EARTHQUAKES · FRIO AREA · TX2021XWHH
Magnitude 2.1 22 km NE of Big Wells, Texas
Monday, December 6, 2021, 6:00:12 AM Central · 2021-12-06 12:00:12 UTC
A magnitude 2.1 earthquake 22 km NE of Big Wells, Texas on December 6, 2021 at 6:00 AM Central, 6.0 km deep, in the Frio County area.
It is one of 7 M2+ events TexNet has located within 10 km of this spot, none in the thirty days before it; the largest nearby was M2.2.
3 active injection or disposal wells sit within 10 km, the nearest 5.4 km away and operated by Trinity Oper (Usg), LLC; together they hold 62,200 barrels a day of permitted capacity.
- M2.1
- ML, reviewed
- 6.0
- km deep · 19,531 ft
- 0
- M2+ within 10 km, prior 30 days
- 7
- M2+ within 10 km, all time
- 3
- active injection wells within 10 km
- 184
- permitted wells within 10 km
Location
- Epicenter
- 28.7290, -99.4200
- 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 |
|---|---|---|---|
| Mar 25, 2022, 6:07 PM | 2.2 | 8.8 km | 7.2 km |
| Apr 17, 2022, 1:32 PM | 2.2 | 3.3 km | 5.5 km |
| Apr 17, 2022, 5:34 PM | 2.0 | 4.3 km | 8.8 km |
| Apr 28, 2022, 1:46 AM | 2.1 | 8.7 km | 6.9 km |
| Sep 17, 2022, 3:51 PM | 2.1 | 7.7 km | 5.9 km |
| Apr 14, 2023, 7:46 PM | 2.1 | 9.1 km | 4.2 km |
Largest nearby on record: M2.2 on Apr 17, 2022.
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 |
|---|---|---|---|---|---|
| Glasscock, Leta #1D | Trinity Oper (Usg), LLC | 000075985 | 5.4 km | 2,200 | 4,432–4,667 |
| Wilmeth SWD #1 | Pilot Water Solutions SWD LLC | 000124530 | 9.7 km | 40,000 | 7,860–8,450 |
| Hausser #1SW | Formentera Operations LLC | 000112842 | 9.9 km | 20,000 | 6,410–9,800 |
Disposal in Frio County → · How disposal permits and volumes work →
About this data
TexNet catalog event tx2021xwhh, 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/tx2021xwhh, documented in the API reference.