M3.5 earthquake 5km NW of Grapevine, CA

Magnitude

3.5 (ML, local (Richter)), minor

Magnitude from

Southern California Seismic Network

Local time

Wed, Oct 13, 1971, 9:21 AM PDT

UTC

1971-10-13 16:21:05 UTC

Depth

6.0 km (3.7 mi), shallow

Epicenter

34.973° N, 118.977° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.6 km horizontally, 31.6 km in depth

Magnitude uncertainty

±0.15

Depth from

Operator assigned

Station coverage gap

134°

Stations used

11

• Frazier Park, CaliforniaPopulation 2,691. Forecast17 kmN
• Arvin, CaliforniaPopulation 20,876. Forecast30 kmSSW
• Bakersfield, CaliforniaPopulation 373,640. Forecast45 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast122 kmNNW

After

1. 2.53km ESE of Santa Clarita, CAMon, Oct 18, 10:49 PM PDT · 20073 days ago · 10 km deep · 78 km away
2. 2.74km NNE of Granada Hills, CATue, Oct 19, 3:18 PM PDT · 20073 days ago · 2 km deep · 87 km away
3. 2.43km E of Santa Clarita, CAThu, Oct 21, 4:05 AM PDT · 20071 days ago · 3 km deep · 77 km away
4. 2.510km E of Santa Clarita, CAFri, Oct 22, 6:29 AM PDT · 20070 days ago · 9 km deep · 82 km away
5. 2.82km NNW of Frazier Park, CASat, Oct 23, 1:57 AM PDT · 20069 days ago · 0 km deep · 15 km away
6. 3.06km SE of Wofford Heights, CASun, Oct 24, 5:08 AM PDT · 20068 days ago · 11 km deep · 93 km away
7. 2.87km N of Granada Hills, CAMon, Oct 25, 11:39 AM PDT · 20067 days ago · 1 km deep · 84 km away
8. 2.64km NNE of Granada Hills, CATue, Oct 26, 7:38 PM PDT · 20066 days ago · 0 km deep · 87 km away
9. 2.58km NNE of Pacoima, CAThu, Oct 28, 2:17 AM PDT · 20064 days ago · 2 km deep · 86 km away
10. 2.46km WSW of Calabasas, CAFri, Oct 29, 9:16 PM PDT · 20062 days ago · 6 km deep · 96 km away
11. 2.42km NNW of Northridge, CASat, Oct 30, 1:17 PM PDT · 20062 days ago · 14 km deep · 89 km away
12. 3.312km ESE of Wofford Heights, CASat, Oct 30, 8:08 PM PDT · 20061 days ago · 0 km deep · 96 km away
13. 2.27km ESE of Santa Clarita, CASun, Oct 31, 8:42 PM PST · 20060 days ago · 0 km deep · 82 km away
14. 2.09km SE of Santa Clarita, CAMon, Nov 1, 2:15 AM PST · 20060 days ago · 2 km deep · 84 km away
15. 2.65km NNW of Pacoima, CAThu, Nov 4, 12:22 AM PST · 20057 days ago · 1 km deep · 86 km away
16. 2.58km N of Pacoima, CAThu, Nov 4, 1:56 AM PST · 20057 days ago · 0 km deep · 85 km away
17. 3.09km W of Agua Dulce, CAThu, Nov 4, 11:17 AM PST · 20057 days ago · 10 km deep · 72 km away
18. 3.318km NNW of Buttonwillow, CASun, Nov 7, 6:03 AM PST · 20054 days ago · 6 km deep · 83 km away
19. 2.56km NE of Tehachapi, CAThu, Nov 11, 3:25 PM PST · 20050 days ago · 6 km deep · 57 km away
20. 2.76km NNE of Sunland, CASat, Nov 13, 8:07 AM PST · 20048 days ago · 5 km deep · 98 km away
21. 2.520km ESE of Bodfish, CASun, Nov 14, 3:51 AM PST · 20047 days ago · 0 km deep · 86 km away
22. 3.114km NW of Grapevine, CAMon, Nov 15, 3:36 PM PST · 20046 days ago · 6 km deep · 8 km away
23. 2.79km E of Santa Clarita, CATue, Nov 16, 8:00 AM PST · 20045 days ago · 1 km deep · 80 km away
24. 3.04km E of Santa Clarita, CAWed, Nov 17, 5:01 AM PST · 20044 days ago · 4 km deep · 78 km away
25. 2.58km N of Granada Hills, CAThu, Nov 18, 5:49 AM PST · 20043 days ago · 1 km deep · 83 km away
26. 2.41km W of Sunland, CASun, Nov 21, 12:28 PM PST · 20040 days ago · 6 km deep · 100 km away
27. 2.58km NNW of Pacoima, CAMon, Nov 22, 12:05 AM PST · 20039 days ago · 3 km deep · 84 km away
28. 3.15km NE of Santa Clarita, CAWed, Nov 24, 3:19 AM PST · 20037 days ago · 2 km deep · 75 km away
29. 3.714km SE of Kernville, CAWed, Nov 24, 10:13 AM PST · 20037 days ago · 3 km deep · 99 km away
30. 2.72km NE of Granada Hills, CASat, Nov 27, 6:13 PM PST · 20034 days ago · 2 km deep · 89 km away
31. 3.03km ESE of Santa Clarita, CAThu, Dec 2, 7:04 PM PST · 20028 days ago · 11 km deep · 78 km away
32. 3.126km SSW of Bodfish, CAMon, Dec 6, 10:43 PM PST · 20024 days ago · 7 km deep · 56 km away
33. 2.79km NE of Santa Clarita, CAFri, Dec 10, 9:48 PM PST · 20020 days ago · 6 km deep · 73 km away

Before

1. 2.98km NW of Grapevine, CAWed, Oct 13, 9:17 AM PDT · 20079 days ago · 6 km deep · 3 km away
2. 2.86km N of Pacoima, CATue, Oct 12, 6:43 AM PDT · 20080 days ago · 0 km deep · 86 km away
3. 2.812km NNE of Lake View Terrace, CAMon, Oct 11, 8:38 AM PDT · 20081 days ago · 0 km deep · 89 km away
4. 2.68km NNE of Sunland, CAMon, Oct 11, 6:00 AM PDT · 20081 days ago · 4 km deep · 96 km away
5. 3.110km SE of Wofford Heights, CASat, Oct 2, 2:25 PM PDT · 20090 days ago · 0 km deep · 94 km away
6. 2.72km ENE of Canoga Park, CAThu, Sep 30, 4:37 PM PDT · 20092 days ago · 3 km deep · 93 km away
7. 3.012km W of Port Hueneme, CAMon, Sep 27, 1:59 PM PDT · 20095 days ago · 6 km deep · 96 km away
8. 2.96km N of Sunland, CASat, Sep 25, 7:40 AM PDT · 20097 days ago · 0 km deep · 97 km away
9. 3.07km SW of Agua Dulce, CAFri, Sep 17, 1:30 AM PDT · 20105 days ago · 15 km deep · 79 km away
10. 3.124km N of Tehachapi, CAWed, Sep 15, 3:20 AM PDT · 20107 days ago · 6 km deep · 60 km away
11. 3.023km N of Tehachapi, CAWed, Sep 15, 1:50 AM PDT · 20107 days ago · 0 km deep · 62 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3321892. Read Sat, Oct 3, 2026, 2:34 PM UTC.