M1.7 earthquake 19km NW of Grapevine, CA

Magnitude

1.7 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Aug 21, 1978, 1:42 AM PDT

UTC

1978-08-21 08:42:30 UTC

Depth

14.3 km (8.9 mi), shallow

Epicenter

35.067° N, 119.067° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 1.4 km horizontally, 1.3 km in depth

Depth from

From location

Station coverage gap

228°, poorly surrounded by stations

Stations used

6

• Greenfield, CaliforniaPopulation 3,991. Forecast23 kmSSW
• Lamont, CaliforniaPopulation 15,120. Forecast26 kmSSW
• Bakersfield, CaliforniaPopulation 373,640. Forecast34 kmS
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast136 kmNNW

After

1. 1.96km SSW of Santa Barbara, CAMon, Aug 21, 6:32 AM PDT · 17573 days ago · 14 km deep · 98 km away
2. 1.78km SSW of Santa Barbara, CAMon, Aug 21, 10:17 AM PDT · 17573 days ago · 11 km deep · 100 km away
3. 1.67km SSW of Santa Barbara, CATue, Aug 22, 9:25 PM PDT · 17571 days ago · 0 km deep · 100 km away
4. 2.17km SW of Santa Barbara, CAWed, Aug 23, 2:59 AM PDT · 17571 days ago · 11 km deep · 99 km away
5. 1.96km ESE of Goleta, CAWed, Aug 23, 9:17 AM PDT · 17571 days ago · 14 km deep · 98 km away
6. 1.55km S of Santa Barbara, CAWed, Aug 23, 4:44 PM PDT · 17571 days ago · 9 km deep · 96 km away
7. 2.25km SE of Goleta, CAWed, Aug 23, 5:17 PM PDT · 17571 days ago · 12 km deep · 100 km away
8. 2.28km SW of Santa Barbara, CAWed, Aug 23, 7:36 PM PDT · 17571 days ago · 11 km deep · 100 km away
9. 2.08km WSW of Santa Barbara, CAThu, Aug 24, 6:37 AM PDT · 17570 days ago · 13 km deep · 99 km away
10. 1.513km SSE of Arvin, CASat, Aug 26, 1:00 AM PDT · 17568 days ago · 12 km deep · 29 km away
11. 1.77km SE of Goleta, CASun, Aug 27, 7:47 PM PDT · 17567 days ago · 4 km deep · 100 km away
12. 2.124km NNW of Tehachapi, CAMon, Aug 28, 11:00 PM PDT · 17565 days ago · 3 km deep · 55 km away
13. 2.88km SW of Santa Barbara, CAMon, Aug 28, 11:04 PM PDT · 17565 days ago · 14 km deep · 100 km away
14. 1.86km SW of Santa Barbara, CATue, Aug 29, 1:46 AM PDT · 17565 days ago · 3 km deep · 98 km away
15. 2.123km ENE of Arvin, CATue, Aug 29, 4:18 AM PDT · 17565 days ago · 6 km deep · 50 km away
16. 1.75km S of Santa Barbara, CATue, Aug 29, 10:20 AM PDT · 17565 days ago · 9 km deep · 96 km away
17. 2.616km N of Pine Mountain Club, CATue, Aug 29, 2:58 PM PDT · 17565 days ago · 3 km deep · 12 km away
18. 2.28km SW of Santa Barbara, CATue, Aug 29, 4:06 PM PDT · 17565 days ago · 12 km deep · 100 km away
19. 1.87km SW of Santa Barbara, CATue, Aug 29, 6:23 PM PDT · 17565 days ago · 11 km deep · 99 km away
20. 1.86km N of Granada Hills, CATue, Aug 29, 11:29 PM PDT · 17564 days ago · 10 km deep · 98 km away
21. 1.84km SE of Goleta, CAWed, Aug 30, 3:54 AM PDT · 17564 days ago · 13 km deep · 99 km away
22. 1.66km NW of Pacoima, CAWed, Aug 30, 4:58 AM PDT · 17564 days ago · 8 km deep · 99 km away
23. 1.78km N of Santa Paula, CAThu, Aug 31, 3:26 AM PDT · 17563 days ago · 4 km deep · 71 km away
24. 1.611km NNW of Grapevine, CAThu, Aug 31, 12:34 PM PDT · 17563 days ago · 6 km deep · 10 km away
25. 2.014km SE of Carpinteria, CAFri, Sep 1, 6:17 AM PDT · 17562 days ago · 3 km deep · 92 km away
26. 2.15km ESE of Bodfish, CASat, Sep 2, 7:29 PM PDT · 17561 days ago · 5 km deep · 81 km away
27. 1.97km SW of Santa Barbara, CASun, Sep 3, 8:25 AM PDT · 17560 days ago · 11 km deep · 99 km away
28. 1.66km SW of Santa Barbara, CASun, Sep 3, 11:37 AM PDT · 17560 days ago · 13 km deep · 99 km away
29. 2.89km SE of Lake Isabella, CAMon, Sep 4, 2:05 PM PDT · 17559 days ago · 3 km deep · 83 km away
30. 1.88km SE of Lake Isabella, CAMon, Sep 4, 4:22 PM PDT · 17559 days ago · 6 km deep · 83 km away
31. 1.717km SSW of Lamont, CATue, Sep 5, 10:02 AM PDT · 17558 days ago · 9 km deep · 10 km away
32. 2.17km SW of Santa Barbara, CATue, Sep 5, 1:19 PM PDT · 17558 days ago · 11 km deep · 99 km away
33. 2.16km S of Santa Barbara, CAWed, Sep 6, 6:00 PM PDT · 17557 days ago · 11 km deep · 98 km away
34. 1.714km W of Ventura, CAThu, Sep 7, 5:32 AM PDT · 17556 days ago · 0 km deep · 95 km away
35. 2.77km SSW of Santa Barbara, CAThu, Sep 7, 12:00 PM PDT · 17556 days ago · 12 km deep · 99 km away
36. 1.615km N of Grapevine, CAThu, Sep 7, 7:19 PM PDT · 17556 days ago · 10 km deep · 13 km away
37. 1.92km S of Montecito, CASun, Sep 10, 5:03 AM PDT · 17553 days ago · 6 km deep · 89 km away
38. 2.56km SE of Goleta, CASun, Sep 10, 8:28 AM PDT · 17553 days ago · 11 km deep · 100 km away
39. 1.99km E of Santa Clarita, CAMon, Sep 11, 11:26 AM PDT · 17552 days ago · 11 km deep · 94 km away
40. 1.69km ENE of Santa Clarita, CAMon, Sep 11, 9:01 PM PDT · 17551 days ago · 5 km deep · 91 km away
41. 3.56km WSW of Santa Barbara, CATue, Sep 12, 4:57 AM PDT · 17551 days ago · 15 km deep · 98 km away
42. 1.610km ESE of Santa Clarita, CATue, Sep 12, 9:46 PM PDT · 17550 days ago · 2 km deep · 97 km away
43. 1.920km NW of Grapevine, CAWed, Sep 13, 12:13 AM PDT · 17550 days ago · 0 km deep · 2 km away
44. 1.622km NE of Arvin, CAThu, Sep 14, 1:57 PM PDT · 17549 days ago · 1 km deep · 49 km away
45. 2.38km ESE of Bodfish, CAFri, Sep 15, 3:31 AM PDT · 17548 days ago · 6 km deep · 82 km away
46. 2.08km SSW of Santa Barbara, CAFri, Sep 15, 7:33 AM PDT · 17548 days ago · 11 km deep · 100 km away
47. 1.56km W of Grapevine, CAMon, Sep 18, 3:28 PM PDT · 17545 days ago · 11 km deep · 15 km away
48. 2.38km S of Santa Barbara, CATue, Sep 19, 9:18 PM PDT · 17543 days ago · 10 km deep · 99 km away
49. 3.56km SW of Santa Barbara, CASat, Sep 23, 7:04 PM PDT · 17540 days ago · 12 km deep · 98 km away
50. 2.09km N of Mojave, CASun, Sep 24, 12:49 AM PDT · 17539 days ago · 5 km deep · 80 km away
51. 2.57km ESE of Bodfish, CAMon, Sep 25, 6:13 PM PDT · 17538 days ago · 5 km deep · 82 km away
52. 2.58km SE of Lake Isabella, CAMon, Sep 25, 6:26 PM PDT · 17538 days ago · 5 km deep · 82 km away
53. 1.87km ESE of Bodfish, CAMon, Sep 25, 6:39 PM PDT · 17538 days ago · 5 km deep · 81 km away
54. 2.68km SE of Lake Isabella, CAMon, Sep 25, 8:41 PM PDT · 17537 days ago · 4 km deep · 83 km away
55. 1.67km ESE of Bodfish, CAMon, Sep 25, 11:17 PM PDT · 17537 days ago · 7 km deep · 81 km away
56. 2.022km ESE of Bodfish, CATue, Sep 26, 4:23 AM PDT · 17537 days ago · 6 km deep · 84 km away
57. 1.912km WNW of Tehachapi, CATue, Sep 26, 3:19 PM PDT · 17537 days ago · 5 km deep · 47 km away
58. 1.69km E of Santa Clarita, CAWed, Sep 27, 7:46 AM PDT · 17536 days ago · 10 km deep · 93 km away
59. 2.29km E of Santa Clarita, CAWed, Sep 27, 7:49 AM PDT · 17536 days ago · 6 km deep · 93 km away
60. 1.89km ESE of Lake Isabella, CAWed, Sep 27, 9:09 AM PDT · 17536 days ago · 1 km deep · 85 km away

The first 60 of 80.

Before

1. 3.28km SW of Santa Barbara, CASun, Aug 20, 1:15 PM PDT · 17574 days ago · 13 km deep · 100 km away
2. 2.36km S of Santa Barbara, CASun, Aug 20, 6:14 AM PDT · 17574 days ago · 10 km deep · 98 km away
3. 2.28km SSW of Santa Barbara, CASat, Aug 19, 9:04 PM PDT · 17574 days ago · 11 km deep · 100 km away
4. 1.816km NW of Grapevine, CASat, Aug 19, 2:16 PM PDT · 17575 days ago · 12 km deep · 3 km away
5. 1.75km WNW of Carpinteria, CASat, Aug 19, 11:33 AM PDT · 17575 days ago · 3 km deep · 85 km away
6. 1.87km SSW of Santa Barbara, CASat, Aug 19, 9:17 AM PDT · 17575 days ago · 11 km deep · 99 km away
7. 2.09km SW of Agua Dulce, CASat, Aug 19, 7:59 AM PDT · 17575 days ago · 11 km deep · 95 km away
8. 1.74km SSE of Ventura, CASat, Aug 19, 4:04 AM PDT · 17575 days ago · 2 km deep · 92 km away
9. 1.97km SW of Santa Barbara, CAFri, Aug 18, 3:17 PM PDT · 17576 days ago · 11 km deep · 99 km away
10. 2.17km SSW of Santa Barbara, CAFri, Aug 18, 11:40 AM PDT · 17576 days ago · 10 km deep · 99 km away
11. 1.66km SE of Goleta, CAFri, Aug 18, 1:53 AM PDT · 17576 days ago · 13 km deep · 99 km away
12. 2.05km SW of Mojave, CAFri, Aug 18, 1:17 AM PDT · 17576 days ago · 4 km deep · 79 km away
13. 1.78km SW of Santa Barbara, CAFri, Aug 18, 1:16 AM PDT · 17576 days ago · 12 km deep · 100 km away
14. 2.28km SW of Santa Barbara, CAFri, Aug 18, 12:18 AM PDT · 17576 days ago · 13 km deep · 100 km away
15. 1.97km SSW of Santa Barbara, CAThu, Aug 17, 7:52 PM PDT · 17577 days ago · 12 km deep · 99 km away
16. 1.817km NW of Tehachapi, CAThu, Aug 17, 7:24 PM PDT · 17577 days ago · 3 km deep · 50 km away
17. 2.05km WSW of Santa Barbara, CAThu, Aug 17, 7:24 PM PDT · 17577 days ago · 14 km deep · 97 km away
18. 2.06km S of Santa Barbara, CAThu, Aug 17, 4:28 PM PDT · 17577 days ago · 12 km deep · 98 km away
19. 1.85km SSW of Santa Barbara, CAThu, Aug 17, 12:32 PM PDT · 17577 days ago · 11 km deep · 96 km away
20. 1.77km SW of Santa Barbara, CAThu, Aug 17, 11:30 AM PDT · 17577 days ago · 13 km deep · 99 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3341218. Read Thu, Oct 1, 2026, 3:02 PM UTC.