EARTHQUAKES · REEVES AREA · US1000AYF4

Magnitude 2.6 18 km WSW of Coyanosa, Texas

Sunday, October 29, 2017, 9:23:44 PM Central · 2017-10-30 02:23:44 UTC

A magnitude 2.6 earthquake 18 km WSW of Coyanosa, Texas on October 29, 2017 at 9:23 PM Central, 2.2 km deep, in the Reeves County area.

It is one of 157 M2+ events located within 10 km of this spot, 2 of them in the thirty days before it; the largest nearby was M3.6.

15 active injection or disposal wells sit within 10 km, the nearest 1.1 km away and operated by Blue Arrow Operating, LLC; together they hold 223,000 barrels a day of permitted capacity.

3 of the nearby wells report daily to TexNet; they injected 4,597 barrels a day in August 2026.

M2.6
MB_LG, reviewed
2.2
km deep · 7,251 ft
2
M2+ within 10 km, prior 30 days
157
M2+ within 10 km, all time
15
active injection wells within 10 km
467
permitted wells within 10 km

Location

Epicenter
31.1543, -103.2331
County area
Reeves County
On a map
Google Maps ↗
Catalog
USGS event page ↗

Around it in time and space

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

WhenMagDistanceDepth
Oct 24, 2017, 6:54 PM2.68.9 km5.0 km
Oct 21, 2017, 4:50 PM3.16.2 km1.2 km
Nov 10, 2017, 8:44 AM3.07.1 km1.1 km
Sep 27, 2017, 5:57 AM2.64.8 km5.0 km
Sep 27, 2017, 4:16 AM2.83.5 km5.0 km
Sep 27, 2017, 4:15 AM3.03.7 km5.0 km
Sep 26, 2017, 11:09 PM2.84.7 km5.0 km
Sep 14, 2017, 3:11 PM3.26.1 km5.0 km
Dec 15, 2017, 3:53 AM3.34.9 km5.0 km
Dec 18, 2017, 10:59 PM2.50.7 km5.0 km
Sep 3, 2017, 1:27 AM3.13.6 km5.0 km
Sep 3, 2017, 1:24 AM2.79.2 km5.0 km

Largest nearby on record: M3.6 on Oct 7, 2026.

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. 3 of these report daily to TexNet: 4.6K bbl/d in Aug 2026.

WellOperatorUIC no.DistancePermitted, bbl/dInjection zone, ft
Chaparral "B" #1Blue Arrow Operating, LLC0000646081.1 km5005,221–5,241
WBR 18 #1SWVTX Energy Operating, LLC0001136363 km20,0005,500–7,500
Salty Brigham 10 #1SWRattler Midstream Operating LLC0001109843.3 km20,0006,050–7,800
Red Horse "29" #1WShenandoah Petroleum Corporation0000983283.4 km1,5005,250–5,392
Lucas 23 #1SWWaterbridge Texas Operating LLC0001127445.6 km12,0006,020–6,405
Hippo 22 #1SWVTX Energy Operating, LLC0001050125.6 km20,0005,850–6,500
Lucas 23 #2SWWaterbridge Texas Operating LLC0001127455.8 km12,0005,250–6,900
Lindsay #1DRattler Midstream Operating LLC0001188806.3 km10,0006,000–8,100
Hawg SWD #1Waterbridge Texas Operating LLC0001059296.3 km20,0005,200–8,000
El Kabong Unit 48-18-7 #1DXTO Energy Inc.0001179796.5 km20,0005,700–7,738
Old Courtney Ranch Co SWD #1Rattler Midstream Operating LLC0001180226.7 km20,0005,930–7,950
WBR 47 #1SWVTX Energy Operating, LLC0001138696.9 km20,0005,500–7,500
Warthog 19 #1SWVTX Energy Operating, LLC0001092277.2 km12,0005,700–7,500
Zauk 39 #1SWRattler Midstream Operating LLC0001122787.8 km20,0005,350–8,000
Puff Adder 16 #1SWVTX Energy Operating, LLC0001160057.9 km15,0005,500–7,500

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

About this data

Event us1000ayf4 from the USGS earthquake catalog, located by the network its id names 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/us1000ayf4, documented in the API reference.