EARTHQUAKES · REEVES AREA · US2000AA4G
Magnitude 2.8 22 km SW of Coyanosa, Texas
Monday, August 21, 2017, 4:44:02 AM Central · 2017-08-21 09:44:02 UTC
A magnitude 2.8 earthquake 22 km SW of Coyanosa, Texas on August 21, 2017 at 4:44 AM Central, 4.1 km deep, in the Reeves County area.
It is one of 184 M2+ events located within 10 km of this spot, 4 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 0.8 km away and operated by Shenandoah Petroleum Corporation; together they hold 211,000 barrels a day of permitted capacity.
2 of the nearby wells report daily to TexNet; they injected 9,167 barrels a day in August 2026.
- M2.8
- MB_LG, reviewed
- 4.1
- km deep · 13,485 ft
- 4
- M2+ within 10 km, prior 30 days
- 184
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 342
- permitted wells within 10 km
Location
- Epicenter
- 31.1248, -103.2556
- 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.
| When | Mag | Distance | Depth |
|---|---|---|---|
| Aug 20, 2017, 3:54 PM | 2.8 | 3.3 km | 5.0 km |
| Aug 20, 2017, 3:48 PM | 2.8 | 1.4 km | 5.0 km |
| Aug 17, 2017, 3:42 PM | 2.7 | 4.3 km | 5.0 km |
| Sep 3, 2017, 1:24 AM | 2.7 | 6.4 km | 5.0 km |
| Sep 3, 2017, 1:27 AM | 3.1 | 5.4 km | 5.0 km |
| Aug 4, 2017, 12:05 PM | 2.8 | 4.3 km | 2.8 km |
| Sep 14, 2017, 3:11 PM | 3.2 | 6.1 km | 5.0 km |
| Sep 26, 2017, 11:09 PM | 2.8 | 5.1 km | 5.0 km |
| Sep 27, 2017, 4:15 AM | 3.0 | 3 km | 5.0 km |
| Sep 27, 2017, 4:16 AM | 2.8 | 7.4 km | 5.0 km |
| Sep 27, 2017, 5:57 AM | 2.6 | 5.5 km | 5.0 km |
| Oct 21, 2017, 4:50 PM | 3.1 | 4.8 km | 1.2 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. 2 of these report daily to TexNet: 9.17K bbl/d in Aug 2026.
Disposal in Reeves County → · How disposal permits and volumes work →
About this data
Event us2000aa4g 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/us2000aa4g, documented in the API reference.