M1.7 earthquake 2km S of Acton, CA

Magnitude

1.7 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Sun, Oct 1, 1972, 11:01 AM PDT

UTC

1972-10-01 18:01:46 UTC

Depth

5.0 km (3.1 mi), shallow

Epicenter

34.450° N, 118.197° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Depth from

From location

Stations used

0

• Acton, CaliforniaPopulation 7,596. Forecast2 kmS
• Vincent, CaliforniaPopulation 15,922. Forecast9 kmSW
• Palmdale, CaliforniaPopulation 158,351. Forecast16 kmSSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast45 kmN

After

1. 1.76km NE of Yorba Linda, CASun, Oct 1, 9:41 PM PDT · 19723 days ago · 12 km deep · 70 km away
2. 1.77km ESE of Santa Clarita, CAMon, Oct 2, 12:40 AM PDT · 19722 days ago · 8 km deep · 23 km away
3. 2.53km NE of Los Angeles, CAMon, Oct 2, 8:46 AM PDT · 19722 days ago · 11 km deep · 42 km away
4. 1.74km NW of Agua Dulce, CATue, Oct 3, 4:32 AM PDT · 19721 days ago · 6 km deep · 16 km away
5. 1.78km SW of Valencia, CAThu, Oct 5, 6:53 AM PDT · 19719 days ago · 6 km deep · 40 km away
6. 3.120km NNW of Tehachapi, CAFri, Oct 6, 4:08 AM PDT · 19718 days ago · 1 km deep · 99 km away
7. 2.49km S of Agua Dulce, CAFri, Oct 6, 1:43 PM PDT · 19718 days ago · 1 km deep · 14 km away
8. 2.34km SE of Ontario, CAFri, Oct 6, 11:03 PM PDT · 19717 days ago · 4 km deep · 72 km away
9. 2.34km ESE of Chino, CASat, Oct 7, 7:15 PM PDT · 19717 days ago · 0 km deep · 72 km away
10. 3.44km SSE of Lytle Creek, CASun, Oct 8, 4:47 AM PDT · 19716 days ago · 0 km deep · 70 km away
11. 1.75km SSW of Valencia, CASun, Oct 8, 10:10 AM PDT · 19716 days ago · 9 km deep · 36 km away
12. 1.73km NNE of Whittier, CASun, Oct 8, 2:51 PM PDT · 19716 days ago · 5 km deep · 52 km away
13. 2.13km NE of Lake View Terrace, CATue, Oct 10, 12:53 AM PDT · 19714 days ago · 0 km deep · 22 km away
14. 1.74km E of Santa Clarita, CATue, Oct 10, 6:00 AM PDT · 19714 days ago · 17 km deep · 25 km away
15. 1.76km NNW of Devore, CATue, Oct 10, 11:56 PM PDT · 19713 days ago · 7 km deep · 74 km away
16. 1.79km ESE of Santa Clarita, CAWed, Oct 11, 12:49 AM PDT · 19713 days ago · 8 km deep · 22 km away
17. 1.710km NNE of La Verne, CAWed, Oct 11, 11:45 AM PDT · 19713 days ago · 6 km deep · 50 km away
18. 1.78km NNW of Rancho Cucamonga, CAWed, Oct 11, 8:06 PM PDT · 19713 days ago · 6 km deep · 61 km away
19. 1.77km NE of Lake View Terrace, CAWed, Oct 11, 11:53 PM PDT · 19712 days ago · 12 km deep · 18 km away
20. 2.66km SSW of Agua Dulce, CAThu, Oct 12, 11:46 PM PDT · 19711 days ago · 1 km deep · 13 km away
21. 2.53km SE of Loma Linda, CASun, Oct 15, 8:32 PM PDT · 19709 days ago · 13 km deep · 99 km away
22. 1.712km N of Lake View Terrace, CAMon, Oct 16, 12:48 AM PDT · 19708 days ago · 6 km deep · 16 km away
23. 2.86km ESE of Santa Clarita, CAMon, Oct 16, 3:36 AM PDT · 19708 days ago · 11 km deep · 23 km away
24. 3.43km N of Rancho Palos Verdes, CAMon, Oct 16, 5:34 AM PDT · 19708 days ago · 6 km deep · 78 km away
25. 2.511km N of Lake View Terrace, CAMon, Oct 16, 5:23 PM PDT · 19708 days ago · 0 km deep · 18 km away
26. 2.43km SE of Colton, CATue, Oct 17, 12:39 PM PDT · 19707 days ago · 11 km deep · 94 km away
27. 1.710km ESE of Santa Clarita, CAWed, Oct 18, 6:09 AM PDT · 19706 days ago · 6 km deep · 20 km away
28. 1.75km SSW of Las Flores, CAWed, Oct 18, 3:41 PM PDT · 19706 days ago · 6 km deep · 66 km away
29. 1.73km S of Valencia, CAThu, Oct 19, 6:42 AM PDT · 19705 days ago · 2 km deep · 34 km away
30. 3.67km E of Santa Clarita, CAThu, Oct 19, 5:03 PM PDT · 19705 days ago · 8 km deep · 22 km away
31. 1.74km NNE of Fontana, CAThu, Oct 19, 10:16 PM PDT · 19704 days ago · 6 km deep · 78 km away
32. 2.84km S of Ontario, CAFri, Oct 20, 10:53 AM PDT · 19704 days ago · 0 km deep · 72 km away
33. 3.69km ESE of Santa Clarita, CAFri, Oct 20, 5:03 PM PDT · 19704 days ago · 5 km deep · 21 km away
34. 2.08km ESE of Santa Clarita, CAFri, Oct 20, 5:07 PM PDT · 19704 days ago · 6 km deep · 22 km away
35. 1.77km WSW of Agua Dulce, CAFri, Oct 20, 5:41 PM PDT · 19704 days ago · 6 km deep · 18 km away
36. 1.71km N of Grand Terrace, CASat, Oct 21, 5:43 AM PDT · 19703 days ago · 7 km deep · 93 km away
37. 2.96km S of Ontario, CASat, Oct 21, 5:53 AM PDT · 19703 days ago · 0 km deep · 73 km away
38. 1.71km NW of La Verne, CASat, Oct 21, 8:45 AM PDT · 19703 days ago · 6 km deep · 54 km away
39. 2.512km NNE of Lake Arrowhead, CASat, Oct 21, 12:53 PM PDT · 19703 days ago · 6 km deep · 100 km away
40. 1.72km NNE of Rancho Cucamonga, CASat, Oct 21, 1:27 PM PDT · 19703 days ago · 6 km deep · 67 km away
41. 2.14km SSE of Ontario, CASat, Oct 21, 10:08 PM PDT · 19702 days ago · 6 km deep · 72 km away
42. 2.38km SE of Chino, CASun, Oct 22, 5:40 AM PDT · 19702 days ago · 0 km deep · 75 km away
43. 1.72km S of Fountain Valley, CASun, Oct 22, 5:50 AM PDT · 19702 days ago · 6 km deep · 87 km away
44. 1.73km NNW of Fontana, CASun, Oct 22, 6:59 PM PDT · 19702 days ago · 6 km deep · 76 km away
45. 1.75km ESE of Ontario, CATue, Oct 24, 10:24 PM PDT · 19699 days ago · 6 km deep · 73 km away
46. 1.71km S of Highland Park, CAThu, Oct 26, 12:18 AM PDT · 19698 days ago · 6 km deep · 38 km away
47. 2.05km S of Rancho Cucamonga, CAThu, Oct 26, 5:47 AM PDT · 19698 days ago · 11 km deep · 70 km away
48. 2.512km N of Lake View Terrace, CAThu, Oct 26, 9:36 PM PDT · 19698 days ago · 0 km deep · 18 km away
49. 2.512km NNE of Lake View Terrace, CAThu, Oct 26, 9:37 PM PDT · 19698 days ago · 2 km deep · 15 km away
50. 2.113km ESE of Santa Clarita, CAFri, Oct 27, 1:15 AM PDT · 19697 days ago · 0 km deep · 18 km away
51. 2.68km N of Pacoima, CAFri, Oct 27, 1:53 AM PDT · 19697 days ago · 2 km deep · 24 km away
52. 2.46km SE of Chino, CAFri, Oct 27, 6:50 PM PDT · 19697 days ago · 0 km deep · 73 km away
53. 2.22km NW of Seal Beach, CASat, Oct 28, 1:47 AM PDT · 19696 days ago · 6 km deep · 78 km away
54. 1.73km ESE of Pacoima, CASun, Oct 29, 6:46 PM PST · 19695 days ago · 8 km deep · 27 km away
55. 2.45km SSE of Ontario, CAMon, Oct 30, 11:25 AM PST · 19694 days ago · 6 km deep · 73 km away
56. 2.43km SSE of Ontario, CAMon, Oct 30, 10:41 PM PST · 19693 days ago · 6 km deep · 72 km away
57. 2.45km SSE of Ontario, CAMon, Oct 30, 11:35 PM PST · 19693 days ago · 6 km deep · 73 km away
58. 1.712km N of Sunland, CAThu, Nov 2, 1:58 PM PST · 19691 days ago · 10 km deep · 13 km away
59. 2.13km W of Paramount, CAFri, Nov 3, 5:58 PM PST · 19690 days ago · 6 km deep · 63 km away
60. 1.72km WNW of Paramount, CAFri, Nov 3, 8:28 PM PST · 19690 days ago · 6 km deep · 62 km away

The first 60 of 138.

Before

1. 1.79km NNW of Rancho Cucamonga, CASat, Sep 30, 11:58 PM PDT · 19723 days ago · 6 km deep · 61 km away
2. 1.78km NNW of Rancho Cucamonga, CASat, Sep 30, 11:57 PM PDT · 19723 days ago · 6 km deep · 62 km away
3. 2.511km ESE of Yorba Linda, CASat, Sep 30, 10:01 AM PDT · 19724 days ago · 6 km deep · 81 km away
4. 1.76km NNE of San Dimas, CAFri, Sep 29, 12:32 AM PDT · 19725 days ago · 6 km deep · 50 km away
5. 2.07km ENE of Santa Clarita, CAThu, Sep 28, 6:02 AM PDT · 19726 days ago · 6 km deep · 22 km away
6. 1.77km S of Santa Clarita, CAWed, Sep 27, 3:09 AM PDT · 19727 days ago · 2 km deep · 31 km away
7. 1.74km SSE of Ontario, CATue, Sep 26, 10:02 PM PDT · 19727 days ago · 6 km deep · 72 km away
8. 2.25km ESE of Chino, CATue, Sep 26, 9:15 PM PDT · 19728 days ago · 0 km deep · 72 km away
9. 2.16km ESE of Chino, CATue, Sep 26, 9:11 PM PDT · 19728 days ago · 0 km deep · 73 km away
10. 2.36km ESE of Chino, CATue, Sep 26, 9:10 PM PDT · 19728 days ago · 0 km deep · 73 km away
11. 2.05km ESE of Chino, CATue, Sep 26, 9:09 PM PDT · 19728 days ago · 0 km deep · 72 km away
12. 2.58km E of Hesperia, CASat, Sep 23, 6:30 PM PDT · 19731 days ago · 4 km deep · 90 km away
13. 1.78km WSW of Agua Dulce, CASat, Sep 23, 3:07 PM PDT · 19731 days ago · 9 km deep · 19 km away
14. 1.75km NNW of Sunland, CAFri, Sep 22, 7:50 PM PDT · 19732 days ago · 2 km deep · 20 km away
15. 2.211km N of Sunland, CAFri, Sep 22, 5:53 PM PDT · 19732 days ago · 12 km deep · 13 km away
16. 2.33km NNW of Fontana, CAWed, Sep 20, 8:35 PM PDT · 19734 days ago · 0 km deep · 76 km away
17. 2.82km NNW of Fontana, CAWed, Sep 20, 10:48 AM PDT · 19734 days ago · 0 km deep · 77 km away
18. 2.36km NNE of Fontana, CAWed, Sep 20, 10:32 AM PDT · 19734 days ago · 0 km deep · 77 km away
19. 2.43km NNW of Fontana, CAWed, Sep 20, 10:20 AM PDT · 19734 days ago · 0 km deep · 76 km away
20. 1.712km ESE of Santa Clarita, CATue, Sep 19, 11:43 PM PDT · 19734 days ago · 6 km deep · 18 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci12316539. Read Thu, Oct 1, 2026, 4:17 PM UTC.