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M1.3 earthquake 36 km SSE of Oasis, California, United States

A magnitude 1.3 earthquake struck 36 km SSE of Oasis, California, United States at 06:58 local time (13:58 UTC) on 30 Oct 2026, at a depth of 8 km, according to USGS. The solution is preliminary and may be revised.

revised from M1.3

Data: USGS · updated 2026-10-30 14:02 UTC · automatic solution

Magnitude
1.3micro
local magnitude (Richter) (ml)
revised from 1.3
Depth
7.5 km
Status
Automatic
Origin time
2026-10-30 13:58:44 UTC
Local: 30 Oct 2026, 06:58:44 (America/Los Angeles)
Epicentre
33.153° N, 116.004° 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. 6,89036 kmINot felt
CalipatriaCalifornia, United States · pop. 7,42446 kmINot felt
BrawleyCalifornia, United States · pop. 25,89748 kmINot felt
El CentroCalifornia, United States · pop. 43,95658 kmINot felt
CoachellaCalifornia, United States · pop. 44,63561 kmINot felt
La QuintaCalifornia, United States · pop. 40,47663 kmINot felt
MexicaliBaja California, Mexico · pop. 1,032,68678 kmINot felt
Chula VistaCalifornia, United States · pop. 265,757116 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 Survey1.3 mlwas 1.37.5 km33.15° N, 116.00° 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 1 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 8 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.3 releases about 2.5× the energy of M1.0, and its waves are about 1.9× taller on a seismogram. Energy: 1 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

19 later earthquakes within 30 km; the largest was M1.9 6 days ago. 16 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.3

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
7.380.83
12.911.410
15.260.98
20.400.612
30.220.519
37.200.69
53.481.17
87.660.910
104.131.09
104.141.010
141.241.23
142.181.62
144.811.310
157.351.111
174.781.910
218.531.29
283.821.56
283.830.85
318.480.89
  1. 1.937 km W of Imperial, California, United States11-06 20:45
  2. 1.637 km WNW of Brawley, California, United States11-05 12:09
  3. 1.526 km S of Oasis, California, United States11-11 09:47
  4. 1.427 km S of Oasis, California, United States10-31 02:53
  5. 1.318 km SW of Oasis, California, United States11-05 14:47
  6. 1.237 km WNW of Brawley, California, United States11-05 11:13
  7. 1.223 km W of Brawley, California, United States11-08 16:30
  8. 1.130 km S of Oasis, California, United States11-01 19:27
  9. 1.128 km SSW of Oasis, California, United States11-06 03:19
  10. 1.028 km SSE of Oasis, California, United States11-03 22:06
  11. 1.027 km SSE of Oasis, California, United States11-03 22:07
  12. 0.944 km S of Oasis, California, United States10-31 05:14
  13. 0.938 km SSW of Oasis, California, United States11-03 05:38
  14. 0.825 km S of Oasis, California, United States11-11 09:48
  15. 0.819 km SSW of Oasis, California, United States10-30 21:21
  16. 0.844 km S of Oasis, California, United States11-12 20:27
  17. 0.643 km W of Imperial, California, United States10-31 10:22
  18. 0.632 km SSE of Oasis, California, United States11-01 03:10
  19. 0.545 km W of Brawley, California, United States10-31 20:11

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Reports on SeismoAtlas

No reports yet.

Event id ci41569744. First recorded here 30 Oct 2026, 14:01:03 UTC. Solutions: USGS · CI (usgs:ci41569744). Cite as: SeismoAtlas, “M1.3 earthquake 36 km SSE of Oasis, California, United States”, https://seismoatlas.com/earthquake/ci41569744-m1-3-earthquake-36-km-sse-of-oasis-california-united-states, data from USGS.

JSON: /api/v1/events/ci41569744. SeismoAtlas is not an official warning service.