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M2.4 earthquake 86 km SSW of Carlsbad, New Mexico, United States

A magnitude 2.4 earthquake struck 86 km SSW of Carlsbad, New Mexico, United States at 15:54 local time (21:54 UTC) on 23 Sept 2026, at a depth of 7 km, according to USGS.

Data: USGS · updated 2026-09-24 15:23 UTC · reviewed

Magnitude
2.4micro
local magnitude (Richter) (ml)
Depth
7 km
Status
Reviewed
Origin time
2026-09-23 21:54:46 UTC
Local: 23 Sept 2026, 15:54:46 (America/Denver)
Epicentre
31.665° N, 104.417° 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
CarlsbadNew Mexico, United States · pop. 28,95786 kmINot felt
PecosTexas, United States · pop. 9,51792 kmINot felt
Ciudad JuárezChihuahua, Mexico · pop. 1,512,450193 kmINot felt
El PasoTexas, United States · pop. 678,815196 kmINot felt
ChihuahuaMexico · pop. 925,762373 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. Likely felt out to about 5 km.

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 · TX, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · TXheadlineTexNet via U.S. Geological Survey2.4 ml7 km31.66° N, 104.42° 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 60 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 7 km this was a shallow earthquake, which is felt more strongly at the surface than a deeper one of the same size.

M2.4 releases about 32× the energy of M1.4, and its waves are about 10× taller on a seismogram. Energy: 60 kg of TNT vs 2 kg of TNT.

Each square is the energy of one M1.4. Energy from log₁₀E = 1.5M + 4.8.

Aftershocks and nearby activity

31 later earthquakes within 30 km; the largest was M3.0 3 days ago. 17 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M2.4

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
4.371.76
4.721.57
14.161.77
14.841.67
15.871.66
17.282.06
18.071.58
18.122.26
28.513.05
29.711.86
31.281.75
33.881.76
35.952.17
49.431.67
54.842.07
58.802.48
59.592.06
61.562.46
63.481.89
74.061.87
84.051.97
89.962.35
97.852.58
99.352.56
102.891.86
108.871.710
112.972.46
117.091.86
117.132.17
117.291.77
117.521.76
  1. 3.085 km SSW of Carlsbad, New Mexico, United States09-25 02:25
  2. 2.581 km WNW of Pecos, Texas, United States09-27 23:45
  3. 2.582 km SSW of Carlsbad, New Mexico, United States09-28 01:15
  4. 2.475 km WNW of Pecos, Texas, United States09-26 08:43
  5. 2.486 km SSW of Carlsbad, New Mexico, United States09-26 11:28
  6. 2.490 km SSW of Carlsbad, New Mexico, United States09-28 14:52
  7. 2.386 km SSW of Carlsbad, New Mexico, United States09-27 15:52
  8. 2.265 km WNW of Pecos, Texas, United States09-24 16:02
  9. 2.187 km SSW of Carlsbad, New Mexico, United States09-25 09:51
  10. 2.188 km SSW of Carlsbad, New Mexico, United States09-28 19:02
  11. 2.066 km WNW of Pecos, Texas, United States09-24 15:11
  12. 2.071 km WNW of Pecos, Texas, United States09-26 04:45
  13. 2.063 km WNW of Pecos, Texas, United States09-26 09:30
  14. 1.972 km WNW of Pecos, Texas, United States09-27 09:57
  15. 1.886 km SSW of Carlsbad, New Mexico, United States09-25 03:37
  16. 1.884 km S of Carlsbad, New Mexico, United States09-26 13:23
  17. 1.874 km WNW of Pecos, Texas, United States09-26 23:58
  18. 1.888 km SSW of Carlsbad, New Mexico, United States09-28 04:48
  19. 1.888 km SSW of Carlsbad, New Mexico, United States09-28 18:59
  20. 1.787 km SSW of Carlsbad, New Mexico, United States09-24 02:16
  21. 1.789 km SSW of Carlsbad, New Mexico, United States09-24 12:04
  22. 1.783 km SSW of Carlsbad, New Mexico, United States09-25 05:11
  23. 1.787 km SSW of Carlsbad, New Mexico, United States09-25 07:47
  24. 1.786 km S of Carlsbad, New Mexico, United States09-28 10:46
  25. 1.763 km WNW of Pecos, Texas, United States09-28 19:12

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Reports on SeismoAtlas

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Event id tx2026sudaer. First recorded here 28 Sept 2026, 17:32:11 UTC. Solutions: USGS · TX (usgs:tx2026sudaer). Cite as: SeismoAtlas, “M2.4 earthquake 86 km SSW of Carlsbad, New Mexico, United States”, https://seismoatlas.com/earthquake/tx2026sudaer-m2-4-earthquake-86-km-ssw-of-carlsbad-new-mexico-united-states, data from USGS.

JSON: /api/v1/events/tx2026sudaer. SeismoAtlas is not an official warning service.