EARTHQUAKES · STERLING AREA · TX2026ADJXEF

Magnitude 2.3 23 km S of Westbrook, Texas

Friday, January 2, 2026, 2:11:51 PM Central · 2026-01-02 20:11:51 UTC

A magnitude 2.3 earthquake 23 km S of Westbrook, Texas on January 2, 2026 at 2:11 PM Central, 5.0 km deep, in the Sterling County area.

It is one of 154 M2+ events located within 10 km of this spot, 11 of them in the thirty days before it; the largest nearby was M3.4.

4 active injection or disposal wells sit within 10 km, the nearest 2.6 km away and operated by Reservoir Fluid Solutions LLC; together they hold 41,600 barrels a day of permitted capacity.

1 of the nearby wells report daily to TexNet; they injected 138 barrels a day in August 2026.

M2.3
ML, reviewed
5.0
km deep · 16,421 ft
11
M2+ within 10 km, prior 30 days
154
M2+ within 10 km, all time
4
active injection wells within 10 km
54
permitted wells within 10 km

Location

Epicenter
32.1450, -101.0540
County area
Sterling County
On a map
Google Maps ↗
Catalog
USGS event page ↗ · TexNet catalog ↗

Around it in time and space

M2+ events within 10 km, nearest in time first.

WhenMagDistanceDepth
Jan 2, 2026, 2:18 PM2.01.1 km8.9 km
Jan 2, 2026, 1:10 PM2.00.4 km9.0 km
Jan 2, 2026, 1:08 PM3.00.4 km6.1 km
Jan 2, 2026, 1:08 PM2.90.6 km7.5 km
Jan 6, 2026, 3:49 AM2.10.6 km5.4 km
Jan 8, 2026, 10:51 PM2.11.1 km6.3 km
Jan 9, 2026, 3:49 PM2.12.7 km7.2 km
Dec 25, 2025, 3:52 AM2.21.8 km6.9 km
Dec 22, 2025, 8:08 AM2.11.9 km8.6 km
Dec 22, 2025, 4:08 AM2.62.6 km8.9 km
Dec 22, 2025, 2:45 AM3.41.4 km8.6 km
Dec 22, 2025, 2:07 AM2.01.8 km8.7 km

Largest nearby on record: M3.4 on Dec 22, 2025.

Injection wells within 10 km

RRC UIC MASTER · ACTIVE PERMITS

Proximity is not attribution. The wells are listed because the question is always asked; whether any of them is connected to this event is for the RRC's seismic response review, not this page. 1 of these report daily to TexNet: 138 bbl/d in Aug 2026.

WellOperatorUIC no.DistancePermitted, bbl/dInjection zone, ft
Hughes SWD #1Reservoir Fluid Solutions LLC0001068202.6 km20,0002,750–4,300
Port O'Connor '34' #1Saguaro Petroleum, LLC0001271162.9 km8007,925–7,980
Port Lavaca '39-34' #13WSaguaro Petroleum, LLC0001271984.4 km8007,800–8,100
Spade Ranch #271Crownquest Operating, LLC0001176815.2 km20,0007,767–8,560

Disposal in Sterling County → · How disposal permits and volumes work →

About this data

Event tx2026adjxef from the USGS earthquake catalog, located by TexNet (UT Bureau of Economic Geology) and refreshed daily. Nearby wells from the RRC UIC well master and permit coordinates; daily volumes from the TexNet injection reporting tool.

Developers: this page as JSON is GET /v1/data/earthquakes/tx/events/tx2026adjxef, documented in the API reference.