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M1.3 earthquake 41 km ENE of Valley Center, California, United States

A magnitude 1.3 earthquake struck 41 km ENE of Valley Center, California, United States at 03:06 local time (11:06 UTC) on 6 Nov 2026, at a depth of 7 km, according to USGS.

revised from M1.4

Data: USGS · updated 2026-11-06 20:19 UTC · reviewed

Magnitude
1.3micro
local magnitude (Richter) (ml)
revised from 1.4
Depth
6.6 km
Status
Reviewed
Origin time
2026-11-06 11:06:21 UTC
Local: 6 Nov 2026, 03:06:21 (America/Los Angeles)
Epicentre
33.410° N, 116.646° W

Circles show this event and others within 30 km from 7 days before to 30 days after. Lines: plate boundaries and GEM active faults. Open on the live map

Nearby places

Distance and estimated shaking at nearby places
PlaceDistanceEst. shaking
Valley CenterCalifornia, United States · pop. 9,27741 kmINot felt
La QuintaCalifornia, United States · pop. 40,47642 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86942 kmINot felt
Cathedral CityCalifornia, United States · pop. 53,82644 kmINot felt
RamonaCalifornia, United States · pop. 20,29246 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,45290 kmINot felt
RiversideCalifornia, United States · pop. 317,26192 kmINot felt
Chula VistaCalifornia, United States · pop. 265,75795 kmINot felt

Shaking is an estimate from the intensity prediction equation of Allen, Wald & Worden (2012), not an observation. Local ground and buildings can change it by a level or more.

Every agency's solution

Agencies locate earthquakes with their own stations and methods, so their numbers differ. We match reports of the same event by time, distance and magnitude and show them side by side. The headline uses USGS · CI, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · CIheadlineSouthern California Seismic Network via U.S. Geological Survey1.3 mlwas 1.36.6 km33.41° N, 116.65° W–Reviewed · 2 revisions

How big was it?

Usually not felt. Recorded by nearby seismometers; thousands occur worldwide every day.

It released roughly the energy of 1 kg of TNT. Magnitude is logarithmic: each whole step means about 32 times more energy and 10 times larger waves on a seismogram. Depth matters too: at 7 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.3 releases about 2.4× the energy of M1.0, and its waves are about 1.8× taller on a seismogram. Energy: 1 kg of TNT vs 477 g of TNT.

Each square is the energy of one M1.0. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

71 later earthquakes within 30 km; the largest was M1.8 5 days ago. 85 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.3

71 later earthquakes nearby. Aftershock rates typically fall off roughly as 1/time (Omori's law).

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.780.37
2.430.26
4.670.66
5.010.35
6.270.712
6.840.47
13.31-0.17
14.830.913
16.670.612
23.231.811
34.920.27
38.810.27
39.780.412
40.260.74
41.700.46
41.710.16
42.270.712
42.660.56
54.660.713
56.411.16
57.520.713
57.521.014
59.760.510
67.490.66
71.010.913
74.591.213
75.500.613
75.500.713
75.680.65
76.280.514
78.150.914
79.011.06
79.090.76
80.830.813
86.720.26
89.590.411
89.611.212
92.960.94
94.110.26
94.430.613
94.880.811
98.130.27
104.170.612
104.200.18
104.210.411
104.320.812
105.570.36
105.951.413
106.000.712
108.930.66
112.150.710
112.240.212
114.510.35
117.850.36
124.530.813
127.940.44
130.060.26
131.651.42
132.280.910
134.651.312
134.651.212
135.070.514
135.560.16
137.430.16
139.270.412
140.431.56
140.620.617
145.520.96
146.650.54
149.880.44
150.380.37
  1. 1.825 km SSW of La Quinta, California, United States11-07 10:20
  2. 1.541 km ENE of Valley Center, California, United States11-12 07:32
  3. 1.422 km SSE of Valle Vista, California, United States11-10 21:03
  4. 1.439 km WSW of Oasis, California, United States11-11 22:45
  5. 1.322 km SSE of Valle Vista, California, United States11-12 01:45
  6. 1.225 km SW of La Quinta, California, United States11-09 13:41
  7. 1.229 km SW of Oasis, California, United States11-10 04:42
  8. 1.222 km SSE of Valle Vista, California, United States11-12 01:45
  9. 1.122 km SW of La Quinta, California, United States11-08 19:31
  10. 1.025 km SW of La Quinta, California, United States11-08 20:37
  11. 1.029 km SE of Valle Vista, California, United States11-09 18:07
  12. 0.930 km WSW of Oasis, California, United States11-09 17:15
  13. 0.923 km SSE of Valle Vista, California, United States11-07 01:56
  14. 0.929 km SSE of Valle Vista, California, United States11-10 08:03
  15. 0.930 km SW of Oasis, California, United States11-11 23:23
  16. 0.929 km SE of Valle Vista, California, United States11-12 12:37
  17. 0.922 km SSE of Valle Vista, California, United States11-09 10:06
  18. 0.832 km SW of La Quinta, California, United States11-10 09:59
  19. 0.835 km ENE of Valley Center, California, United States11-09 19:56
  20. 0.822 km SSE of Valle Vista, California, United States11-10 19:25
  21. 0.826 km SW of La Quinta, California, United States11-11 15:38
  22. 0.722 km SE of Valle Vista, California, United States11-10 21:06
  23. 0.723 km NNE of Ramona, California, United States11-11 03:15
  24. 0.722 km SSE of Valle Vista, California, United States11-06 17:22
  25. 0.724 km SW of La Quinta, California, United States11-09 14:36

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Reports on SeismoAtlas

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Event id ci41359199. First recorded here 6 Nov 2026, 11:09:22 UTC. Solutions: USGS · CI (usgs:ci41359199). Cite as: SeismoAtlas, “M1.3 earthquake 41 km ENE of Valley Center, California, United States”, https://seismoatlas.com/earthquake/ci41359199-m1-3-earthquake-41-km-ene-of-valley-center-california-united-states, data from USGS.

JSON: /api/v1/events/ci41359199. SeismoAtlas is not an official warning service.