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SeismoAtlas

M1.1 earthquake 27 km SSW of La Quinta, California, United States

A magnitude 1.1 earthquake struck 27 km SSW of La Quinta, California, United States at 03:26 local time (10:26 UTC) on 28 Oct 2026, at a depth of 11 km, according to USGS.

revised from M1.3

Data: USGS · updated 2026-10-29 17:59 UTC · reviewed

Magnitude
1.1micro
local magnitude (Richter) (ml)
revised from 1.3
Depth
10.9 km
Status
Reviewed
Origin time
2026-10-28 10:26:13 UTC
Local: 28 Oct 2026, 03:26:13 (America/Los Angeles)
Epicentre
33.429° N, 116.411° 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
La QuintaCalifornia, United States · pop. 40,47627 kmINot felt
OasisCalifornia, United States · pop. 6,89029 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86933 kmINot felt
CoachellaCalifornia, United States · pop. 44,63536 kmINot felt
IndioCalifornia, United States · pop. 87,53337 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,452105 kmINot felt
Chula VistaCalifornia, United States · pop. 265,757108 kmINot felt
RiversideCalifornia, United States · pop. 317,261108 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 Survey1.1 mlwas 1.010.9 km33.43° N, 116.41° 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 674 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 11 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 1.4× the energy of M1.0, and its waves are about 1.3× taller on a seismogram. Energy: 674 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

103 later earthquakes within 30 km; the largest was M2.6 6 days ago. 53 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.1

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
23.880.96
24.500.812
24.610.612
26.070.713
26.811.15
27.981.113
30.530.514
30.690.16
33.860.14
38.960.15
40.930.26
41.15-0.06
58.920.83
65.580.811
66.890.26
71.290.311
72.550.814
73.290.29
77.070.26
83.000.414
83.451.110
83.620.66
85.290.44
88.480.66
91.350.612
95.84-0.26
96.520.57
101.221.86
101.520.56
106.480.87
109.941.112
127.080.913
129.520.36
130.301.014
133.890.112
137.581.113
142.380.515
144.610.66
144.610.211
147.050.46
148.400.712
149.020.07
149.020.515
155.460.713
169.881.014
179.721.013
180.010.713
182.080.813
183.210.712
186.710.510
196.351.310
201.860.512
208.891.111
212.302.67
212.321.17
213.960.16
214.780.27
216.320.413
216.671.37
217.450.37
219.100.26
221.340.66
222.010.914
223.510.47
234.210.710
239.901.811
251.590.27
255.480.27
258.940.712
271.330.713
273.081.16
274.190.713
274.191.014
276.430.510
283.530.711
291.261.213
292.170.613
292.170.713
292.350.65
292.950.514
294.820.914
297.500.813
303.390.26
306.260.411
306.281.212
311.100.613
311.550.811
320.870.18
322.240.36
325.600.66
328.910.212
334.520.36
341.200.813
348.321.42
348.950.910
351.740.514
352.220.16
357.101.56
362.190.96
363.310.54
366.550.44
367.050.37
375.040.86
  1. 2.641 km ENE of Valley Center, California, United States11-06 06:44
  2. 1.825 km SSW of La Quinta, California, United States11-07 10:20
  3. 1.822 km SW of La Quinta, California, United States11-01 15:39
  4. 1.541 km ENE of Valley Center, California, United States11-12 07:32
  5. 1.439 km WSW of Oasis, California, United States11-11 22:45
  6. 1.318 km SW of Oasis, California, United States11-05 14:47
  7. 1.341 km ENE of Valley Center, California, United States11-06 11:06
  8. 1.225 km SW of La Quinta, California, United States11-09 13:41
  9. 1.229 km SW of Oasis, California, United States11-10 04:42
  10. 1.139 km ENE of San Diego Country Estates, California, United States10-31 21:52
  11. 1.139 km ENE of San Diego Country Estates, California, United States10-29 14:25
  12. 1.128 km SSW of Oasis, California, United States11-06 03:19
  13. 1.125 km SW of La Quinta, California, United States11-03 04:01
  14. 1.141 km SW of La Quinta, California, United States11-06 06:45
  15. 1.129 km SE of Valle Vista, California, United States10-29 13:14
  16. 1.129 km SSW of La Quinta, California, United States11-02 00:22
  17. 1.122 km SW of La Quinta, California, United States11-08 19:31
  18. 1.027 km SW of La Quinta, California, United States11-04 22:09
  19. 1.025 km SW of La Quinta, California, United States11-08 20:37
  20. 1.023 km SW of La Quinta, California, United States11-02 20:44
  21. 1.024 km SW of La Quinta, California, United States11-04 12:18
  22. 0.930 km WSW of Oasis, California, United States11-09 17:15
  23. 0.924 km SW of La Quinta, California, United States11-02 17:31
  24. 0.929 km SE of Valle Vista, California, United States10-29 10:19
  25. 0.940 km SW of Oasis, California, United States11-06 16:26

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 ci41568064. First recorded here 28 Oct 2026, 10:29:29 UTC. Solutions: USGS · CI (usgs:ci41568064). Cite as: SeismoAtlas, “M1.1 earthquake 27 km SSW of La Quinta, California, United States”, https://seismoatlas.com/earthquake/ci41568064-m1-1-earthquake-27-km-ssw-of-la-quinta-california-united-states, data from USGS.

JSON: /api/v1/events/ci41568064. SeismoAtlas is not an official warning service.