M2.1 earthquake 4km WNW of Willowbrook, CA

Magnitude

2.1 (Mh), micro

Magnitude from

Southern California Seismic Network

Local time

Mon, Aug 1, 1983, 11:54 PM PDT

UTC

1983-08-02 06:54:39 UTC

Depth

11.9 km (7.4 mi), shallow

Epicenter

33.927° N, 118.293° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Magnitude uncertainty

±0.19

Depth from

From location

Station coverage gap

105°

Stations used

0

• West Athens, CaliforniaPopulation 8,729. Forecast1 kmENE
• Westmont, CaliforniaPopulation 31,853. Forecast2 kmSSE
• Inglewood, CaliforniaPopulation 111,666. Forecast7 kmSE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast15 kmSSW

After

1. 1.914km WNW of Malibu, CATue, Aug 2, 6:46 PM PDT · 15768 days ago · 10 km deep · 61 km away
2. 1.74km N of Fontana, CAWed, Aug 3, 11:04 AM PDT · 15767 days ago · 8 km deep · 81 km away
3. 2.214km WNW of Malibu, CAThu, Aug 4, 2:28 AM PDT · 15767 days ago · 9 km deep · 62 km away
4. 1.76km N of Moreno Valley, CAThu, Aug 4, 6:10 PM PDT · 15766 days ago · 14 km deep · 97 km away
5. 2.26km NNW of Malibu, CAFri, Aug 5, 12:11 PM PDT · 15765 days ago · 8 km deep · 53 km away
6. 2.58km NE of Ventura, CASat, Aug 6, 11:05 AM PDT · 15764 days ago · 0 km deep · 93 km away
7. 2.44km NNE of Fontana, CASun, Aug 7, 4:30 PM PDT · 15763 days ago · 7 km deep · 82 km away
8. 1.93km ENE of Loma Linda, CATue, Aug 9, 4:27 AM PDT · 15762 days ago · 12 km deep · 99 km away
9. 2.626km NNW of Santa Barbara Is., CATue, Aug 9, 12:30 PM PDT · 15761 days ago · 6 km deep · 83 km away
10. 1.65km NW of Mira Loma, CATue, Aug 9, 9:30 PM PDT · 15761 days ago · 8 km deep · 69 km away
11. 2.117km ENE of Ojai, CAWed, Aug 10, 6:59 AM PDT · 15761 days ago · 5 km deep · 99 km away
12. 3.05km W of Santa Paula, CAFri, Aug 12, 11:22 AM PDT · 15758 days ago · -1 km deep · 89 km away
13. 2.58km WNW of Lake Hughes, CATue, Aug 16, 4:16 AM PDT · 15755 days ago · 9 km deep · 89 km away
14. 2.23km NNE of Fontana, CAWed, Aug 17, 7:29 AM PDT · 15754 days ago · 5 km deep · 81 km away
15. 2.07km SSW of Littlerock, CAWed, Aug 17, 1:55 PM PDT · 15753 days ago · 6 km deep · 65 km away
16. 1.87km SW of Littlerock, CAThu, Aug 18, 2:43 AM PDT · 15753 days ago · 6 km deep · 65 km away
17. 1.822km WSW of Rancho Palos Verdes, CASun, Aug 21, 9:25 AM PDT · 15749 days ago · 6 km deep · 41 km away
18. 2.019km ENE of Ojai, CAMon, Aug 22, 12:02 PM PDT · 15748 days ago · 5 km deep · 97 km away
19. 1.76km ESE of San Juan Capistrano, CAMon, Aug 22, 6:01 PM PDT · 15748 days ago · 14 km deep · 80 km away
20. 2.019km ENE of Ojai, CAMon, Aug 22, 7:58 PM PDT · 15748 days ago · 5 km deep · 98 km away
21. 2.13km NNE of Lytle Creek, CAMon, Aug 22, 8:28 PM PDT · 15748 days ago · 13 km deep · 84 km away
22. 1.71km NW of Castaic, CATue, Aug 23, 2:05 AM PDT · 15748 days ago · 5 km deep · 70 km away
23. 2.029km NNW of Santa Barbara Is., CATue, Aug 23, 4:22 AM PDT · 15748 days ago · 5 km deep · 88 km away
24. 2.14km NNE of Moreno Valley, CATue, Aug 23, 11:42 AM PDT · 15747 days ago · 12 km deep · 100 km away
25. 2.67km NE of Santa Paula, CAFri, Aug 26, 1:06 PM PDT · 15744 days ago · 5 km deep · 83 km away
26. 1.61km N of Colton, CAFri, Aug 26, 2:05 PM PDT · 15744 days ago · 10 km deep · 92 km away
27. 1.51km S of Temple City, CASat, Aug 27, 6:41 PM PDT · 15743 days ago · 5 km deep · 29 km away
28. 1.99km ENE of Santa Clarita, CASun, Aug 28, 11:44 PM PDT · 15742 days ago · 7 km deep · 58 km away
29. 2.110km E of Yorba Linda, CAMon, Aug 29, 1:33 PM PDT · 15741 days ago · 5 km deep · 55 km away
30. 1.66km E of Vincent, CAFri, Sep 2, 7:43 AM PDT · 15738 days ago · 10 km deep · 67 km away
31. 1.65km ESE of Oak Park, CAFri, Sep 2, 8:44 AM PDT · 15737 days ago · 7 km deep · 46 km away
32. 1.85km NNW of Santa Monica, CASat, Sep 3, 4:41 AM PDT · 15737 days ago · 13 km deep · 25 km away
33. 2.618km SSW of San Pedro, CASun, Sep 4, 2:22 PM PDT · 15735 days ago · 5 km deep · 39 km away
34. 1.62km NW of Loma Linda, CATue, Sep 6, 6:28 PM PDT · 15733 days ago · 11 km deep · 95 km away
35. 1.514km WNW of Malibu, CAWed, Sep 7, 11:07 AM PDT · 15732 days ago · 11 km deep · 62 km away
36. 1.93km NNW of Fontana, CAFri, Sep 9, 12:56 PM PDT · 15730 days ago · 9 km deep · 79 km away
37. 1.721km SSE of Port Hueneme, CASat, Sep 10, 10:17 AM PDT · 15729 days ago · 8 km deep · 75 km away
38. 3.70km E of Loma Linda, CAMon, Sep 12, 5:08 AM PDT · 15728 days ago · 14 km deep · 97 km away
39. 2.11km S of San Bernardino, CAMon, Sep 12, 10:36 AM PDT · 15727 days ago · 4 km deep · 94 km away
40. 1.81km SE of San Bernardino, CAMon, Sep 12, 10:36 AM PDT · 15727 days ago · 3 km deep · 95 km away
41. 2.214km SSE of Malibu, CATue, Sep 13, 2:00 AM PDT · 15727 days ago · 11 km deep · 42 km away
42. 2.226km SW of Laguna Beach, CAWed, Sep 14, 12:57 AM PDT · 15726 days ago · 6 km deep · 68 km away
43. 1.56km SE of Llano, CAWed, Sep 14, 8:56 PM PDT · 15725 days ago · 3 km deep · 77 km away
44. 2.54km NNE of Fontana, CAWed, Sep 14, 9:39 PM PDT · 15725 days ago · 4 km deep · 82 km away
45. 2.38km SSW of Malibu Beach, CAThu, Sep 15, 1:41 PM PDT · 15724 days ago · 9 km deep · 41 km away
46. 2.014km NNW of Rancho Cucamonga, CASat, Sep 17, 5:50 AM PDT · 15723 days ago · 3 km deep · 68 km away
47. 2.315km ESE of Port Hueneme, CASun, Sep 18, 3:48 AM PDT · 15722 days ago · 11 km deep · 72 km away
48. 1.91km NNE of Loma Linda, CATue, Sep 20, 2:49 AM PDT · 15720 days ago · 15 km deep · 97 km away
49. 2.77km NE of Santa Clarita, CAWed, Sep 21, 5:28 AM PDT · 15719 days ago · 12 km deep · 61 km away
50. 1.91km SSE of Yorba Linda, CAWed, Sep 21, 5:58 AM PDT · 15719 days ago · 3 km deep · 45 km away
51. 2.06km ESE of Chino, CAWed, Sep 21, 3:39 PM PDT · 15718 days ago · 2 km deep · 61 km away
52. 2.218km WSW of Rancho Palos Verdes, CAFri, Sep 23, 12:08 AM PDT · 15717 days ago · 6 km deep · 38 km away
53. 2.318km WSW of Manhattan Beach, CAFri, Sep 23, 1:53 AM PDT · 15717 days ago · 6 km deep · 30 km away
54. 2.64km WNW of Monterey Park, CAFri, Sep 23, 5:26 AM PDT · 15717 days ago · 9 km deep · 20 km away
55. 1.74km W of Devore, CAFri, Sep 23, 7:49 PM PDT · 15716 days ago · 12 km deep · 85 km away
56. 1.82km NNE of Colton, CASat, Sep 24, 2:01 AM PDT · 15716 days ago · 16 km deep · 93 km away
57. 2.15km WNW of Mira Loma, CASat, Sep 24, 4:33 AM PDT · 15716 days ago · 3 km deep · 68 km away
58. 1.523km N of Fillmore, CASat, Sep 24, 9:41 PM PDT · 15715 days ago · 10 km deep · 97 km away
59. 1.93km E of Colton, CASun, Sep 25, 7:20 PM PDT · 15714 days ago · 13 km deep · 95 km away
60. 2.62km E of Willowbrook, CASun, Sep 25, 9:08 PM PDT · 15714 days ago · 13 km deep · 5 km away

The first 60 of 72.

Before

1. 2.12km W of Baldwin Park, CAMon, Aug 1, 6:00 PM PDT · 15769 days ago · 14 km deep · 33 km away
2. 3.04km NNE of Fontana, CAMon, Aug 1, 8:48 AM PDT · 15769 days ago · 2 km deep · 82 km away
3. 1.75km SE of Loma Linda, CASun, Jul 31, 2:45 PM PDT · 15770 days ago · 16 km deep · 99 km away
4. 2.02km WSW of Rolling Hills Estates, CAFri, Jul 29, 11:47 AM PDT · 15772 days ago · 7 km deep · 18 km away
5. 1.74km SE of Placentia, CAThu, Jul 28, 5:12 AM PDT · 15774 days ago · 5 km deep · 43 km away
6. 2.024km SSE of San Pedro, CAWed, Jul 27, 10:02 PM PDT · 15774 days ago · 5 km deep · 45 km away
7. 1.83km ESE of Commerce, CATue, Jul 26, 5:12 AM PDT · 15776 days ago · 5 km deep · 16 km away
8. 2.34km NNE of Fontana, CAMon, Jul 25, 12:53 PM PDT · 15776 days ago · 6 km deep · 81 km away
9. 1.621km S of Las Flores, CASun, Jul 24, 6:25 AM PDT · 15778 days ago · 13 km deep · 33 km away
10. 1.62km SSE of Muscoy, CAFri, Jul 22, 9:45 PM PDT · 15779 days ago · 10 km deep · 91 km away
11. 1.63km NW of Fontana, CAThu, Jul 21, 4:20 AM PDT · 15781 days ago · 8 km deep · 78 km away
12. 2.16km SSW of Devore, CATue, Jul 19, 8:05 AM PDT · 15783 days ago · 3 km deep · 85 km away
13. 2.316km SW of Malibu, CATue, Jul 19, 5:27 AM PDT · 15783 days ago · 12 km deep · 59 km away
14. 2.48km WSW of Malibu, CAMon, Jul 18, 8:19 PM PDT · 15783 days ago · 13 km deep · 55 km away
15. 1.71km NNE of Paramount, CAMon, Jul 18, 6:37 PM PDT · 15783 days ago · 1 km deep · 13 km away
16. 1.92km WNW of Devore, CAFri, Jul 15, 2:05 AM PDT · 15787 days ago · 11 km deep · 87 km away
17. 3.01km E of Silver Lake, CAThu, Jul 14, 7:59 AM PDT · 15788 days ago · 8 km deep · 19 km away
18. 1.618km ENE of Santa Barbara Is., CAWed, Jul 13, 5:07 PM PDT · 15788 days ago · 6 km deep · 70 km away
19. 2.47km SW of Huntington Beach, CAWed, Jul 13, 4:53 PM PDT · 15788 days ago · 5 km deep · 39 km away
20. 1.53km SE of Elizabeth Lake, CAWed, Jul 13, 1:27 PM PDT · 15788 days ago · -1 km deep · 80 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci13501. Read Sun, Oct 4, 2026, 2:49 AM UTC.