EARTHQUAKES · REEVES AREA · US2000AFKY
Magnitude 2.8 23 km NE of Balmorhea, Texas
Monday, September 4, 2017, 11:36:02 AM Central · 2017-09-04 16:36:02 UTC
A magnitude 2.8 earthquake 23 km NE of Balmorhea, Texas on September 4, 2017 at 11:36 AM Central, 5.0 km deep, in the Reeves County area.
It is one of 22 M2+ events located within 10 km of this spot, none in the thirty days before it; the largest nearby was M3.0.
12 active injection or disposal wells sit within 10 km, the nearest 2 km away and operated by Noble Energy Inc; together they hold 280,000 barrels a day of permitted capacity.
4 of the nearby wells report daily to TexNet; they injected 10,645 barrels a day in August 2026.
- M2.8
- ML, reviewed
- 5.0
- km deep · 16,405 ft
- 0
- M2+ within 10 km, prior 30 days
- 22
- M2+ within 10 km, all time
- 12
- active injection wells within 10 km
- 416
- permitted wells within 10 km
Location
- Epicenter
- 31.1188, -103.5486
- 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 |
|---|---|---|---|
| Nov 3, 2017, 7:02 AM | 2.2 | 5.2 km | 4.4 km |
| Jun 14, 2017, 10:54 PM | 2.6 | 5.5 km | 5.0 km |
| Nov 27, 2017, 1:48 AM | 2.6 | 2.5 km | 5.0 km |
| Apr 19, 2017, 7:18 AM | 3.0 | 6.6 km | 2.9 km |
| Mar 23, 2019, 9:04 AM | 2.6 | 8.2 km | 5.0 km |
| Mar 26, 2019, 12:44 AM | 2.5 | 7.4 km | 5.0 km |
| Sep 25, 2019, 2:34 PM | 2.9 | 7.8 km | 4.9 km |
| Apr 2, 2021, 7:22 AM | 2.2 | 8.9 km | 4.5 km |
| Aug 18, 2021, 1:04 PM | 2.1 | 8.2 km | 5.0 km |
| Nov 24, 2021, 11:39 PM | 2.2 | 8.5 km | 2.1 km |
| Aug 29, 2022, 5:51 AM | 2.0 | 9.1 km | 4.9 km |
| Jan 28, 2023, 6:54 AM | 2.2 | 8.1 km | 10.0 km |
Largest nearby on record: M3.0 on Apr 19, 2017.
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: 10.6K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Cwei-CHK 22-52-8 #3D | Noble Energy Inc | 000117640 | 2 km | 20,000 | 5,000–6,962 |
| Cwei-CHK 298-13 #3D | Noble Energy Inc | 000117639 | 2.6 km | 20,000 | 5,000–6,962 |
| Wolfbone #1SD | CR Field Services, LLC | 000101625 | 3.5 km | 25,000 | 5,000–7,000 |
| Rayburn SWD #1 | Waterbridge Texas Operating LLC | 000103825 | 4.5 km | 20,000 | 5,000–6,900 |
| East Pinta 35 #1D | Noble Energy Inc | 000114418 | 5 km | 25,000 | 5,200–6,500 |
| Sinclair Collier #1 | Waterbridge Texas Operating LLC | 000101047 | 6.3 km | 15,000 | 5,675–6,280 |
| Man O' War SWD #1 | Waterbridge Texas Operating LLC | 000114800 | 6.9 km | 30,000 | 5,050–6,400 |
| Sea Trek SWD #1 | Waterbridge Texas Operating LLC | 000112619 | 8.4 km | 30,000 | 4,800–7,700 |
| Williams Block 52 #1D | Noble Energy Inc | 000111011 | 8.8 km | 20,000 | 5,100–6,250 |
| Big Chief #172SW | Select Water Solutions, LLC | 000108519 | 9.3 km | 20,000 | 5,300–8,000 |
| Sea Bird SWD #1 | Waterbridge Texas Operating LLC | 000116145 | 9.8 km | 30,000 | 5,125–6,800 |
| Santa Maria 29 #1D | Noble Energy Inc | 000114749 | 9.9 km | 25,000 | 5,190–6,550 |
Disposal in Reeves County → · How disposal permits and volumes work →
About this data
Event us2000afky 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/us2000afky, documented in the API reference.