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M0.5 earthquake 25 km SW of Rancho Mirage, California, United States

A magnitude 0.5 earthquake struck 25 km SW of Rancho Mirage, California, United States at 22:06 local time (05:06 UTC) on 25 Sept 2026, at a depth of 14 km, according to USGS.

Data: USGS · updated 2026-09-28 14:00 UTC · reviewed

Magnitude
0.5micro
local magnitude (Richter) (ml)
Depth
14.1 km
Status
Reviewed
Origin time
2026-09-26 05:06:55 UTC
Local: 25 Sept 2026, 22:06:55 (America/Los Angeles)
Epicentre
33.581° N, 116.608° 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
Rancho MirageCalifornia, United States · pop. 18,08325 kmINot felt
Cathedral CityCalifornia, United States · pop. 53,82625 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86926 kmINot felt
Palm SpringsCalifornia, United States · pop. 47,37128 kmINot felt
La QuintaCalifornia, United States · pop. 40,47629 kmINot felt
RiversideCalifornia, United States · pop. 317,26184 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,452109 kmINot felt
IrvineCalifornia, United States · pop. 256,927113 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 Survey0.5 ml14.1 km33.58° N, 116.61° W–Reviewed

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How big was it?

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

It released roughly the energy of 91 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 14 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 5.2× the energy of M0.5, and its waves are about 3× taller on a seismogram. Energy: 477 g of TNT vs 91 g of TNT.

Each square is the energy of one M0.5. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

45 later earthquakes within 30 km; the largest was M2.3 1 day ago. 60 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.5

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.840.95
2.410.315
2.721.112
3.820.315
3.830.015
3.830.615
3.870.414
4.630.37
5.030.412
5.170.06
5.680.212
8.23-0.06
12.680.210
13.750.46
17.840.612
22.381.614
22.381.620
22.382.314
22.391.213
23.880.412
23.960.512
26.10-0.06
26.930.718
28.060.814
30.580.26
31.650.93
32.110.910
33.510.513
34.151.413
37.601.513
42.090.56
42.760.86
45.601.712
45.640.913
46.291.114
47.300.213
50.060.62
55.930.411
57.321.117
59.611.213
59.990.611
60.000.313
60.130.716
61.760.710
61.770.411
  1. 2.326 km SW of La Quinta, California, United States09-27 03:29
  2. 1.723 km SSE of Valle Vista, California, United States09-28 02:42
  3. 1.626 km SW of La Quinta, California, United States09-27 03:29
  4. 1.623 km SSW of La Quinta, California, United States09-27 03:29
  5. 1.525 km SW of La Quinta, California, United States09-27 18:42
  6. 1.424 km E of Temecula, California, United States09-27 15:15
  7. 1.225 km SW of La Quinta, California, United States09-27 03:30
  8. 1.225 km SW of La Quinta, California, United States09-28 16:43
  9. 1.116 km SE of Valle Vista, California, United States09-28 03:24
  10. 1.120 km ESE of Valle Vista, California, United States09-28 14:25
  11. 1.122 km SSE of Valle Vista, California, United States09-26 07:50
  12. 0.941 km ENE of Valley Center, California, United States09-26 06:57
  13. 0.928 km SSE of Valle Vista, California, United States09-27 12:45
  14. 0.923 km SSE of Valle Vista, California, United States09-28 02:45
  15. 0.934 km ENE of Valley Center, California, United States09-27 13:13
  16. 0.820 km SE of Valle Vista, California, United States09-27 09:10
  17. 0.829 km SE of Valle Vista, California, United States09-27 23:52
  18. 0.713 km ESE of Valle Vista, California, United States09-28 17:14
  19. 0.718 km ESE of Valle Vista, California, United States09-27 08:02
  20. 0.730 km SW of La Quinta, California, United States09-28 18:52
  21. 0.617 km SW of La Quinta, California, United States09-28 07:10
  22. 0.622 km SSE of Valle Vista, California, United States09-26 22:57
  23. 0.618 km SW of La Quinta, California, United States09-28 17:06
  24. 0.619 km SE of Valle Vista, California, United States09-26 08:56
  25. 0.525 km SE of Valle Vista, California, United States09-27 05:04

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Event id ci41339287. First recorded here 28 Sept 2026, 17:32:09 UTC. Solutions: USGS · CI (usgs:ci41339287). Cite as: SeismoAtlas, “M0.5 earthquake 25 km SW of Rancho Mirage, California, United States”, https://seismoatlas.com/earthquake/ci41339287-m0-5-earthquake-25-km-sw-of-rancho-mirage-california-united-states, data from USGS.

JSON: /api/v1/events/ci41339287. SeismoAtlas is not an official warning service.