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M1.6 earthquake 14 km E of Pearsall, Texas, United States

A magnitude 1.6 earthquake struck 14 km E of Pearsall, Texas, United States at 23:14 local time (04:14 UTC) on 30 Sept 2026, at a depth of 8 km, according to USGS.

Data: USGS · updated 2026-10-01 11:26 UTC · reviewed

Magnitude
1.6micro
local magnitude (Richter) (ml)
Depth
7.9 km
Status
Reviewed
Origin time
2026-10-01 04:14:44 UTC
Local: 30 Sept 2026, 23:14:44 (America/Chicago)
Epicentre
28.898° N, 98.956° W

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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
PearsallTexas, United States · pop. 9,98014 kmINot felt
PleasantonTexas, United States · pop. 9,82947 kmINot felt
San AntonioTexas, United States · pop. 1,526,65674 kmINot felt
ConverseTexas, United States · pop. 21,98793 kmINot felt
SchertzTexas, United States · pop. 43,09198 kmINot felt
CiboloTexas, United States · pop. 33,433102 kmINot felt
LaredoTexas, United States · pop. 256,153164 kmINot felt
Nuevo LaredoTamaulipas, Mexico · pop. 416,055167 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 · TX, which has been reviewed by an analyst.

AgencyMagnitudeDepthEpicentreTime offsetStatus
USGS · TXheadlineTexNet via U.S. Geological Survey1.6 ml7.9 km28.90° N, 98.96° 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 4 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.

M1.6 releases about 7.9× the energy of M1.0, and its waves are about 4× taller on a seismogram. Energy: 4 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

3 later earthquakes within 30 km; the largest was M2.0 19 h ago. 62 in the 7 days before. Aftershock rates usually fall off roughly in proportion to 1/time.

Aftershocks

Mainshock M1.6

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

Aftershocks
Time after mainshock (hours)MagnitudeDepth (km)
1.172.08
6.571.99
17.151.88
  1. 2.017 km ESE of Pearsall, Texas, United States10-01 05:25
  2. 1.915 km E of Pearsall, Texas, United States10-01 10:48
  3. 1.812 km ESE of Pearsall, Texas, United States10-01 21:23

Did you feel it?

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Reports on SeismoAtlas

No reports yet.

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Event id tx2026thlrvh. First recorded here 1 Oct 2026, 11:27:50 UTC. Solutions: USGS · TX (usgs:tx2026thlrvh). Cite as: SeismoAtlas, “M1.6 earthquake 14 km E of Pearsall, Texas, United States”, https://seismoatlas.com/earthquake/tx2026thlrvh-m1-6-earthquake-14-km-e-of-pearsall-texas-united-states, data from USGS.

JSON: /api/v1/events/tx2026thlrvh. SeismoAtlas is not an official warning service.