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M1.3 earthquake 4 km SSW of Brawley, California, United States

A magnitude 1.3 earthquake struck 4 km SSW of Brawley, California, United States at 07:17 local time (15:17 UTC) on 2 Nov 2026, at a depth of 8 km, according to USGS.

revised from M1.5

Data: USGS · updated 2026-11-04 23:48 UTC · reviewed

Magnitude
1.3micro
local magnitude (Richter) (ml)
revised from 1.5
Depth
7.9 km
Status
Reviewed
Origin time
2026-11-02 15:17:13 UTC
Local: 2 Nov 2026, 07:17:13 (America/Los Angeles)
Epicentre
32.949° N, 115.547° 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
BrawleyCalifornia, United States · pop. 25,8974 kmINot felt
ImperialCalifornia, United States · pop. 17,09511 kmINot felt
El CentroCalifornia, United States · pop. 43,95618 kmINot felt
CalexicoCalifornia, United States · pop. 40,05330 kmINot felt
Santa IsabelBaja California, Mexico · pop. 29,31136 kmINot felt
MexicaliBaja California, Mexico · pop. 1,032,68637 kmINot felt
TijuanaBaja California, Mexico · pop. 1,922,523145 kmINot felt
Chula VistaCalifornia, United States · pop. 265,757147 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 Survey1.3 mlwas 1.47.9 km32.95° N, 115.55° 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 2 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 3.2× the energy of M1.0, and its waves are about 2.2× taller on a seismogram. Energy: 2 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

25 later earthquakes within 30 km; the largest was M2.2 10 days ago. 33 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.3

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.001.210
0.022.211
0.101.414
0.101.910
0.292.112
0.831.310
1.411.711
1.551.39
1.881.35
1.902.212
3.041.710
3.041.79
3.981.712
9.171.414
9.521.57
13.080.84
14.061.18
111.771.33
111.971.14
118.741.48
145.221.29
170.291.33
200.090.58
244.381.511
245.691.411
  1. 2.26 km S of Brawley, California, United States11-02 17:10
  2. 2.23 km SSW of Brawley, California, United States11-02 15:18
  3. 2.14 km SSW of Brawley, California, United States11-02 15:34
  4. 1.94 km SSW of Brawley, California, United States11-02 15:23
  5. 1.73 km SSW of Brawley, California, United States11-02 19:15
  6. 1.75 km SSW of Brawley, California, United States11-02 16:41
  7. 1.74 km SSW of Brawley, California, United States11-02 18:19
  8. 1.74 km SSW of Brawley, California, United States11-02 18:19
  9. 1.58 km SSW of Holtville, California, United States11-12 19:39
  10. 1.54 km SSW of Brawley, California, United States11-03 00:48
  11. 1.44 km SSW of Brawley, California, United States11-03 00:27
  12. 1.410 km SW of Calipatria, California, United States11-12 20:58
  13. 1.44 km SSW of Brawley, California, United States11-07 14:01
  14. 1.47 km SSE of Brawley, California, United States11-02 15:23
  15. 1.34 km S of Brawley, California, United States11-02 16:07
  16. 1.36 km S of Brawley, California, United States11-02 16:50
  17. 1.314 km WNW of Calipatria, California, United States11-09 17:34
  18. 1.312 km WNW of Calipatria, California, United States11-07 07:03
  19. 1.35 km SW of Brawley, California, United States11-02 17:09
  20. 1.24 km SSW of Brawley, California, United States11-02 15:17
  21. 1.223 km W of Brawley, California, United States11-08 16:30
  22. 1.14 km SSW of Brawley, California, United States11-03 05:20
  23. 1.112 km WNW of Calipatria, California, United States11-07 07:15
  24. 0.8Near Brawley, California, United States11-03 04:21
  25. 0.522 km WNW of Imperial, California, United States11-10 23:22

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Reports on SeismoAtlas

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Event id ci41571360. First recorded here 2 Nov 2026, 15:20:11 UTC. Solutions: USGS · CI (usgs:ci41571360). Cite as: SeismoAtlas, “M1.3 earthquake 4 km SSW of Brawley, California, United States”, https://seismoatlas.com/earthquake/ci41571360-m1-3-earthquake-4-km-ssw-of-brawley-california-united-states, data from USGS.

JSON: /api/v1/events/ci41571360. SeismoAtlas is not an official warning service.