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EARTHQUAKES · HOWARD AREA · TX2023OTTX

Magnitude 2.3 18 km SSE of Ackerly, Texas

Saturday, July 29, 2023, 8:08:08 PM Central · 2023-07-30 01:08:08 UTC

A magnitude 2.3 earthquake 18 km SSE of Ackerly, Texas on July 29, 2023 at 8:08 PM Central, 7.1 km deep, in the Howard County area.

It is one of 80 M2+ events located within 10 km of this spot, 1 of them in the thirty days before it; the largest nearby was M3.9.

15 active injection or disposal wells sit within 10 km, the nearest 1.5 km away and operated by Deep Blue Operating I LLC; together they hold 478,380 barrels a day of permitted capacity.

45 of the nearby wells report daily to TexNet; they injected 260,447 barrels a day in August 2026.

M2.3
ML, reviewed
7.1
km deep · 23,349 ft
1
M2+ within 10 km, prior 30 days
80
M2+ within 10 km, all time
15
active injection wells within 10 km
1,696
permitted wells within 10 km

Location

Epicenter
32.3703, -101.6519
County area
Howard 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
Jul 29, 2023, 6:16 PM3.30.8 km8.7 km
Jul 31, 2023, 4:25 AM3.51.1 km5.8 km
Nov 2, 2023, 2:39 PM3.37 km4.5 km
Nov 2, 2023, 2:45 PM2.47.5 km4.0 km
Dec 20, 2023, 8:19 AM3.52.3 km6.3 km
Dec 20, 2023, 8:30 AM2.52.8 km6.3 km
Dec 25, 2023, 5:31 AM2.08.2 km6.5 km
Jan 6, 2024, 11:19 PM2.53.6 km5.3 km
Jan 7, 2024, 12:49 AM3.13.4 km5.7 km
Jan 7, 2024, 6:26 PM2.13.1 km4.6 km
Feb 7, 2023, 7:01 AM2.03.7 km8.8 km
Feb 3, 2023, 1:15 PM2.13.5 km6.7 km

Largest nearby on record: M3.9 on Jun 6, 2022.

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. 45 of these report daily to TexNet: 260K bbl/d in Aug 2026.

WellOperatorUIC no.DistancePermitted, bbl/dInjection zone, ft
Cottonmouth #1DDeep Blue Operating I LLC0001220841.5 km38,88010,440–11,955
Nichols 17 #1Deep Blue Operating I LLC0001100312.3 km15,0003,300–6,620
DB Hughes #1DDeep Blue Operating I LLC0001179362.8 km30,00010,500–11,900
Diamondback-County Line SWD #1Deep Blue Operating I LLC0001155083.1 km30,0003,200–4,300
Hughes SWD #1Pilot Water Solutions Permianllc0001094733.4 km35,0003,200–4,800
West Knott SWD #1Deep Blue Operating I LLC0001053753.4 km20,0003,340–4,800
Free Burger #2DOxyrock Operating, LLC0001173523.5 km25,00010,500–13,000
Andre the Giant SWD #1Birch Operations, Inc.0001177003.6 km80,00010,500–11,500
Fire Barrel #1DOxyrock Operating, LLC0001254534.1 km10,0003,150–4,175
TCM #2DNew Height Energy, LLC0001013914.5 km20,0003,300–5,000
Knott #1Junction Resources OP, LLC0001050435.1 km20,0003,000–4,475
Hulkster SWD #1Birch Operations, Inc.0001175685.2 km60,00010,871–11,380
Knott SWD #1DKL Water Gathering Permian, LLC0001080176.1 km20,0003,700–6,000
Delphin SWD #1SM Energy Company0001162746.2 km50,00010,361–11,477
Hughes 44 SWD #1Deep Blue Operating I LLC0001239246.2 km24,50010,500–12,000

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

About this data

Event tx2023ottx 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/tx2023ottx, documented in the API reference.