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M0.2 earthquake 29 km WSW of Oasis, California, United States

A magnitude 0.2 earthquake struck 29 km WSW of Oasis, California, United States at 04:43 local time (11:43 UTC) on 31 Oct 2026, at a depth of 9 km, according to USGS.

revised from M1.3

Data: USGS · updated 2026-10-31 23:33 UTC · reviewed

Magnitude
0.2micro
local magnitude (Richter) (ml)
revised from 1.3
Depth
9.2 km
Status
Reviewed
Origin time
2026-10-31 11:43:44 UTC
Local: 31 Oct 2026, 04:43:44 (America/Los Angeles)
Epicentre
33.343° N, 116.369° 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. 6,89029 kmINot felt
La QuintaCalifornia, United States · pop. 40,47636 kmINot felt
CoachellaCalifornia, United States · pop. 44,63542 kmINot felt
Palm DesertCalifornia, United States · pop. 51,86942 kmINot felt
IndioCalifornia, United States · pop. 87,53344 kmINot felt
San DiegoCalifornia, United States · pop. 1,404,452101 kmINot felt
Chula VistaCalifornia, United States · pop. 265,757102 kmINot felt
TijuanaBaja California, Mexico · pop. 1,922,523111 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 Survey0.2 mlwas 0.39.2 km33.34° N, 116.37° 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 27 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 9 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 18× the energy of M0.2, and its waves are about 6.8× taller on a seismogram. Energy: 477 g of TNT vs 27 g of TNT.

Each square is the energy of one M0.2. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

74 later earthquakes within 30 km; the largest was M2.6 6 days ago. 49 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M0.2

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
9.710.414
9.980.812
10.151.110
12.000.44
18.060.612
23.230.57
27.931.86
33.190.87
36.651.112
53.790.913
57.011.014
60.590.112
64.291.113
65.910.910
69.090.515
71.320.66
71.320.211
73.760.46
75.110.712
75.730.515
82.170.713
96.581.014
106.431.013
106.720.713
108.790.813
109.920.712
113.420.510
123.061.310
128.560.512
135.601.111
139.012.67
139.031.17
141.490.27
143.030.413
143.381.37
144.160.37
148.040.66
148.720.914
150.220.47
160.910.710
166.601.811
178.300.27
185.650.712
199.791.16
200.900.713
200.901.014
203.140.510
210.230.711
217.971.213
218.880.613
218.880.713
219.060.65
219.650.514
221.530.914
224.210.813
229.800.411
232.981.212
237.810.613
238.260.811
246.121.011
247.580.18
247.580.411
255.620.212
262.071.56
262.080.85
267.910.813
275.031.42
275.660.910
278.450.514
282.650.412
283.290.712
283.811.56
284.000.617
290.020.54
  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. 1.526 km S of Oasis, California, United States11-11 09:47
  5. 1.541 km ENE of Valley Center, California, United States11-12 07:32
  6. 1.439 km WSW of Oasis, California, United States11-11 22:45
  7. 1.318 km SW of Oasis, California, United States11-05 14:47
  8. 1.341 km ENE of Valley Center, California, United States11-06 11:06
  9. 1.225 km SW of La Quinta, California, United States11-09 13:41
  10. 1.229 km SW of Oasis, California, United States11-10 04:42
  11. 1.139 km ENE of San Diego Country Estates, California, United States10-31 21:52
  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 SSW of La Quinta, California, United States11-02 00:22
  16. 1.122 km SW of La Quinta, California, United States11-08 19:31
  17. 1.027 km SW of La Quinta, California, United States11-04 22:09
  18. 1.025 km SW of La Quinta, California, United States11-08 20:37
  19. 1.023 km SW of La Quinta, California, United States11-02 20:44
  20. 1.024 km SW of La Quinta, California, United States11-04 12:18
  21. 1.036 km ENE of San Diego Country Estates, California, United States11-10 17:50
  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. 0.938 km SSW of Oasis, California, United States11-03 05:38
  25. 0.940 km SW of Oasis, California, United States11-06 16:26

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Reports on SeismoAtlas

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Event id ci41570312. First recorded here 31 Oct 2026, 11:46:57 UTC. Solutions: USGS · CI (usgs:ci41570312). Cite as: SeismoAtlas, “M0.2 earthquake 29 km WSW of Oasis, California, United States”, https://seismoatlas.com/earthquake/ci41570312-m0-2-earthquake-29-km-wsw-of-oasis-california-united-states, data from USGS.

JSON: /api/v1/events/ci41570312. SeismoAtlas is not an official warning service.