M1.6 earthquake 5km E of Simi Valley, CA

Magnitude

1.6 (Mc), micro

Magnitude from

Southern California Seismic Network

Local time

Sat, Nov 25, 1978, 8:46 AM PST

UTC

1978-11-25 16:46:40 UTC

Depth

13.2 km (8.2 mi), shallow

Epicenter

34.280° N, 118.681° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.7 km horizontally, 1.7 km in depth

Depth from

From location

Station coverage gap

56°

Stations used

10

• Santa Susana, CaliforniaPopulation 1,037. Forecast3 kmNNW
• Chatsworth, CaliforniaPopulation 41,255. Forecast8 kmWNW
• Simi Valley, CaliforniaPopulation 126,788. Forecast9 kmE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast48 kmWNW

After

1. 1.52km NNW of Frazier Park, CASat, Nov 25, 8:52 PM PST · 17479 days ago · 10 km deep · 67 km away
2. 2.515km W of Manhattan Beach, CAMon, Nov 27, 3:52 AM PST · 17477 days ago · 2 km deep · 48 km away
3. 2.14km NNE of Silver Lake, CATue, Nov 28, 2:47 PM PST · 17476 days ago · 9 km deep · 43 km away
4. 1.713km SW of Ojai, CAThu, Nov 30, 2:11 PM PST · 17474 days ago · 1 km deep · 63 km away
5. 1.93km WSW of Port Hueneme, CAThu, Nov 30, 10:54 PM PST · 17473 days ago · 14 km deep · 52 km away
6. 1.915km N of Grapevine, CAFri, Dec 1, 2:52 PM PST · 17473 days ago · 0 km deep · 92 km away
7. 1.912km NNW of Chatsworth, CASun, Dec 3, 7:13 PM PST · 17471 days ago · 21 km deep · 9 km away
8. 2.212km NNE of Simi Valley, CASun, Dec 3, 8:46 PM PST · 17471 days ago · 15 km deep · 9 km away
9. 2.512km ESE of Piru, CASun, Dec 3, 8:52 PM PST · 17471 days ago · 12 km deep · 10 km away
10. 3.36km SW of Santa Barbara, CAWed, Dec 6, 2:03 AM PST · 17468 days ago · 9 km deep · 98 km away
11. 1.76km SSW of Santa Barbara, CAWed, Dec 6, 2:41 AM PST · 17468 days ago · 6 km deep · 97 km away
12. 2.38km SW of Santa Barbara, CAWed, Dec 6, 3:21 AM PST · 17468 days ago · 4 km deep · 99 km away
13. 1.68km ENE of Santa Clarita, CAWed, Dec 6, 10:56 AM PST · 17468 days ago · 15 km deep · 30 km away
14. 1.721km SSW of Santa Barbara, CAThu, Dec 7, 1:46 AM PST · 17467 days ago · 0 km deep · 98 km away
15. 1.714km SSW of Santa Barbara, CAFri, Dec 8, 3:55 PM PST · 17466 days ago · 6 km deep · 99 km away
16. 2.616km NNE of Avalon, CASat, Dec 9, 3:01 PM PST · 17465 days ago · 0 km deep · 99 km away
17. 1.82km WSW of Compton, CASun, Dec 10, 7:43 AM PST · 17464 days ago · 6 km deep · 59 km away
18. 2.12km SSW of Valencia, CASun, Dec 10, 10:41 AM PST · 17464 days ago · 4 km deep · 20 km away
19. 2.58km WSW of Marina del Rey, CAMon, Dec 11, 8:01 PM PST · 17463 days ago · 11 km deep · 40 km away
20. 2.510km WSW of Newport Beach, CAWed, Dec 13, 1:52 AM PST · 17461 days ago · 2 km deep · 99 km away
21. 1.73km WSW of Lakewood, CAWed, Dec 13, 6:20 PM PST · 17461 days ago · 6 km deep · 68 km away
22. 1.63km SE of Oak Park, CAWed, Dec 13, 8:10 PM PST · 17461 days ago · 9 km deep · 15 km away
23. 3.22km SE of Carpinteria, CAThu, Dec 14, 12:55 AM PST · 17460 days ago · 16 km deep · 77 km away
24. 1.96km WSW of Santa Barbara, CAFri, Dec 15, 9:01 AM PST · 17459 days ago · 7 km deep · 100 km away
25. 1.812km NNE of Lake View Terrace, CASat, Dec 16, 11:35 AM PST · 17458 days ago · 6 km deep · 35 km away
26. 2.38km SE of Camarillo, CASat, Dec 16, 2:36 PM PST · 17458 days ago · 0 km deep · 31 km away
27. 1.617km SSE of Tehachapi, CATue, Dec 19, 6:56 AM PST · 17455 days ago · 11 km deep · 82 km away
28. 1.613km SSW of Santa Barbara, CATue, Dec 19, 9:51 AM PST · 17455 days ago · 3 km deep · 98 km away
29. 2.110km SW of Santa Barbara, CATue, Dec 19, 12:56 PM PST · 17455 days ago · 7 km deep · 100 km away
30. 2.412km S of Santa Barbara, CASat, Dec 23, 11:06 PM PST · 17450 days ago · 8 km deep · 92 km away
31. 2.28km ESE of Santa Clarita, CASun, Dec 24, 10:19 AM PST · 17450 days ago · 11 km deep · 27 km away
32. 1.812km SSW of Agua Dulce, CATue, Dec 26, 10:01 AM PST · 17448 days ago · 8 km deep · 32 km away
33. 1.78km NNE of Ventura, CAWed, Dec 27, 4:22 AM PST · 17447 days ago · 4 km deep · 46 km away
34. 1.86km E of Santa Clarita, CAWed, Dec 27, 5:14 PM PST · 17447 days ago · 10 km deep · 27 km away
35. 2.412km WNW of Malibu, CAThu, Dec 28, 4:20 PM PST · 17446 days ago · 12 km deep · 34 km away
36. 1.513km NW of Malibu, CAThu, Dec 28, 4:20 PM PST · 17446 days ago · 17 km deep · 32 km away
37. 2.54km ENE of Hawthorne, CAThu, Dec 28, 10:30 PM PST · 17445 days ago · 16 km deep · 52 km away
38. 2.27km ESE of Santa Clarita, CAFri, Dec 29, 5:02 PM PST · 17445 days ago · 2 km deep · 27 km away
39. 2.220km SSW of Santa Cruz Is. (E end), CASat, Dec 30, 6:45 AM PST · 17444 days ago · 11 km deep · 95 km away
40. 2.320km N of Pine Mountain Club, CASat, Dec 30, 9:24 AM PST · 17444 days ago · 1 km deep · 93 km away
41. 3.010km N of Pine Mountain Club, CAMon, Jan 1, 12:38 PM PST · 17442 days ago · 0 km deep · 86 km away
42. 5.213km S of Malibu Beach, CAMon, Jan 1, 3:14 PM PST · 17442 days ago · 13 km deep · 40 km away
43. 3.06km SE of Agoura Hills, CAMon, Jan 1, 3:15 PM PST · 17442 days ago · 10 km deep · 21 km away
44. 2.98km SE of Malibu, CAMon, Jan 1, 3:19 PM PST · 17442 days ago · 13 km deep · 36 km away
45. 2.89km S of Malibu Beach, CAMon, Jan 1, 3:20 PM PST · 17442 days ago · 6 km deep · 37 km away
46. 3.09km S of Malibu Beach, CAMon, Jan 1, 3:21 PM PST · 17442 days ago · 8 km deep · 37 km away
47. 3.412km S of Malibu Beach, CAMon, Jan 1, 3:22 PM PST · 17442 days ago · 12 km deep · 39 km away
48. 3.012km S of Malibu Beach, CAMon, Jan 1, 3:24 PM PST · 17442 days ago · 8 km deep · 40 km away
49. 2.714km S of Malibu Beach, CAMon, Jan 1, 3:25 PM PST · 17442 days ago · 12 km deep · 42 km away
50. 2.08km S of Malibu Beach, CAMon, Jan 1, 3:26 PM PST · 17442 days ago · 11 km deep · 35 km away
51. 2.013km S of Malibu Beach, CAMon, Jan 1, 3:26 PM PST · 17442 days ago · 10 km deep · 40 km away
52. 2.99km S of Malibu Beach, CAMon, Jan 1, 3:26 PM PST · 17442 days ago · 13 km deep · 36 km away
53. 1.511km S of Malibu Beach, CAMon, Jan 1, 3:27 PM PST · 17442 days ago · 0 km deep · 38 km away
54. 1.510km S of Malibu Beach, CAMon, Jan 1, 3:29 PM PST · 17442 days ago · 5 km deep · 37 km away
55. 3.812km S of Malibu Beach, CAMon, Jan 1, 3:29 PM PST · 17442 days ago · 14 km deep · 39 km away
56. 1.510km S of Malibu Beach, CAMon, Jan 1, 3:30 PM PST · 17442 days ago · 6 km deep · 37 km away
57. 2.011km S of Malibu Beach, CAMon, Jan 1, 3:32 PM PST · 17442 days ago · 9 km deep · 39 km away
58. 3.012km S of Malibu Beach, CAMon, Jan 1, 3:32 PM PST · 17442 days ago · 9 km deep · 39 km away
59. 2.514km S of Malibu Beach, CAMon, Jan 1, 3:32 PM PST · 17442 days ago · 17 km deep · 42 km away
60. 1.59km SSW of Malibu Beach, CAMon, Jan 1, 3:36 PM PST · 17442 days ago · 14 km deep · 37 km away

The first 60 of 188.

Before

1. 1.59km ESE of Santa Clarita, CAFri, Nov 24, 8:47 PM PST · 17480 days ago · 9 km deep · 27 km away
2. 1.613km N of Fillmore, CATue, Nov 21, 7:21 PM PST · 17483 days ago · 19 km deep · 35 km away
3. 1.56km WSW of Wrightwood, CATue, Nov 21, 1:34 PM PST · 17483 days ago · 6 km deep · 91 km away
4. 2.84km W of Lakewood, CASun, Nov 19, 10:00 AM PST · 17485 days ago · 11 km deep · 66 km away
5. 3.04km W of Lakewood, CASun, Nov 19, 9:40 AM PST · 17485 days ago · 12 km deep · 66 km away
6. 1.79km WSW of Ojai, CASun, Nov 19, 6:36 AM PST · 17485 days ago · 8 km deep · 62 km away
7. 2.910km W of Tehachapi, CASun, Nov 19, 6:04 AM PST · 17485 days ago · 4 km deep · 95 km away
8. 2.216km SSW of Rancho Palos Verdes, CASun, Nov 19, 1:38 AM PST · 17485 days ago · 0 km deep · 76 km away
9. 2.64km W of Lakewood, CASat, Nov 18, 8:20 PM PST · 17486 days ago · 11 km deep · 67 km away
10. 2.83km S of Las Flores, CASat, Nov 18, 7:55 PM PST · 17486 days ago · 12 km deep · 30 km away
11. 2.212km SE of Carpinteria, CAFri, Nov 17, 3:51 PM PST · 17487 days ago · 3 km deep · 69 km away
12. 2.40km S of Santa Barbara, CAFri, Nov 17, 8:46 AM PST · 17487 days ago · 15 km deep · 95 km away
13. 1.83km W of Santa Barbara, CAFri, Nov 17, 8:38 AM PST · 17487 days ago · 15 km deep · 98 km away
14. 2.38km SSW of Santa Barbara, CAThu, Nov 16, 10:26 AM PST · 17488 days ago · 10 km deep · 96 km away
15. 3.33km NW of Rancho Cucamonga, CAThu, Nov 16, 5:28 AM PST · 17488 days ago · 7 km deep · 100 km away
16. 1.76km WNW of Castaic, CAWed, Nov 15, 5:08 AM PST · 17489 days ago · 5 km deep · 26 km away
17. 2.34km W of Castaic, CAWed, Nov 15, 5:05 AM PST · 17489 days ago · 0 km deep · 23 km away
18. 3.21km SSE of Santa Barbara, CAMon, Nov 13, 8:50 AM PST · 17491 days ago · 16 km deep · 94 km away
19. 1.52km NW of Santa Barbara, CAMon, Nov 13, 8:50 AM PST · 17491 days ago · 13 km deep · 96 km away
20. 3.20km WSW of Santa Barbara, CAMon, Nov 13, 8:49 AM PST · 17491 days ago · 17 km deep · 95 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3343706. Read Sat, Oct 3, 2026, 4:37 PM UTC.