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M0.8 earthquake 35 km ENE of Valley Center, California, United States

A magnitude 0.8 earthquake struck 35 km ENE of Valley Center, California, United States at 11:56 local time (19:56 UTC) on 9 Nov 2026, at a depth of 13 km, according to USGS.

Data: USGS · updated 2026-11-11 16:46 UTC · reviewed

Magnitude
0.8micro
local magnitude (Richter) (ml)
Depth
13 km
Status
Reviewed
Origin time
2026-11-09 19:56:07 UTC
Local: 9 Nov 2026, 11:56:07 (America/Los Angeles)
Epicentre
33.332° N, 116.679° 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. 9,27735 kmINot felt
RamonaCalifornia, United States · pop. 20,29237 kmINot felt
EscondidoCalifornia, United States · pop. 151,03845 kmINot felt
TemeculaCalifornia, United States · pop. 110,00347 kmINot felt
La QuintaCalifornia, United States · pop. 40,47650 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,45282 kmINot felt
Chula VistaCalifornia, United States · pop. 265,75786 kmINot felt
RiversideCalifornia, United States · pop. 317,26196 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 Survey0.8 mlwas 0.813 km33.33° N, 116.68° W–Reviewed · 1 revision

How big was it?

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

It released roughly the energy of 239 g 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 13 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.0 releases about 2× the energy of M0.8, and its waves are about 1.6× taller on a seismogram. Energy: 477 g of TNT vs 239 g of TNT.

Each square is the energy of one M0.8. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

38 later earthquakes within 30 km; the largest was M1.5 15 h ago. 82 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.8

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
5.890.26
8.760.411
12.130.94
13.280.26
13.600.613
14.050.811
17.300.27
23.340.612
23.370.18
23.380.411
23.500.812
24.740.36
25.131.413
25.180.712
25.451.317
28.100.66
31.320.710
31.410.212
33.680.35
37.030.36
43.700.813
47.110.44
49.230.26
50.821.42
51.450.910
53.821.312
53.821.212
54.240.514
54.730.16
56.600.16
58.440.412
59.090.712
59.601.56
59.790.617
64.690.96
65.820.54
69.050.44
69.550.37
  1. 1.541 km ENE of Valley Center, California, United States11-12 07:32
  2. 1.422 km SSE of Valle Vista, California, United States11-10 21:03
  3. 1.439 km WSW of Oasis, California, United States11-11 22:45
  4. 1.316 km NNE of Ramona, California, United States11-10 21:23
  5. 1.322 km SSE of Valle Vista, California, United States11-12 01:45
  6. 1.222 km SSE of Valle Vista, California, United States11-12 01:45
  7. 0.929 km SSE of Valle Vista, California, United States11-10 08:03
  8. 0.930 km SW of Oasis, California, United States11-11 23:23
  9. 0.929 km SE of Valle Vista, California, United States11-12 12:37
  10. 0.832 km SW of La Quinta, California, United States11-10 09:59
  11. 0.822 km SSE of Valle Vista, California, United States11-10 19:25
  12. 0.826 km SW of La Quinta, California, United States11-11 15:38
  13. 0.722 km SE of Valle Vista, California, United States11-10 21:06
  14. 0.723 km NNE of Ramona, California, United States11-11 03:15
  15. 0.726 km ENE of San Diego Country Estates, California, United States11-12 07:01
  16. 0.629 km SE of Valle Vista, California, United States11-11 00:02
  17. 0.622 km SSE of Valle Vista, California, United States11-10 19:16
  18. 0.629 km SW of La Quinta, California, United States11-10 09:32
  19. 0.624 km NE of San Diego Country Estates, California, United States11-12 07:43
  20. 0.526 km SW of La Quinta, California, United States11-12 02:10
  21. 0.539 km SSE of Valle Vista, California, United States11-12 13:45
  22. 0.428 km SW of Cathedral City, California, United States11-10 04:41
  23. 0.428 km NNE of San Diego Country Estates, California, United States11-12 06:22
  24. 0.439 km SSE of Valle Vista, California, United States11-12 16:59
  25. 0.428 km NNE of San Diego Country Estates, California, United States11-10 19:18

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Reports on SeismoAtlas

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Event id ci41360343. First recorded here 9 Nov 2026, 20:00:41 UTC. Solutions: USGS · CI (usgs:ci41360343). Cite as: SeismoAtlas, “M0.8 earthquake 35 km ENE of Valley Center, California, United States”, https://seismoatlas.com/earthquake/ci41360343-m0-8-earthquake-35-km-ene-of-valley-center-california-united-states, data from USGS.

JSON: /api/v1/events/ci41360343. SeismoAtlas is not an official warning service.