M1.6 earthquake 12km NNE of Simi Valley, CA

Magnitude

1.6 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Fri, Jan 17, 2003, 5:13 PM PST

UTC

2003-01-18 01:13:54 UTC

Depth

13.7 km (8.5 mi), shallow

Epicenter

34.363° N, 118.669° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.6 km horizontally, 0.9 km in depth

Magnitude uncertainty

±0.15

Depth from

From location

Station coverage gap

63°

Stations used

19

• Val Verde, CaliforniaPopulation 2,468. Forecast9 kmS
• Stevenson Ranch, CaliforniaPopulation 17,557. Forecast9 kmWSW
• Valencia, CaliforniaPopulation 148,456. Forecast11 kmSSW
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast52 kmNW

After

1. 3.15km NNE of Chatsworth, CASat, Jan 18, 2:43 AM PST · 8661 days ago · 2 km deep · 11 km away · felt by 2
2. 1.68km SSW of Arvin, CASat, Jan 18, 7:14 PM PST · 8660 days ago · 7 km deep · 88 km away
3. 1.511km N of Castaic, CASun, Jan 19, 8:13 AM PST · 8660 days ago · 10 km deep · 26 km away
4. 2.20km ENE of Baldwin Hills, CAMon, Jan 20, 4:20 PM PST · 8659 days ago · 15 km deep · 49 km away
5. 2.09km N of Pacoima, CATue, Jan 21, 12:32 AM PST · 8658 days ago · 7 km deep · 21 km away
6. 1.98km N of Pacoima, CATue, Jan 21, 12:33 AM PST · 8658 days ago · 4 km deep · 22 km away
7. 1.71km SW of Encino, CATue, Jan 21, 5:46 AM PST · 8658 days ago · 10 km deep · 27 km away
8. 3.013km WSW of El Segundo, CAWed, Jan 22, 12:28 PM PST · 8657 days ago · 13 km deep · 53 km away · felt by 2
9. 1.91km NNW of Baldwin Hills, CAThu, Jan 23, 5:09 PM PST · 8655 days ago · 9 km deep · 47 km away
10. 1.911km NE of Simi Valley, CASun, Jan 26, 3:30 AM PST · 8653 days ago · 14 km deep · 2 km away
11. 2.620km SSE of Santa Cruz Is. (E end), CASun, Jan 26, 8:01 AM PST · 8653 days ago · 13 km deep · 88 km away
12. 1.812km SW of Marina del Rey, CASun, Jan 26, 5:59 PM PST · 8652 days ago · 15 km deep · 52 km away
13. 1.56km NE of Yorba Linda, CAMon, Jan 27, 5:44 AM PST · 8652 days ago · 10 km deep · 97 km away
14. 2.011km NNW of Grapevine, CATue, Jan 28, 5:49 PM PST · 8650 days ago · 11 km deep · 80 km away
15. 2.311km NNW of Grapevine, CATue, Jan 28, 9:11 PM PST · 8650 days ago · 4 km deep · 80 km away
16. 1.82km NW of Orange, CaliforniaWed, Jan 29, 12:20 PM PST · 8650 days ago · 3 km deep · 97 km away
17. 2.42km NNE of Baldwin Hills, CAWed, Jan 29, 9:52 PM PST · 8649 days ago · 12 km deep · 47 km away
18. 1.615km N of Fillmore, CaliforniaThu, Jan 30, 12:24 AM PST · 8649 days ago · 15 km deep · 30 km away
19. 2.011km NE of Simi Valley, CAFri, Jan 31, 12:57 PM PST · 8648 days ago · 14 km deep · 1 km away
20. 1.67km SSE of Tehachapi, CAFri, Jan 31, 5:10 PM PST · 8647 days ago · 5 km deep · 82 km away
21. 1.83km WNW of Pacoima, CAMon, Feb 3, 2:13 PM PST · 8645 days ago · 9 km deep · 20 km away
22. 1.514km SSW of Arvin, CaliforniaMon, Feb 3, 10:03 PM PST · 8644 days ago · 22 km deep · 85 km away
23. 2.02km NNE of Baldwin Hills, CATue, Feb 4, 9:20 AM PST · 8644 days ago · 10 km deep · 47 km away
24. 1.51km NE of Granada Hills, CATue, Feb 4, 4:24 PM PST · 8644 days ago · 12 km deep · 19 km away
25. 1.95km SSW of Sherman Oaks, CAFri, Feb 7, 8:00 PM PST · 8640 days ago · 7 km deep · 33 km away
26. 1.92km ENE of La Habra Heights, CAMon, Feb 10, 4:11 AM PST · 8638 days ago · 14 km deep · 81 km away
27. 1.72km N of View Park-Windsor Hills, CATue, Feb 11, 1:15 AM PST · 8637 days ago · 13 km deep · 48 km away
28. 2.44km N of Valencia, CATue, Feb 11, 6:42 AM PST · 8637 days ago · 18 km deep · 17 km away
29. 1.61km E of Baldwin Hills, CAWed, Feb 12, 1:42 AM PST · 8636 days ago · 14 km deep · 49 km away
30. 2.27km SW of Ojai, CAWed, Feb 12, 12:10 PM PST · 8636 days ago · 9 km deep · 59 km away
31. 1.79km WSW of Ojai, CAWed, Feb 12, 12:13 PM PST · 8636 days ago · 6 km deep · 61 km away
32. 1.99km SW of Valencia, CAWed, Feb 12, 3:58 PM PST · 8636 days ago · 16 km deep · 5 km away
33. 1.58km SW of Valencia, CaliforniaWed, Feb 12, 4:24 PM PST · 8636 days ago · 19 km deep · 6 km away
34. 1.99km SW of Valencia, CAWed, Feb 12, 4:39 PM PST · 8636 days ago · 17 km deep · 5 km away
35. 1.811km WSW of Ojai, CAThu, Feb 13, 10:32 AM PST · 8635 days ago · 3 km deep · 63 km away
36. 1.63km SSW of Malibu Beach, CAThu, Feb 13, 1:35 PM PST · 8635 days ago · 7 km deep · 39 km away
37. 1.514km NNW of Castaic, CAThu, Feb 13, 1:39 PM PST · 8635 days ago · 8 km deep · 28 km away
38. 2.05km N of Yorba Linda, CAFri, Feb 14, 3:47 PM PST · 8634 days ago · 16 km deep · 92 km away
39. 1.86km N of Yorba Linda, CAFri, Feb 14, 9:26 PM PST · 8633 days ago · 15 km deep · 92 km away
40. 1.55km N of Pacoima, CASat, Feb 15, 10:01 AM PST · 8633 days ago · 4 km deep · 22 km away
41. 1.65km NNE of Valencia, CaliforniaSun, Feb 16, 8:43 PM PST · 8631 days ago · 18 km deep · 18 km away
42. 1.93km S of Encino, CAMon, Feb 17, 1:26 PM PST · 8631 days ago · 6 km deep · 30 km away
43. 1.53km WNW of San Fernando, CaliforniaWed, Feb 19, 8:40 AM PST · 8629 days ago · 12 km deep · 20 km away
44. 3.419km S of Maricopa, CAWed, Feb 19, 9:10 AM PST · 8629 days ago · 10 km deep · 87 km away
45. 3.119km SSE of Maricopa, CAWed, Feb 19, 1:00 PM PST · 8629 days ago · 12 km deep · 86 km away
46. 2.23km NE of Reseda, CAWed, Feb 19, 6:32 PM PST · 8628 days ago · 17 km deep · 22 km away
47. 2.21km N of Gardena, CaliforniaThu, Feb 20, 9:30 AM PST · 8628 days ago · 15 km deep · 62 km away
48. 2.35km W of Manhattan Beach, CAThu, Feb 20, 7:33 PM PST · 8627 days ago · 12 km deep · 56 km away
49. 2.719km SSE of Maricopa, CAFri, Feb 21, 11:47 AM PST · 8627 days ago · 12 km deep · 86 km away
50. 1.716km NNW of Grapevine, CAFri, Feb 21, 9:16 PM PST · 8626 days ago · 14 km deep · 85 km away
51. 1.76km W of Chatsworth, CASun, Feb 23, 6:37 AM PST · 8625 days ago · 12 km deep · 12 km away
52. 2.512km NNW of Grapevine, CASun, Feb 23, 2:04 PM PST · 8625 days ago · 9 km deep · 81 km away
53. 2.014km S of Malibu, CASun, Feb 23, 9:58 PM PST · 8624 days ago · 19 km deep · 55 km away
54. 1.64km SW of Sherman Oaks, CAWed, Feb 26, 5:03 PM PST · 8621 days ago · 6 km deep · 32 km away
55. 2.38km NE of Santa Paula, CaliforniaSun, Mar 2, 5:13 AM PST · 8618 days ago · 27 km deep · 31 km away
56. 2.58km WNW of Fillmore, CAMon, Mar 3, 4:44 PM PST · 8616 days ago · 26 km deep · 31 km away
57. 1.92km SW of Lennox, CAWed, Mar 5, 11:16 PM PST · 8614 days ago · 16 km deep · 56 km away
58. 1.813km WNW of Grapevine, CAThu, Mar 6, 12:09 AM PST · 8614 days ago · 22 km deep · 77 km away
59. 1.69km WNW of Frazier Park, CAThu, Mar 6, 3:02 AM PST · 8614 days ago · 1 km deep · 64 km away
60. 2.03km SW of South El Monte, CAFri, Mar 7, 2:07 AM PST · 8613 days ago · 11 km deep · 66 km away

The first 60 of 73.

Before

1. 2.017km NNW of Fillmore, CAFri, Jan 17, 4:05 PM PST · 8662 days ago · 26 km deep · 37 km away
2. 1.61km E of Baldwin Hills, CAFri, Jan 17, 2:53 AM PST · 8662 days ago · 15 km deep · 49 km away
3. 1.92km SSW of Lakewood, CAFri, Jan 17, 1:47 AM PST · 8662 days ago · 16 km deep · 76 km away
4. 2.112km N of Piru, CAThu, Jan 16, 1:01 PM PST · 8663 days ago · 16 km deep · 20 km away
5. 1.513km E of Carpinteria, CAThu, Jan 16, 12:24 PM PST · 8663 days ago · 3 km deep · 66 km away
6. 1.53km NE of Granada Hills, CAWed, Jan 15, 3:40 PM PST · 8664 days ago · 12 km deep · 19 km away
7. 1.93km SSW of Chatsworth, CAWed, Jan 15, 1:21 PM PST · 8664 days ago · 7 km deep · 16 km away
8. 2.014km SW of Rancho Palos Verdes, CAMon, Jan 13, 5:35 AM PST · 8666 days ago · 0 km deep · 81 km away
9. 2.40km NE of Baldwin Hills, CAMon, Jan 13, 3:10 AM PST · 8666 days ago · 15 km deep · 48 km away
10. 1.814km WSW of Lamont, CaliforniaSun, Jan 12, 1:37 PM PST · 8667 days ago · 12 km deep · 98 km away
11. 1.68km SW of Ojai, CASat, Jan 11, 1:21 PM PST · 8668 days ago · 6 km deep · 59 km away
12. 1.618km NNW of Grapevine, CaliforniaSat, Jan 11, 8:55 AM PST · 8668 days ago · 13 km deep · 86 km away
13. 2.81km NNE of Baldwin Hills, CAFri, Jan 10, 11:54 PM PST · 8668 days ago · 15 km deep · 48 km away
14. 2.61km ENE of Baldwin Hills, CAFri, Jan 10, 6:58 PM PST · 8668 days ago · 14 km deep · 49 km away
15. 2.46km SW of Ojai, CAWed, Jan 8, 2:14 PM PST · 8671 days ago · 4 km deep · 57 km away
16. 1.516km SSW of Carpinteria, CAWed, Jan 8, 2:26 AM PST · 8671 days ago · 10 km deep · 87 km away
17. 2.720km NNE of Lake Los Angeles, CASun, Jan 5, 6:09 PM PST · 8673 days ago · 3 km deep · 98 km away
18. 1.63km ENE of Culver City, CASun, Jan 5, 12:36 PM PST · 8674 days ago · 14 km deep · 46 km away
19. 2.28km SW of Santa Clarita, CaliforniaSun, Jan 5, 9:32 AM PST · 8674 days ago · 8 km deep · 9 km away
20. 1.88km NNW of Lake Los Angeles, CASun, Jan 5, 8:08 AM PST · 8674 days ago · 5 km deep · 83 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci9880977. Read Mon, Oct 5, 2026, 12:10 PM UTC.