17726 days ago · 13 km deep · 84 km away
3. 2.112km ESE of Piru, CAWed, Mar 22, 3:43 PM PST · 17726 days ago · 14 km deep · 85 km away
4. 2.73km SW of Lamont, CAWed, Mar 22, 10:29 PM PST · 17726 days ago · 7 km deep · 19 km away
5. 2.27km E of Santa Clarita, CAThu, Mar 23, 3:41 AM PST · 17726 days ago · 8 km deep · 92 km away
6. 1.54km N of Santa Clarita, CAFri, Mar 24, 2:58 AM PST · 17725 days ago · 19 km deep · 85 km away
7. 1.919km SE of Bodfish, CASun, Mar 26, 7:32 AM PST · 17723 days ago · 5 km deep · 74 km away
8. 1.729km ENE of Santa Ynez, CASun, Mar 26, 10:38 AM PST · 17722 days ago · 11 km deep · 80 km away
9. 1.511km WSW of Grapevine, CAMon, Mar 27, 2:35 PM PST · 17721 days ago · 16 km deep · 20 km away
10. 2.617km SE of Arvin, CAWed, Mar 29, 5:21 PM PST · 17719 days ago · 6 km deep · 32 km away
11. 2.320km SSE of Bodfish, CAThu, Mar 30, 10:25 PM PST · 17718 days ago · 6 km deep · 66 km away
12. 1.81km NE of Frazier Park, CAFri, Mar 31, 3:23 PM PST · 17717 days ago · 12 km deep · 29 km away
13. 2.510km N of Ojai, CASun, Apr 2, 10:19 PM PST · 17715 days ago · 0 km deep · 64 km away
14. 1.816km SSW of Neenach, CATue, Apr 4, 10:08 AM PST · 17714 days ago · 12 km deep · 61 km away
15. 2.712km ESE of Piru, CATue, Apr 4, 4:00 PM PST · 17713 days ago · 15 km deep · 85 km away
16. 1.710km ESE of Piru, CATue, Apr 4, 4:04 PM PST · 17713 days ago · 25 km deep · 85 km away
17. 2.17km SE of Santa Paula, CASat, Apr 8, 6:16 AM PST · 17710 days ago · 5 km deep · 86 km away
18. 3.125km SSW of Bodfish, CASun, Apr 9, 8:00 AM PST · 17709 days ago · 1 km deep · 50 km away
19. 1.915km N of Castaic, CATue, Apr 11, 1:52 PM PST · 17706 days ago · 14 km deep · 62 km away
20. 1.716km N of Castaic, CATue, Apr 11, 5:33 PM PST · 17706 days ago · 14 km deep · 61 km away
21. 1.722km NW of Tehachapi, CATue, Apr 11, 7:08 PM PST · 17706 days ago · 2 km deep · 46 km away
22. 1.712km ESE of Piru, CAWed, Apr 12, 4:31 AM PST · 17706 days ago · 19 km deep · 85 km away
23. 1.816km SSW of Neenach, CAWed, Apr 12, 5:54 AM PST · 17706 days ago · 12 km deep · 61 km away
24. 2.618km NNW of Tehachapi, CAThu, Apr 13, 4:55 AM PST · 17705 days ago · 5 km deep · 48 km away
25. 3.129km SW of Alpaugh, CAThu, Apr 13, 10:17 PM PST · 17704 days ago · 6 km deep · 94 km away
26. 3.111km NE of Simi Valley, CASat, Apr 15, 4:38 AM PST · 17703 days ago · 15 km deep · 87 km away
27. 1.725km N of Tehachapi, CASun, Apr 16, 2:17 PM PST · 17701 days ago · 0 km deep · 61 km away
28. 1.818km NNW of Fillmore, CAMon, Apr 17, 4:50 PM PST · 17700 days ago · 21 km deep · 59 km away
29. 1.718km NNW of California City, CAThu, Apr 20, 1:27 PM PST · 17697 days ago · 6 km deep · 94 km away
30. 1.66km NNE of Grapevine, CAFri, Apr 21, 5:17 PM PST · 17696 days ago · 18 km deep · 14 km away
31. 1.716km S of Arvin, CASun, Apr 23, 3:29 AM PST · 17695 days ago · 0 km deep · 17 km away
32. 2.17km W of Wofford Heights, CAMon, Apr 24, 1:51 PM PST · 17693 days ago · 11 km deep · 83 km away
33. 2.023km ENE of Arvin, CATue, Apr 25, 4:15 AM PST · 17693 days ago · 4 km deep · 45 km away
34. 2.38km NE of Santa Clarita, CAThu, Apr 27, 12:54 PM PST · 17690 days ago · 13 km deep · 88 km away
35. 2.29km WSW of Bodfish, CAFri, Apr 28, 10:48 AM PST · 17689 days ago · 6 km deep · 66 km away
36. 1.67km ENE of Santa Clarita, CASat, Apr 29, 8:10 AM PST · 17689 days ago · 14 km deep · 89 km away
37. 1.76km SSE of Bakersfield, CASat, Apr 29, 4:05 PM PST · 17688 days ago · 6 km deep · 25 km away
38. 2.711km W of Delano, CAMon, May 1, 4:53 AM PDT · 17687 days ago · 6 km deep · 83 km away
39. 2.223km SW of Maricopa, CAThu, May 4, 3:31 PM PDT · 17683 days ago · 15 km deep · 54 km away
40. 1.918km NNW of Tehachapi, CASat, May 6, 6:10 PM PDT · 17681 days ago · 4 km deep · 50 km away
41. 2.06km ESE of Wofford Heights, CASun, May 7, 6:31 PM PDT · 17680 days ago · 7 km deep · 89 km away
42. 2.17km ESE of Wofford Heights, CASun, May 7, 6:34 PM PDT · 17680 days ago · 6 km deep · 88 km away
43. 1.710km ESE of Wofford Heights, CASun, May 7, 10:33 PM PDT · 17680 days ago · 6 km deep · 89 km away
44. 1.616km NNW of Grapevine, CAMon, May 8, 2:07 AM PDT · 17680 days ago · 6 km deep · 1 km away
45. 1.88km NW of Fillmore, CAWed, May 10, 12:36 PM PDT · 17677 days ago · 0 km deep · 71 km away
46. 2.12km NNW of Simi Valley, CATue, May 16, 1:33 AM PDT · 17672 days ago · 11 km deep · 92 km away
47. 2.118km NW of Tehachapi, CATue, May 16, 9:33 AM PDT · 17672 days ago · 5 km deep · 45 km away
48. 2.023km ENE of Arvin, CAFri, May 19, 12:49 AM PDT · 17669 days ago · 6 km deep · 45 km away

Before

1. 1.621km N of Tehachapi, CAMon, Mar 20, 12:30 AM PST · 17729 days ago · 6 km deep · 56 km away
2. 2.93km SE of Frazier Park, CASat, Mar 18, 6:29 PM PST · 17730 days ago · 4 km deep · 33 km away
3. 2.530km SW of Alpaugh, CASat, Mar 18, 6:19 AM PST · 17731 days ago · 6 km deep · 92 km away
4. 1.824km NNW of Tehachapi, CASat, Mar 18, 1:45 AM PST · 17731 days ago · 3 km deep · 55 km away
5. 1.724km NNW of Tehachapi, CASat, Mar 18, 1:24 AM PST · 17731 days ago · 6 km deep · 54 km away
6. 3.522km NNW of Tehachapi, CASat, Mar 18, 12:20 AM PST · 17731 days ago · 0 km deep · 54 km away
7. 2.521km N of Tehachapi, CASat, Mar 18, 12:20 AM PST · 17731 days ago · 1 km deep · 55 km away
8. 1.99km SSE of Shafter, CAWed, Mar 15, 1:32 PM PST · 17733 days ago · 6 km deep · 43 km away
9. 1.77km E of Santa Clarita, CAWed, Mar 15, 12:19 PM PST · 17733 days ago · 12 km deep · 93 km away
10. 2.612km WSW of Grapevine, CAMon, Mar 13, 10:32 PM PST · 17735 days ago · 13 km deep · 18 km away
11. 1.613km N of Pine Mountain Club, CAMon, Mar 13, 11:54 AM PST · 17735 days ago · 4 km deep · 17 km away
12. 2.56km ENE of Shafter, CAFri, Mar 10, 11:47 AM PST · 17738 days ago · 6 km deep · 51 km away
13. 2.67km NNE of Santa Clarita, CAFri, Mar 10, 12:33 AM PST · 17739 days ago · 13 km deep · 85 km away
14. 2.16km SSE of Shafter, CAThu, Mar 9, 1:25 PM PST · 17739 days ago · 6 km deep · 46 km away
15. 2.010km SSE of Tehachapi, CATue, Mar 7, 9:31 PM PST · 17741 days ago · 3 km deep · 55 km away
16. 1.65km ESE of Santa Paula, CATue, Mar 7, 8:40 PM PST · 17741 days ago · 20 km deep · 84 km away
17. 1.917km NE of Lamont, CATue, Mar 7, 9:46 AM PST · 17742 days ago · 6 km deep · 39 km away
18. 2.014km N of Grapevine, CAMon, Mar 6, 5:22 AM PST · 17743 days ago · 11 km deep · 10 km away
19. 2.324km NE of Arvin, CASat, Mar 4, 10:27 AM PST · 17745 days ago · 6 km deep · 47 km away
20. 1.514km N of Pine Mountain Club, CAFri, Mar 3, 3:30 PM PST · 17745 days ago · 6 km deep · 16 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3338224. Read Sat, Oct 3, 2026, 6:07 AM UTC.