EARTHQUAKES · WILSON AREA · TX2021ACSU
Magnitude 2.1 14 km SW of Falls City, Texas
Saturday, January 2, 2021, 5:45:27 AM Central · 2021-01-02 11:45:27 UTC
A magnitude 2.1 earthquake 14 km SW of Falls City, Texas on January 2, 2021 at 5:45 AM Central, 6.9 km deep, in the Wilson County area.
It is one of 127 M2+ events located within 10 km of this spot, 3 of them in the thirty days before it; the largest nearby was M3.7.
10 active injection or disposal wells sit within 10 km, the nearest 4.6 km away and operated by Goodnight Midstream Permian, LLC; together they hold 158,000 barrels a day of permitted capacity.
1 of the nearby wells report daily to TexNet; they injected 829 barrels a day in August 2026.
- M2.1
- ML, reviewed
- 6.9
- km deep · 22,568 ft
- 3
- M2+ within 10 km, prior 30 days
- 127
- M2+ within 10 km, all time
- 10
- active injection wells within 10 km
- 517
- permitted wells within 10 km
Location
- Epicenter
- 28.8810, -98.1060
- 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 |
|---|---|---|---|
| Jan 1, 2021, 6:21 AM | 2.7 | 0.6 km | 7.1 km |
| Jan 1, 2021, 2:57 AM | 2.1 | 0.7 km | 8.2 km |
| Jan 3, 2021, 11:34 AM | 3.1 | 0.6 km | 6.5 km |
| Dec 31, 2020, 12:36 PM | 2.1 | 1.1 km | 7.9 km |
| Apr 3, 2021, 2:00 PM | 2.1 | 1.4 km | 6.8 km |
| Sep 10, 2020, 7:36 AM | 2.2 | 7.3 km | 7.6 km |
| Sep 10, 2020, 2:52 AM | 2.2 | 6 km | 6.7 km |
| Sep 5, 2020, 9:21 AM | 2.0 | 5.6 km | 5.8 km |
| Sep 5, 2020, 3:48 AM | 2.8 | 4.9 km | 5.0 km |
| Sep 4, 2020, 9:50 PM | 2.6 | 4.1 km | 5.0 km |
| Sep 4, 2020, 8:48 PM | 2.6 | 8.7 km | 5.0 km |
| Sep 3, 2020, 6:31 PM | 2.0 | 5.7 km | 7.6 km |
Largest nearby on record: M3.7 on Oct 20, 2023.
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: 829 bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Burris SWD #1 | Goodnight Midstream Permian, LLC | 000105599 | 4.6 km | 30,000 | 5,800–6,800 |
| YO Ranch SWD #1 | Evx Operating LLC | 000108295 | 7.4 km | 25,000 | 10,000–11,000 |
| Hysaw-Hobson #3A | Jaybird Operating, LLC | 000077612 | 7.9 km | 3,000 | 4,007–4,009 |
| Richter,h. E. #2 | J & D Logistics Inc | 000081322 | 8.1 km | 25,000 | 6,304–6,560 |
| Gerold SWD #1 | Pilot Water Solutions SWD LLC | 000107012 | 8.8 km | 25,000 | 5,650–6,650 |
| Maurer, Boone #2 | Rio-Tex, Inc. | 000092627 | 8.9 km | 5,000 | 4,281–5,006 |
| Holiday #1W | RBR Operating, Inc. | 000099902 | 9.1 km | — | 2,720–2,810 |
| Nor-Tex SWD #1 | Crosstex Environmental STX, LLC | 000104952 | 9.6 km | 25,000 | 6,200–7,500 |
| Atascosa SWD #2 | Milestone Enviro Services, LLC | 000114007 | 9.8 km | 10,000 | 5,850–6,800 |
| Atascosa SWD #3 | Milestone Enviro Services, LLC | 000124516 | 10 km | 10,000 | 5,850–6,800 |
Disposal in Wilson County → · How disposal permits and volumes work →
About this data
Event tx2021acsu 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/tx2021acsu, documented in the API reference.