EARTHQUAKES · MCMULLEN AREA · TX2021IBOU
Magnitude 2.1 22 km NE of Tilden, Texas
Sunday, April 25, 2021, 11:53:25 AM Central · 2021-04-25 16:53:25 UTC
A magnitude 2.1 earthquake 22 km NE of Tilden, Texas on April 25, 2021 at 11:53 AM Central, 6.2 km deep, in the McMullen County area.
It is one of 19 M2+ events located within 10 km of this spot, 1 of them in the thirty days before it; the largest nearby was M2.9.
5 active injection or disposal wells sit within 10 km, the nearest 5.4 km away and operated by Thalmann Oilfield; together they hold 9,900 barrels a day of permitted capacity.
- M2.1
- ML, reviewed
- 6.2
- km deep · 20,414 ft
- 1
- M2+ within 10 km, prior 30 days
- 19
- M2+ within 10 km, all time
- 5
- active injection wells within 10 km
- 364
- permitted wells within 10 km
Location
- Epicenter
- 28.5990, -98.3840
- County area
- McMullen 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 |
|---|---|---|---|
| Apr 25, 2021, 7:52 AM | 2.2 | 0.6 km | 7.1 km |
| Mar 24, 2023, 7:01 AM | 2.0 | 2.7 km | 7.3 km |
| Nov 4, 2023, 12:33 PM | 2.5 | 4.7 km | 6.5 km |
| Nov 13, 2023, 2:14 AM | 2.0 | 3.5 km | 5.4 km |
| Nov 13, 2023, 5:11 AM | 2.0 | 5.3 km | 4.0 km |
| May 25, 2024, 7:29 AM | 2.2 | 9 km | 8.2 km |
| Sep 3, 2024, 4:22 PM | 2.0 | 4.9 km | 6.3 km |
| Sep 6, 2024, 2:05 PM | 2.1 | 5.2 km | 6.7 km |
| Sep 7, 2024, 7:45 AM | 2.6 | 5 km | 6.4 km |
| Sep 13, 2024, 11:37 PM | 2.3 | 5.2 km | 4.1 km |
| Sep 14, 2024, 1:34 AM | 2.0 | 5.6 km | 6.7 km |
| Sep 21, 2024, 10:16 AM | 2.9 | 4.9 km | 6.5 km |
Largest nearby on record: M2.9 on Sep 21, 2024.
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 |
|---|---|---|---|---|---|
| Peeler, Graves #4 | Thalmann Oilfield | 000095555 | 5.4 km | 300 | 6,446–6,456 |
| Morrill #1R | Petrotx Operating, LLC | 000095974 | 7.3 km | 5,000 | 6,284–6,346 |
| Lark #23 | Texas Secondary Oil Corporation | 000105257 | 8.2 km | 500 | 820–1,114 |
| Peeler #D 1 | Hawthorn Energy Partners, LLC | 000096133 | 8.3 km | 500 | 5,376–5,548 |
| Hodde, A.W. #5 | Atlas Operating LLC | 000101433 | 9.2 km | 3,600 | 5,090–5,950 |
Disposal in McMullen County → · How disposal permits and volumes work →
About this data
Event tx2021ibou 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/tx2021ibou, documented in the API reference.