M2.1 earthquake 10km NNE of Simi Valley, CA

Magnitude

2.1 (ML, local (Richter)), micro

Magnitude from

Southern California Seismic Network

Local time

Fri, Jul 20, 1979, 1:29 AM PDT

UTC

1979-07-20 08:29:15 UTC

Depth

15.5 km (9.6 mi), shallow

Epicenter

34.355° N, 118.701° W

Region

California

Tsunami flag

No

Status

Reviewed by a seismologist

Location uncertainty

About 0.4 km horizontally, 0.7 km in depth

Magnitude uncertainty

±0.40

Depth from

From location

Station coverage gap

87°

Stations used

21

• Val Verde, CaliforniaPopulation 2,468. Forecast11 kmSSW
• Simi Valley, CaliforniaPopulation 126,788. Forecast12 kmNE
• Los Angeles, CaliforniaPopulation 3,820,914. Forecast54 kmNW

After

1. 1.525km SSW of Maricopa, CATue, Jul 24, 9:04 AM PDT · 17239 days ago · 15 km deep · 89 km away
2. 1.517km WNW of Malibu, CAThu, Jul 26, 11:55 AM PDT · 17237 days ago · 13 km deep · 42 km away
3. 1.717km WNW of Grapevine, CAFri, Jul 27, 10:18 PM PDT · 17236 days ago · 5 km deep · 80 km away
4. 1.916km N of Santa Cruz Is. (E end), CASat, Jul 28, 4:06 PM PDT · 17235 days ago · 4 km deep · 79 km away
5. 2.020km S of Carpinteria, CASat, Jul 28, 4:54 PM PDT · 17235 days ago · 10 km deep · 75 km away
6. 1.520km S of Carpinteria, CASat, Jul 28, 5:42 PM PDT · 17235 days ago · 12 km deep · 76 km away
7. 1.719km S of Carpinteria, CASun, Jul 29, 3:25 AM PDT · 17235 days ago · 14 km deep · 73 km away
8. 2.635km NW of Santa Barbara Is., CAMon, Jul 30, 3:56 AM PDT · 17234 days ago · 11 km deep · 99 km away
9. 2.517km NW of Grapevine, CAMon, Jul 30, 5:02 PM PDT · 17233 days ago · 2 km deep · 83 km away
10. 2.218km NW of Grapevine, CAMon, Jul 30, 5:53 PM PDT · 17233 days ago · 0 km deep · 84 km away
11. 2.73km NE of Long Beach, CATue, Jul 31, 5:51 AM PDT · 17232 days ago · 2 km deep · 79 km away
12. 2.03km SSW of Willowbrook, CATue, Jul 31, 5:52 AM PDT · 17232 days ago · 0 km deep · 65 km away
13. 1.72km S of Tarzana, CATue, Jul 31, 7:47 AM PDT · 17232 days ago · 0 km deep · 26 km away
14. 1.98km NNE of Lake View Terrace, CATue, Jul 31, 11:55 AM PDT · 17232 days ago · 9 km deep · 35 km away
15. 1.913km WNW of Malibu, CAWed, Aug 1, 3:39 AM PDT · 17232 days ago · 9 km deep · 41 km away
16. 1.61km NW of Valinda, CAWed, Aug 1, 7:15 AM PDT · 17231 days ago · 6 km deep · 77 km away
17. 1.74km NE of Santa Paula, CAWed, Aug 1, 12:03 PM PDT · 17231 days ago · 6 km deep · 30 km away
18. 2.220km WSW of Ventura, CAWed, Aug 1, 3:03 PM PDT · 17231 days ago · 10 km deep · 69 km away
19. 2.519km SSE of Carpinteria, CAWed, Aug 1, 3:28 PM PDT · 17231 days ago · 11 km deep · 70 km away
20. 2.620km SSE of Carpinteria, CAWed, Aug 1, 11:33 PM PDT · 17231 days ago · 12 km deep · 70 km away
21. 1.717km W of Malibu, CAFri, Aug 3, 5:41 AM PDT · 17229 days ago · 9 km deep · 46 km away
22. 2.315km N of Fillmore, CAFri, Aug 3, 2:24 PM PDT · 17229 days ago · 12 km deep · 30 km away
23. 2.04km ESE of Santa Clarita, CAFri, Aug 3, 7:52 PM PDT · 17229 days ago · 19 km deep · 22 km away
24. 2.02km SW of Cerritos, CAMon, Aug 6, 12:03 AM PDT · 17227 days ago · 5 km deep · 81 km away
25. 1.62km SSE of Bellflower, CAMon, Aug 6, 6:55 AM PDT · 17226 days ago · 22 km deep · 77 km away
26. 2.810km SSW of Agua Dulce, CAMon, Aug 6, 11:04 AM PDT · 17226 days ago · 8 km deep · 30 km away
27. 1.918km W of Ventura, CAMon, Aug 6, 10:22 PM PDT · 17226 days ago · 14 km deep · 67 km away
28. 1.719km SSE of Carpinteria, CAMon, Aug 6, 11:53 PM PDT · 17226 days ago · 4 km deep · 68 km away
29. 1.918km WSW of Ventura, CATue, Aug 7, 1:00 AM PDT · 17226 days ago · 4 km deep · 67 km away
30. 2.118km WSW of Ventura, CATue, Aug 7, 12:49 PM PDT · 17225 days ago · 3 km deep · 67 km away
31. 2.28km SSW of Malibu Beach, CAWed, Aug 8, 2:34 AM PDT · 17225 days ago · 12 km deep · 43 km away
32. 1.614km S of Santa Barbara, CAFri, Aug 10, 9:57 PM PDT · 17222 days ago · 21 km deep · 91 km away
33. 2.28km S of Malibu Beach, CASat, Aug 11, 9:00 AM PDT · 17221 days ago · 11 km deep · 44 km away
34. 2.010km ENE of Pine Mountain Club, CASat, Aug 11, 4:23 PM PDT · 17221 days ago · 14 km deep · 68 km away
35. 1.621km NW of Grapevine, CASat, Aug 11, 11:10 PM PDT · 17221 days ago · 6 km deep · 89 km away
36. 2.24km NNE of View Park-Windsor Hills, CASat, Aug 11, 11:42 PM PDT · 17221 days ago · 8 km deep · 50 km away
37. 2.49km WSW of El Segundo, CAMon, Aug 13, 1:16 AM PDT · 17220 days ago · 2 km deep · 54 km away
38. 1.63km S of Charter Oak, CAMon, Aug 13, 4:25 AM PDT · 17219 days ago · 15 km deep · 85 km away
39. 1.86km SSE of Llano, CAMon, Aug 13, 5:46 AM PDT · 17219 days ago · 4 km deep · 86 km away
40. 1.819km NW of Grapevine, CAMon, Aug 13, 6:59 AM PDT · 17219 days ago · 6 km deep · 87 km away
41. 1.520km NW of Grapevine, CAMon, Aug 13, 7:07 AM PDT · 17219 days ago · 0 km deep · 87 km away
42. 1.518km NW of Grapevine, CAMon, Aug 13, 7:25 AM PDT · 17219 days ago · 7 km deep · 86 km away
43. 2.417km W of Ventura, CATue, Aug 14, 6:58 PM PDT · 17218 days ago · 11 km deep · 66 km away
44. 1.618km W of Ventura, CATue, Aug 14, 7:03 PM PDT · 17218 days ago · 4 km deep · 68 km away
45. 2.017km WSW of Ventura, CATue, Aug 14, 9:05 PM PDT · 17218 days ago · 5 km deep · 66 km away
46. 1.619km WSW of Ventura, CATue, Aug 14, 11:45 PM PDT · 17218 days ago · 4 km deep · 68 km away
47. 1.619km W of Ventura, CAWed, Aug 15, 6:55 AM PDT · 17217 days ago · 3 km deep · 68 km away
48. 1.610km SSW of Agua Dulce, CAWed, Aug 15, 10:48 AM PDT · 17217 days ago · 6 km deep · 30 km away
49. 1.92km NW of Villa Park, CAThu, Aug 16, 12:02 AM PDT · 17217 days ago · 10 km deep · 100 km away
50. 2.318km WSW of Ventura, CASat, Aug 18, 7:17 PM PDT · 17214 days ago · 14 km deep · 67 km away
51. 2.021km SSE of Santa Cruz Is. (E end), CASun, Aug 19, 4:01 PM PDT · 17213 days ago · 6 km deep · 89 km away
52. 3.210km NNW of Santa Barbara, CATue, Aug 21, 6:18 AM PDT · 17211 days ago · 11 km deep · 98 km away
53. 2.37km SW of Ojai, CATue, Aug 21, 10:31 AM PDT · 17211 days ago · 13 km deep · 55 km away
54. 1.515km NNE of Pine Mountain Club, CAWed, Aug 22, 2:17 AM PDT · 17211 days ago · 6 km deep · 79 km away
55. 2.02km WNW of Lakewood, CAThu, Aug 23, 5:59 AM PDT · 17209 days ago · 16 km deep · 75 km away
56. 1.87km SSW of Malibu Beach, CAFri, Aug 24, 11:28 PM PDT · 17208 days ago · 11 km deep · 42 km away
57. 1.918km S of Carpinteria, CAMon, Aug 27, 8:30 PM PDT · 17205 days ago · 17 km deep · 75 km away
58. 3.99km WSW of Pinon Hills, CATue, Aug 28, 1:57 AM PDT · 17205 days ago · 7 km deep · 88 km away
59. 1.58km SSW of Malibu Beach, CATue, Aug 28, 12:42 PM PDT · 17204 days ago · 14 km deep · 43 km away
60. 2.38km S of Malibu Beach, CATue, Aug 28, 10:09 PM PDT · 17204 days ago · 9 km deep · 44 km away

The first 60 of 92.

Before

1. 1.918km NW of Tehachapi, CAWed, Jul 18, 10:55 AM PDT · 17245 days ago · 6 km deep · 99 km away
2. 1.56km S of Tehachapi, CAWed, Jul 18, 7:02 AM PDT · 17245 days ago · 9 km deep · 83 km away
3. 2.18km WSW of Santa Barbara, CAFri, Jul 13, 1:07 PM PDT · 17250 days ago · 13 km deep · 98 km away
4. 2.020km N of Santa Cruz Is. (E end), CAFri, Jul 13, 10:42 AM PDT · 17250 days ago · 6 km deep · 75 km away
5. 1.77km NNW of Chatsworth, CATue, Jul 10, 1:51 AM PDT · 17254 days ago · 15 km deep · 8 km away
6. 1.98km NNW of Chatsworth, CATue, Jul 10, 12:15 AM PDT · 17254 days ago · 11 km deep · 7 km away
7. 1.619km SSE of Carpinteria, CASun, Jul 8, 6:18 AM PDT · 17255 days ago · 6 km deep · 72 km away
8. 1.720km N of Santa Cruz Is. (E end), CASat, Jul 7, 8:24 PM PDT · 17256 days ago · 4 km deep · 77 km away
9. 2.219km SSE of Carpinteria, CASat, Jul 7, 8:00 PM PDT · 17256 days ago · 11 km deep · 72 km away
10. 3.48km SW of Santa Barbara, CATue, Jul 3, 6:35 AM PDT · 17260 days ago · 14 km deep · 98 km away
11. 3.28km SW of Santa Barbara, CATue, Jul 3, 6:03 AM PDT · 17260 days ago · 14 km deep · 98 km away
12. 2.216km WNW of Tehachapi, CASat, Jun 30, 9:10 PM PDT · 17263 days ago · 9 km deep · 90 km away
13. 2.916km W of Malibu, CAFri, Jun 29, 6:54 AM PDT · 17264 days ago · 13 km deep · 45 km away
14. 2.88km NNW of Upland, CAThu, Jun 28, 3:21 PM PDT · 17265 days ago · 8 km deep · 96 km away
15. 2.119km S of Carpinteria, CAThu, Jun 28, 7:37 AM PDT · 17265 days ago · 14 km deep · 74 km away
16. 1.818km S of Carpinteria, CAWed, Jun 27, 8:06 PM PDT · 17266 days ago · 11 km deep · 74 km away
17. 1.717km N of Santa Cruz Is. (E end), CAWed, Jun 27, 7:30 PM PDT · 17266 days ago · 6 km deep · 78 km away
18. 1.519km S of Carpinteria, CAWed, Jun 27, 7:19 PM PDT · 17266 days ago · 4 km deep · 75 km away
19. 1.918km S of Carpinteria, CAWed, Jun 27, 7:04 PM PDT · 17266 days ago · 9 km deep · 73 km away
20. 1.820km S of Carpinteria, CAWed, Jun 27, 6:55 PM PDT · 17266 days ago · 18 km deep · 75 km away

From the USGS Earthquake Hazards Program and its partner networks, event ci3350751. Read Sun, Oct 4, 2026, 10:50 PM UTC.