EARTHQUAKES · WILSON AREA · TX2018HTKS
Magnitude 2.5 9 km S of Stockdale, Texas
Saturday, April 21, 2018, 12:44:16 AM Central · 2018-04-21 05:44:16 UTC
A magnitude 2.5 earthquake 9 km S of Stockdale, Texas on April 21, 2018 at 12:44 AM Central, 6.3 km deep, in the Wilson County area.
It is one of 8 M2+ events located within 10 km of this spot, none in the thirty days before it; the largest nearby was M3.0.
3 active injection or disposal wells sit within 10 km, the nearest 8.6 km away and operated by 2 D Oil & Gas LLC; together they hold 30,500 barrels a day of permitted capacity.
1 of the nearby wells report daily to TexNet; they injected 23,984 barrels a day in August 2026.
- M2.5
- ML, reviewed
- 6.3
- km deep · 20,563 ft
- 0
- M2+ within 10 km, prior 30 days
- 8
- M2+ within 10 km, all time
- 3
- active injection wells within 10 km
- 74
- permitted wells within 10 km
Location
- Epicenter
- 29.1540, -97.9650
- County area
- Wilson 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.
| When | Mag | Distance | Depth |
|---|---|---|---|
| Jun 13, 2018, 10:18 AM | 2.5 | 9 km | 2.8 km |
| Jun 13, 2018, 11:02 AM | 2.1 | 8.3 km | 1.8 km |
| Feb 18, 2018, 6:39 PM | 2.5 | 6.9 km | 7.1 km |
| Jun 30, 2018, 9:45 PM | 2.3 | 4.6 km | 6.8 km |
| Jan 10, 2018, 3:11 AM | 2.1 | 4.8 km | 3.8 km |
| May 10, 2019, 11:49 AM | 3.0 | 7.2 km | 5.0 km |
| Oct 19, 2024, 9:11 AM | 2.5 | 10 km | 7.7 km |
Largest nearby on record: M3.0 on May 10, 2019.
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. 1 of these report daily to TexNet: 24K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Skloss, Emil -SWD- #1 | 2 D Oil & Gas LLC | 000046064 | 8.6 km | 4,000 | 4,868–4,988 |
| Cherry, Peter #2 | Rafter L Resources, LLC | 000085989 | 9 km | 1,500 | 2,806–2,816 |
| Brooks #1 | Evx Operating LLC | 000113472 | 9.5 km | 25,000 | 8,200–9,100 |
Disposal in Wilson County → · How disposal permits and volumes work →
About this data
Event tx2018htks 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/tx2018htks, documented in the API reference.