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M1.1 earthquake 46 km E of San Diego Country Estates, California, United States

A magnitude 1.1 earthquake struck 46 km E of San Diego Country Estates, California, United States at 10:50 local time (17:50 UTC) on 29 Oct 2026, at a depth of 6 km, according to USGS. The solution is preliminary and may be revised.

Data: USGS · updated 2026-10-29 17:54 UTC · automatic solution

Magnitude
1.1micro
local magnitude (Richter) (ml)
Depth
6.3 km
Status
Automatic
Origin time
2026-10-29 17:50:40 UTC
Local: 29 Oct 2026, 10:50:40 (America/Los Angeles)
Epicentre
33.030° N, 116.292° 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
San Diego Country EstatesCalifornia, United States · pop. 10,10946 kmINot felt
AlpineCalifornia, United States · pop. 14,23649 kmINot felt
RamonaCalifornia, United States · pop. 20,29254 kmINot felt
TecateBaja California, Mexico · pop. 64,76460 kmINot felt
LakesideCalifornia, United States · pop. 20,64862 kmINot felt
Winter GardensCalifornia, United States · pop. 20,63164 kmINot felt
Chula VistaCalifornia, United States · pop. 265,75785 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,45288 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.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · CIheadlineSouthern California Seismic Network via U.S. Geological Survey1.1 mlwas 1.16.3 km33.03° N, 116.29° W–Automatic · 1 revision

How big was it?

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

It released roughly the energy of 567 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 6 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.1 releases about 1.2× the energy of M1.0, and its waves are about 1.1× taller on a seismogram. Energy: 567 g 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

38 later earthquakes within 30 km; the largest was M1.9 12 days ago. 31 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
2.300.26
3.520.711
4.820.97
7.311.216
11.750.412
12.050.67
33.041.410
35.390.98
39.901.97
40.540.612
50.350.519
51.860.812
52.041.110
73.621.17
89.341.28
96.820.89
97.061.19
98.430.89
107.790.910
109.971.411
113.380.214
177.481.111
190.600.914
205.270.913
211.211.114
224.861.39
229.470.910
229.980.89
231.451.09
245.121.011
245.751.010
260.940.65
271.690.411
271.981.010
288.001.011
291.551.210
325.180.712
338.620.89
  1. 1.945 km E of San Diego Country Estates, California, United States10-31 09:44
  2. 1.429 km E of San Diego Country Estates, California, United States11-03 07:48
  3. 1.427 km S of Oasis, California, United States10-31 02:53
  4. 1.330 km E of San Diego Country Estates, California, United States11-08 02:42
  5. 1.252 km ENE of Tecate, Baja California, Mexico11-10 21:23
  6. 1.232 km E of San Diego Country Estates, California, United States11-02 11:10
  7. 1.220 km ENE of Alpine, California, United States10-30 01:09
  8. 1.139 km ENE of San Diego Country Estates, California, United States10-31 21:52
  9. 1.130 km S of Oasis, California, United States11-01 19:27
  10. 1.128 km SSW of Oasis, California, United States11-06 03:19
  11. 1.132 km E of San Diego Country Estates, California, United States11-07 13:03
  12. 1.134 km E of San Diego Country Estates, California, United States11-02 18:54
  13. 1.052 km ENE of Tecate, Baja California, Mexico11-10 01:49
  14. 1.030 km E of San Diego Country Estates, California, United States11-08 09:17
  15. 1.052 km ENE of Tecate, Baja California, Mexico11-08 22:58
  16. 1.052 km NE of Tecate, Baja California, Mexico11-08 23:35
  17. 1.036 km ENE of San Diego Country Estates, California, United States11-10 17:50
  18. 0.934 km E of San Diego Country Estates, California, United States11-07 07:06
  19. 0.944 km S of Oasis, California, United States10-31 05:14
  20. 0.938 km SSW of Oasis, California, United States11-03 05:38
  21. 0.940 km SW of Oasis, California, United States11-06 16:26
  22. 0.929 km ENE of San Diego Country Estates, California, United States10-29 22:40
  23. 0.920 km ENE of San Diego Country Estates, California, United States11-08 07:18
  24. 0.830 km E of San Diego Country Estates, California, United States11-08 07:49
  25. 0.834 km E of San Diego Country Estates, California, United States11-02 18:39

Did you feel it?

Reports from people help show where shaking was strong. They are anonymous and shown here in aggregate.

Reports close 14 days after an earthquake.

Reports on SeismoAtlas

No reports yet.

Event id ci41569000. First recorded here 29 Oct 2026, 17:53:10 UTC. Solutions: USGS · CI (usgs:ci41569000). Cite as: SeismoAtlas, “M1.1 earthquake 46 km E of San Diego Country Estates, California, United States”, https://seismoatlas.com/earthquake/ci41569000-m1-1-earthquake-46-km-e-of-san-diego-country-estates-california-united-states, data from USGS.

JSON: /api/v1/events/ci41569000. SeismoAtlas is not an official warning service.