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M1.9 earthquake 9 km NNE of Delta, Baja California, Mexico

A magnitude 1.9 earthquake struck 9 km NNE of Delta, Baja California, Mexico at 11:01 local time (19:01 UTC) on 2 Nov 2026, at a depth of 20 km, according to USGS.

revised from M2.0

Data: USGS · updated 2026-11-02 21:48 UTC · reviewed

Magnitude
1.9micro
local magnitude (Richter) (ml)
revised from 2.0
Depth
19.6 km
Status
Reviewed
Origin time
2026-11-02 19:01:42 UTC
Local: 2 Nov 2026, 11:01:42 (America/Tijuana)
Epicentre
32.420° N, 115.148° 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
DeltaBaja California, Mexico · pop. 5,1809 kmINot felt
Ciudad Guadalupe VictoriaBaja California, Mexico · pop. 17,11915 kmINot felt
San LuisArizona, United States · pop. 31,52035 kmINot felt
San Luis Río ColoradoSonora, Mexico · pop. 176,68536 kmINot felt
MexicaliBaja California, Mexico · pop. 1,032,68637 kmINot felt
CalexicoCalifornia, United States · pop. 40,05344 kmINot felt
EnsenadaBaja California, Mexico · pop. 443,807150 kmINot felt
TijuanaBaja California, Mexico · pop. 1,922,523174 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 Survey1.9 mlwas 1.919.6 km32.42° N, 115.15° 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 10 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 20 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M1.9 releases about 21× the energy of M1.0, and its waves are about 7.6× taller on a seismogram. Energy: 10 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

32 later earthquakes within 30 km; the largest was M4.9 9 days ago. 7 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.9

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
0.072.315
2.441.617
6.522.819
7.061.816
7.851.715
8.023.110
8.023.320
9.321.415
9.331.716
10.651.814
13.111.712
16.111.612
23.263.516
23.434.916
23.682.216
23.682.212
23.761.813
24.273.016
24.331.919
24.562.116
24.572.515
24.791.315
24.802.012
25.252.214
25.272.012
26.832.115
27.552.120
29.821.611
31.171.813
75.642.311
210.361.820
210.952.019
  1. 4.99 km NNE of Delta, Baja California, Mexico11-03 18:27
  2. 3.59 km NNE of Delta, Baja California, Mexico11-03 18:17
  3. 3.37 km NNE of Delta, Baja California, Mexico11-03 03:02
  4. 3.111 km NNE of Delta, Baja California, Mexico11-03 03:02
  5. 3.08 km NNE of Delta, Baja California, Mexico11-03 19:18
  6. 2.88 km NNE of Delta, Baja California, Mexico11-03 01:33
  7. 2.58 km NNE of Delta, Baja California, Mexico11-03 19:35
  8. 2.311 km W of Doctor Alberto Oviedo Mota, Baja California, Mexico11-05 22:39
  9. 2.39 km NNE of Delta, Baja California, Mexico11-02 19:05
  10. 2.29 km NNE of Delta, Baja California, Mexico11-03 18:42
  11. 2.28 km NE of Delta, Baja California, Mexico11-03 18:42
  12. 2.210 km NNE of Delta, Baja California, Mexico11-03 20:16
  13. 2.110 km NNE of Delta, Baja California, Mexico11-03 22:34
  14. 2.17 km NNE of Delta, Baja California, Mexico11-03 19:35
  15. 2.17 km N of Delta, Baja California, Mexico11-03 21:51
  16. 2.011 km E of Puebla, Baja California, Mexico11-11 13:58
  17. 2.09 km NNE of Delta, Baja California, Mexico11-03 19:49
  18. 2.010 km NNE of Delta, Baja California, Mexico11-03 20:17
  19. 1.910 km NNE of Delta, Baja California, Mexico11-03 19:21
  20. 1.89 km NE of Delta, Baja California, Mexico11-03 18:47
  21. 1.89 km NNE of Delta, Baja California, Mexico11-03 02:05
  22. 1.811 km E of Puebla, Baja California, Mexico11-11 13:23
  23. 1.811 km NNE of Delta, Baja California, Mexico11-04 02:12
  24. 1.810 km NNE of Delta, Baja California, Mexico11-03 05:40
  25. 1.710 km NNE of Delta, Baja California, Mexico11-03 02:52

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Reports on SeismoAtlas

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Event id ci41571528. First recorded here 2 Nov 2026, 19:04:21 UTC. Solutions: USGS · CI (usgs:ci41571528). Cite as: SeismoAtlas, “M1.9 earthquake 9 km NNE of Delta, Baja California, Mexico”, https://seismoatlas.com/earthquake/ci41571528-m1-9-earthquake-9-km-nne-of-delta-baja-california-mexico, data from USGS.

JSON: /api/v1/events/ci41571528. SeismoAtlas is not an official warning service.