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M1.6 earthquake 26 km SW of Oasis, California, United States

A magnitude 1.6 earthquake struck 26 km SW of Oasis, California, United States at 00:42 local time (07:42 UTC) on 24 Sept 2026, at a depth of 11 km, according to USGS.

Data: USGS · updated 2026-09-24 16:19 UTC · reviewed

Magnitude
1.6micro
local magnitude (Richter) (ml)
Depth
10.7 km
Status
Reviewed
Origin time
2026-09-24 07:42:11 UTC
Local: 24 Sept 2026, 00:42:11 (America/Los Angeles)
Epicentre
33.298° N, 116.293° 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
OasisCalifornia, United States · pop. 6,89026 kmINot felt
MeccaCalifornia, United States · pop. 8,57736 kmINot felt
La QuintaCalifornia, United States · pop. 40,47640 kmINot felt
CoachellaCalifornia, United States · pop. 44,63544 kmINot felt
IndioCalifornia, United States · pop. 87,53347 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86948 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,452103 kmINot felt
Chula VistaCalifornia, United States · pop. 265,757104 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 Survey1.6 ml10.7 km33.30° N, 116.29° 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 4 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 11 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.6 releases about 7.9× the energy of M1.0, and its waves are about 4× taller on a seismogram. Energy: 4 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

26 later earthquakes within 30 km; the largest was M2.3 1 day ago. 23 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.040.79
0.080.69
0.162.010
7.450.96
10.710.79
11.250.67
18.080.811
41.720.411
43.310.78
45.760.66
54.110.67
67.791.614
67.791.620
67.792.314
67.811.213
81.130.611
83.011.513
91.671.211
99.960.66
100.380.710
105.021.213
105.410.611
105.410.313
106.210.811
107.180.710
107.180.411
  1. 2.326 km SW of La Quinta, California, United States09-27 03:29
  2. 2.026 km SW of Oasis, California, United States09-24 07:51
  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. 1.225 km SW of La Quinta, California, United States09-27 03:30
  7. 1.225 km WSW of Oasis, California, United States09-28 03:22
  8. 1.225 km SW of La Quinta, California, United States09-28 16:43
  9. 0.925 km SW of La Quinta, California, United States09-24 15:09
  10. 0.826 km SW of Oasis, California, United States09-28 17:54
  11. 0.826 km WSW of Oasis, California, United States09-25 01:46
  12. 0.726 km SW of Oasis, California, United States09-24 07:44
  13. 0.730 km WSW of Oasis, California, United States09-24 18:24
  14. 0.730 km WSW of Oasis, California, United States09-28 12:04
  15. 0.745 km E of San Diego Country Estates, California, United States09-26 03:01
  16. 0.730 km SW of La Quinta, California, United States09-28 18:52
  17. 0.646 km E of San Diego Country Estates, California, United States09-26 13:48
  18. 0.618 km SW of La Quinta, California, United States09-28 17:06
  19. 0.638 km ENE of San Diego Country Estates, California, United States09-27 16:50
  20. 0.625 km SW of Oasis, California, United States09-24 07:47
  21. 0.629 km ENE of San Diego Country Estates, California, United States09-24 18:57
  22. 0.626 km NE of San Diego Country Estates, California, United States09-26 05:28
  23. 0.629 km ENE of San Diego Country Estates, California, United States09-28 11:39
  24. 0.429 km WSW of Oasis, California, United States09-26 01:25
  25. 0.430 km SW of La Quinta, California, United States09-28 18:53

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Reports on SeismoAtlas

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Event id ci41338311. First recorded here 28 Sept 2026, 17:32:10 UTC. Solutions: USGS · CI (usgs:ci41338311). Cite as: SeismoAtlas, “M1.6 earthquake 26 km SW of Oasis, California, United States”, https://seismoatlas.com/earthquake/ci41338311-m1-6-earthquake-26-km-sw-of-oasis-california-united-states, data from USGS.

JSON: /api/v1/events/ci41338311. SeismoAtlas is not an official warning service.