EARTHQUAKES · REEVES AREA · US2000C4SJ
Magnitude 3.3 23 km WSW of Coyanosa, Texas
Friday, December 15, 2017, 3:53:41 AM Central · 2017-12-15 09:53:41 UTC
A magnitude 3.3 earthquake 23 km WSW of Coyanosa, Texas on December 15, 2017 at 3:53 AM Central, 5.0 km deep, in the Reeves County area.
It is one of 192 M2+ events located within 10 km of this spot, none 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 Waterbridge Texas Operating LLC; together they hold 221,000 barrels a day of permitted capacity.
5 of the nearby wells report daily to TexNet; they injected 29,132 barrels a day in August 2026.
- M3.3
- ML, reviewed
- 5.0
- km deep · 16,405 ft
- 0
- M2+ within 10 km, prior 30 days
- 192
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 369
- permitted wells within 10 km
Location
- Epicenter
- 31.1384, -103.2814
- 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 |
|---|---|---|---|
| Dec 18, 2017, 10:59 PM | 2.5 | 4.3 km | 5.0 km |
| Dec 27, 2017, 5:50 PM | 2.7 | 6.9 km | 5.0 km |
| Nov 10, 2017, 8:44 AM | 3.0 | 3.8 km | 1.1 km |
| Jan 23, 2018, 4:42 AM | 2.2 | 7.5 km | 6.6 km |
| Oct 29, 2017, 9:23 PM | 2.6 | 4.9 km | 2.2 km |
| Oct 24, 2017, 6:54 PM | 2.6 | 7.1 km | 5.0 km |
| Oct 21, 2017, 9:53 PM | 3.3 | 6.8 km | 5.0 km |
| Oct 21, 2017, 8:57 PM | 2.7 | 7.9 km | 5.0 km |
| Oct 21, 2017, 4:50 PM | 3.1 | 1.9 km | 1.2 km |
| Feb 11, 2018, 3:39 PM | 3.0 | 4 km | 5.0 km |
| Sep 27, 2017, 5:57 AM | 2.6 | 3.5 km | 5.0 km |
| Sep 27, 2017, 4:16 AM | 2.8 | 8 km | 5.0 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. 5 of these report daily to TexNet: 29.1K bbl/d in Aug 2026.
Disposal in Reeves County → · How disposal permits and volumes work →
About this data
Event us2000c4sj 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/us2000c4sj, documented in the API reference.