EARTHQUAKES · REEVES AREA · TX2021OXGN
Magnitude 3.1 20 km WSW of Coyanosa, Texas
Saturday, July 31, 2021, 5:55:21 PM Central · 2021-07-31 22:55:21 UTC
A magnitude 3.1 earthquake 20 km WSW of Coyanosa, Texas on July 31, 2021 at 5:55 PM Central, 3.8 km deep, in the Reeves County area.
It is one of 170 M2+ events TexNet has 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 1.1 km away and operated by VTX Engy Oper, LLC; together they hold 221,000 barrels a day of permitted capacity.
4 of the nearby wells report daily to TexNet; they injected 13,764 barrels a day in August 2026.
- M3.1
- ML, reviewed
- 3.8
- km deep · 12,526 ft
- 1
- M2+ within 10 km, prior 30 days
- 170
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 407
- permitted wells within 10 km
Location
- Epicenter
- 31.1486, -103.2524
- County area
- Reeves County
- On a map
- OpenStreetMap ↗
- Catalog
- TexNet earthquake catalog ↗
Around it in time and space
M2+ events within 10 km, nearest in time first.
| When | Mag | Distance | Depth |
|---|---|---|---|
| Aug 2, 2021, 1:07 AM | 2.2 | 0.7 km | 3.0 km |
| Aug 2, 2021, 1:10 PM | 2.3 | 0.3 km | 3.1 km |
| Aug 2, 2021, 1:10 PM | 3.1 | 1.5 km | 3.5 km |
| Jul 21, 2021, 5:16 PM | 2.1 | 9 km | 3.5 km |
| Jun 14, 2021, 11:31 AM | 2.1 | 5.9 km | 1.3 km |
| Jun 3, 2021, 4:14 AM | 3.0 | 4.9 km | 4.5 km |
| Oct 31, 2021, 1:03 PM | 2.0 | 4.5 km | 2.6 km |
| Apr 27, 2021, 9:17 PM | 2.3 | 5.1 km | 3.9 km |
| Apr 27, 2021, 8:50 PM | 2.9 | 5.7 km | 4.0 km |
| Nov 9, 2021, 3:38 AM | 2.5 | 3.8 km | 3.7 km |
| Nov 9, 2021, 7:36 AM | 2.5 | 2.9 km | 3.0 km |
| Nov 16, 2021, 7:50 AM | 2.0 | 4.4 km | 1.7 km |
Largest nearby on record: M3.6 on Nov 29, 2020.
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. 4 of these report daily to TexNet: 13.8K bbl/d in Aug 2026.
Disposal in Reeves County → · How disposal permits and volumes work →
About this data
TexNet catalog event tx2021oxgn, as published by the 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/tx2021oxgn, documented in the API reference.