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EARTHQUAKES · REEVES AREA · TX2021IFYK

Magnitude 2.3 17 km SW of Coyanosa, Texas

Tuesday, April 27, 2021, 9:17:57 PM Central · 2021-04-28 02:17:57 UTC

A magnitude 2.3 earthquake 17 km SW of Coyanosa, Texas on April 27, 2021 at 9:17 PM Central, 3.9 km deep, in the Reeves County area.

It is one of 147 M2+ events located within 10 km of this spot, 1 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 3.2 km away and operated by Rattler Midstream Operating LLC; together they hold 288,000 barrels a day of permitted capacity.

M2.3
ML, reviewed
3.9
km deep · 12,695 ft
1
M2+ within 10 km, prior 30 days
147
M2+ within 10 km, all time
15
active injection wells within 10 km
456
permitted wells within 10 km

Location

Epicenter
31.1415, -103.1995
County area
Reeves 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
Apr 27, 2021, 8:50 PM2.90.6 km4.0 km
May 5, 2021, 10:40 AM2.46 km2.4 km
Jun 3, 2021, 4:14 AM3.07.1 km4.5 km
Jun 14, 2021, 11:31 AM2.17.7 km1.3 km
Jan 29, 2021, 1:15 AM2.58.4 km2.6 km
Jul 31, 2021, 5:55 PM3.15.1 km3.8 km
Aug 2, 2021, 1:07 AM2.25.7 km3.0 km
Aug 2, 2021, 1:10 PM2.35.4 km3.1 km
Aug 2, 2021, 1:10 PM3.14.1 km3.5 km
Jan 15, 2021, 5:19 PM2.58.9 km5.0 km
Dec 17, 2020, 4:23 AM3.36.2 km5.0 km
Nov 29, 2020, 4:44 AM2.54.6 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.

WellOperatorUIC no.DistancePermitted, bbl/dInjection zone, ft
Old Courtney Ranch Co SWD #1Rattler Midstream Operating LLC0001180223.2 km20,0005,930–7,950
Salty Brigham 10 #1SWRattler Midstream Operating LLC0001109843.3 km20,0006,050–7,800
El Kabong Unit 48-18-7 #1DXTO Energy Inc.0001179793.6 km20,0005,700–7,738
Chaparral "B" #1Blue Arrow Operating, LLC0000646084.6 km5005,221–5,241
Red Horse "29" #1WShenandoah Petroleum Corporation0000983284.9 km1,5005,250–5,392
El Kabong Unit 48-17-8 #1DXTO Energy Inc.0001179845 km30,0005,310–6,436
Hawg SWD #1Waterbridge Texas Operating LLC0001059295.5 km20,0005,200–8,000
El Kabong 48-29 #1DXTO Energy Inc.0001179825.8 km30,0005,700–7,250
Zauk 39 #1SWRattler Midstream Operating LLC0001122786 km20,0005,350–8,000
WBR 18 #1SWVTX Energy Operating, LLC0001136366 km20,0005,500–7,500
El Kabong Unit 48-17-8 #2DXTO Energy Inc.0001179806.3 km30,0005,700–7,250
Weatherby SWD #1Rattler Midstream Operating LLC0001173406.5 km30,0006,000–7,900
Mandujano Bros SWD #1Rattler Midstream Operating LLC0001166036.8 km24,0006,000–7,900
Lindsay #1DRattler Midstream Operating LLC0001188807.1 km10,0006,000–8,100
Warthog 19 #1SWVTX Energy Operating, LLC0001092277.1 km12,0005,700–7,500

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

About this data

Event tx2021ifyk 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/tx2021ifyk, documented in the API reference.