EARTHQUAKES · FRIO AREA · TX2019CNQO
Magnitude 2.3 9 km E of Dilley, Texas
Tuesday, February 5, 2019, 4:12:28 PM Central · 2019-02-05 22:12:28 UTC
A magnitude 2.3 earthquake 9 km E of Dilley, Texas on February 5, 2019 at 4:12 PM Central, 2.4 km deep, in the Frio County area.
It is one of 22 M2+ events TexNet has located within 10 km of this spot, none in the thirty days before it; the largest nearby was M3.6.
6 active injection or disposal wells sit within 10 km, the nearest 6.4 km away and operated by Trinity Oper (Usg), LLC; together they hold 45,000 barrels a day of permitted capacity.
- M2.3
- ML, reviewed
- 2.4
- km deep · 7,983 ft
- 0
- M2+ within 10 km, prior 30 days
- 22
- M2+ within 10 km, all time
- 6
- active injection wells within 10 km
- 163
- permitted wells within 10 km
Location
- Epicenter
- 28.6510, -99.0710
- County area
- Frio 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 |
|---|---|---|---|
| Feb 15, 2019, 9:47 PM | 2.1 | 4.7 km | 8.0 km |
| Mar 13, 2019, 1:56 PM | 2.0 | 2.2 km | 2.0 km |
| Mar 19, 2019, 5:31 PM | 2.1 | 6.6 km | 1.2 km |
| Apr 11, 2019, 6:58 PM | 2.1 | 7.7 km | 7.2 km |
| Apr 12, 2019, 7:24 AM | 2.0 | 4 km | 8.3 km |
| Dec 30, 2023, 10:32 PM | 2.0 | 7.7 km | 1.2 km |
| Oct 31, 2024, 6:07 PM | 2.5 | 4.5 km | 6.0 km |
| Nov 9, 2024, 1:10 AM | 2.7 | 3.9 km | 6.9 km |
| Nov 21, 2024, 9:38 AM | 2.9 | 3.7 km | 4.8 km |
| Dec 13, 2024, 11:45 PM | 2.6 | 8.8 km | 3.2 km |
| Feb 8, 2025, 11:59 PM | 2.2 | 6.1 km | 8.0 km |
| Jun 9, 2025, 9:58 AM | 2.0 | 4.6 km | 3.5 km |
Largest nearby on record: M3.6 on Jul 12, 2026.
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.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Shiner Ranch #7 | Trinity Oper (Usg), LLC | 000078949 | 6.4 km | 3,000 | 5,530–5,800 |
| Lonestar Operating SWD #1 | FW Eagle Ford I, LLC | 000114616 | 6.9 km | 4,000 | 8,341–8,949 |
| Wilson Ranch #11 | Sydri Oper, LLC | 000108792 | 7.9 km | 25,000 | 8,218–8,294 |
| Frio SWD #1 | Eagle Ford Water and Disposl LLC | 000105304 | 8.1 km | 7,500 | 5,100–5,400 |
| Lancaster Agi #1 | Targa Southtex Mdstrm Utility LP | 000104303 | 8.6 km | 3,500 | 8,400–9,850 |
| Morales, Fred #3 | Blackbrush O & G, LLC | 000086630 | 9 km | 2,000 | 5,350–5,551 |
Disposal in Frio County → · How disposal permits and volumes work →
About this data
TexNet catalog event tx2019cnqo, 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/tx2019cnqo, documented in the API reference.