M1.7 earthquake 21km NW of Grapevine, CA

Magnitude

1.7 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Apr 11, 1977, 4:36 PM PST

UTC

1977-04-12 00:36:20 UTC

Depth

1.3 km (0.8 mi), shallow

Epicenter

35.068° N, 119.100° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.1 km horizontally, 1.7 km in depth

Depth from

From location

Station coverage gap

193°, poorly surrounded by stations

Stations used

9

• 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. 2.03km SE of Valencia, CAWed, Apr 13, 5:13 AM PST · 18070 days ago · 0 km deep · 87 km away
2. 2.27km E of Santa Clarita, CAWed, Apr 13, 3:23 PM PST · 18070 days ago · 14 km deep · 95 km away
3. 2.720km NNW of Tehachapi, CAFri, Apr 15, 3:07 PM PST · 18068 days ago · 6 km deep · 58 km away
4. 2.27km NNE of Santa Clarita, CAMon, Apr 18, 12:29 AM PST · 18065 days ago · 16 km deep · 88 km away
5. 2.227km WSW of Pine Mountain Club, CATue, Apr 19, 9:51 AM PST · 18064 days ago · 0 km deep · 46 km away
6. 1.76km SE of Simi Valley, CATue, Apr 19, 9:21 PM PST · 18063 days ago · 14 km deep · 100 km away
7. 2.54km S of Frazier Park, CAWed, Apr 20, 10:00 PM PST · 18062 days ago · 13 km deep · 34 km away
8. 1.822km SSW of Bodfish, CAFri, Apr 22, 1:17 AM PST · 18061 days ago · 6 km deep · 60 km away
9. 2.813km NNE of Simi Valley, CASat, Apr 23, 9:49 PM PST · 18059 days ago · 15 km deep · 87 km away
10. 1.511km ESE of Piru, CASat, Apr 23, 10:30 PM PST · 18059 days ago · 18 km deep · 87 km away
11. 1.510km W of Tehachapi, CASun, Apr 24, 7:29 PM PDT · 18059 days ago · 4 km deep · 50 km away
12. 2.510km E of Santa Clarita, CAThu, Apr 28, 12:28 AM PDT · 18055 days ago · 7 km deep · 97 km away
13. 2.316km SE of Bodfish, CAMon, May 2, 6:57 PM PDT · 18051 days ago · 5 km deep · 80 km away
14. 2.212km N of Grapevine, CAThu, May 5, 12:14 AM PDT · 18048 days ago · 4 km deep · 15 km away
15. 1.67km E of Santa Clarita, CAThu, May 5, 10:03 PM PDT · 18047 days ago · 7 km deep · 94 km away
16. 1.719km NW of Grapevine, CAThu, May 5, 10:41 PM PDT · 18047 days ago · 6 km deep · 2 km away
17. 2.125km S of Bodfish, CAFri, May 6, 9:46 PM PDT · 18047 days ago · 6 km deep · 66 km away
18. 1.524km S of Bodfish, CASat, May 7, 3:15 AM PDT · 18046 days ago · 6 km deep · 66 km away
19. 1.68km S of Lamont, CASat, May 7, 10:54 PM PDT · 18045 days ago · 6 km deep · 21 km away
20. 1.52km NW of Frazier Park, CASun, May 8, 3:35 AM PDT · 18045 days ago · 16 km deep · 29 km away
21. 2.225km S of Bodfish, CATue, May 10, 9:19 AM PDT · 18043 days ago · 0 km deep · 66 km away
22. 1.714km SE of Arvin, CAWed, May 11, 1:06 PM PDT · 18042 days ago · 5 km deep · 33 km away
23. 1.62km ESE of Castaic, CAWed, May 11, 7:55 PM PDT · 18042 days ago · 6 km deep · 79 km away
24. 2.11km SSE of Castaic, CAWed, May 11, 8:23 PM PDT · 18042 days ago · 3 km deep · 79 km away
25. 1.513km NNE of Ojai, CAThu, May 12, 6:25 PM PDT · 18041 days ago · 4 km deep · 57 km away
26. 1.74km NW of Grapevine, CAThu, May 12, 11:20 PM PDT · 18040 days ago · 16 km deep · 16 km away
27. 1.618km N of Pine Mountain Club, CAFri, May 13, 5:46 AM PDT · 18040 days ago · 6 km deep · 8 km away
28. 1.816km NNW of Grapevine, CASat, May 14, 11:20 AM PDT · 18039 days ago · 6 km deep · 7 km away
29. 1.98km ENE of Santa Clarita, CASat, May 14, 3:05 PM PDT · 18039 days ago · 6 km deep · 93 km away
30. 2.45km S of Lamont, CASat, May 14, 7:41 PM PDT · 18039 days ago · 6 km deep · 24 km away
31. 1.89km ESE of Santa Clarita, CASun, May 15, 5:38 AM PDT · 18038 days ago · 5 km deep · 99 km away
32. 1.77km W of Tehachapi, CAWed, May 18, 12:55 PM PDT · 18035 days ago · 3 km deep · 53 km away
33. 1.66km N of Frazier Park, CAWed, May 18, 1:27 PM PDT · 18035 days ago · 6 km deep · 26 km away
34. 2.012km ESE of Bodfish, CAWed, May 18, 2:44 PM PDT · 18035 days ago · 6 km deep · 85 km away
35. 2.014km N of Pine Mountain Club, CAFri, May 20, 6:23 AM PDT · 18033 days ago · 5 km deep · 11 km away
36. 1.610km N of Fillmore, CASun, May 22, 4:34 PM PDT · 18031 days ago · 6 km deep · 67 km away
37. 1.718km ESE of Arvin, CAMon, May 23, 1:34 AM PDT · 18030 days ago · 6 km deep · 42 km away
38. 1.722km NNW of Tehachapi, CAMon, May 23, 3:27 AM PDT · 18030 days ago · 6 km deep · 54 km away
39. 2.416km SSW of Neenach, CAMon, May 23, 8:56 PM PDT · 18030 days ago · 11 km deep · 62 km away
40. 2.33km SE of Oxnard, CAWed, May 25, 1:22 AM PDT · 18028 days ago · 12 km deep · 99 km away
41. 1.721km ENE of Grapevine, CAWed, May 25, 2:26 PM PDT · 18028 days ago · 6 km deep · 34 km away
42. 2.07km ENE of Ventura, CAFri, May 27, 1:33 AM PDT · 18026 days ago · 15 km deep · 86 km away
43. 1.720km NNE of Ojai, CASat, May 28, 8:10 PM PDT · 18025 days ago · 0 km deep · 52 km away
44. 1.818km NW of Grapevine, CAMon, May 30, 6:59 AM PDT · 18023 days ago · 0 km deep · 5 km away
45. 2.816km NW of Grapevine, CAMon, May 30, 8:15 AM PDT · 18023 days ago · 0 km deep · 6 km away
46. 2.04km E of Santa Clarita, CAMon, May 30, 3:39 PM PDT · 18023 days ago · 12 km deep · 93 km away
47. 2.711km NNE of Simi Valley, CATue, May 31, 11:55 AM PDT · 18022 days ago · 10 km deep · 87 km away
48. 2.03km W of Bodfish, CAWed, Jun 1, 8:23 PM PDT · 18021 days ago · 6 km deep · 77 km away
49. 2.54km NE of Santa Clarita, CAThu, Jun 2, 4:13 AM PDT · 18020 days ago · 13 km deep · 90 km away
50. 1.87km NE of Grapevine, CAFri, Jun 3, 2:05 PM PDT · 18019 days ago · 12 km deep · 23 km away
51. 2.321km NNW of Tehachapi, CASat, Jun 4, 8:38 AM PDT · 18018 days ago · 6 km deep · 61 km away
52. 2.39km ESE of Bodfish, CASun, Jun 5, 7:49 AM PDT · 18017 days ago · 3 km deep · 83 km away
53. 1.727km SSW of Bodfish, CAWed, Jun 8, 6:06 PM PDT · 18014 days ago · 6 km deep · 57 km away
54. 1.620km NNW of Tehachapi, CAThu, Jun 9, 4:44 AM PDT · 18013 days ago · 6 km deep · 54 km away
55. 1.56km SSW of Frazier Park, CAFri, Jun 10, 5:16 AM PDT · 18012 days ago · 12 km deep · 35 km away

Before

1. 1.615km NE of Neenach, CASat, Apr 9, 8:23 PM PST · 18074 days ago · 0 km deep · 62 km away
2. 1.622km SSW of Frazier Park, CASat, Apr 9, 3:44 PM PST · 18074 days ago · 0 km deep · 49 km away
3. 2.17km E of Santa Clarita, CASat, Apr 9, 1:01 AM PST · 18074 days ago · 10 km deep · 95 km away
4. 1.68km E of Santa Clarita, CAFri, Apr 8, 7:27 AM PST · 18075 days ago · 10 km deep · 96 km away
5. 1.716km NW of Grapevine, CAThu, Apr 7, 12:05 PM PST · 18076 days ago · 28 km deep · 5 km away
6. 1.812km ESE of Carpinteria, CAThu, Apr 7, 8:16 AM PST · 18076 days ago · 20 km deep · 82 km away
7. 1.56km SW of Santa Paula, CAWed, Apr 6, 8:11 AM PST · 18077 days ago · 0 km deep · 84 km away
8. 1.610km WSW of Grapevine, CAWed, Apr 6, 5:38 AM PST · 18077 days ago · 6 km deep · 17 km away
9. 1.610km WSW of Lake Hughes, CATue, Apr 5, 8:36 PM PST · 18078 days ago · 0 km deep · 68 km away
10. 1.618km NNW of Tehachapi, CATue, Apr 5, 7:01 PM PST · 18078 days ago · 6 km deep · 54 km away
11. 3.07km W of Tehachapi, CASun, Apr 3, 2:29 PM PST · 18080 days ago · 6 km deep · 52 km away
12. 1.712km SSE of Tehachapi, CAFri, Apr 1, 1:42 PM PST · 18082 days ago · 8 km deep · 66 km away
13. 1.922km SSE of Bodfish, CAThu, Mar 31, 10:42 AM PST · 18083 days ago · 6 km deep · 70 km away
14. 2.324km SE of Bodfish, CATue, Mar 29, 9:11 AM PST · 18085 days ago · 6 km deep · 83 km away
15. 1.616km NE of Grapevine, CATue, Mar 29, 5:31 AM PST · 18085 days ago · 6 km deep · 28 km away
16. 1.815km WSW of Ventura, CAMon, Mar 28, 1:52 AM PST · 18086 days ago · 6 km deep · 97 km away
17. 2.99km ESE of Santa Clarita, CASun, Mar 27, 1:17 PM PST · 18087 days ago · 0 km deep · 98 km away
18. 1.911km NNE of Santa Clarita, CASun, Mar 27, 8:15 AM PST · 18087 days ago · 29 km deep · 85 km away
19. 1.97km SSE of Santa Clarita, CAFri, Mar 18, 10:46 PM PST · 18095 days ago · 4 km deep · 97 km away
20. 1.87km SSE of Santa Clarita, CAThu, Mar 17, 2:38 PM PST · 18097 days ago · 1 km deep · 97 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci9978486. Read Sat, Oct 3, 2026, 4:21 PM UTC.