EARTHQUAKES · ECTOR AREA · TX2021WWEF
Magnitude 2.4 7 km ESE of Gardendale, Texas
Sunday, November 21, 2021, 10:54:40 PM Central · 2021-11-22 04:54:40 UTC
A magnitude 2.4 earthquake 7 km ESE of Gardendale, Texas on November 21, 2021 at 10:54 PM Central, 8.4 km deep, in the Ector County area.
It is one of 111 M2+ events located within 10 km of this spot, 6 of them in the thirty days before it; the largest nearby was M3.6.
15 active injection or disposal wells sit within 10 km, the nearest 2.2 km away and operated by Permian Resources Operating, LLC; together they hold 262,000 barrels a day of permitted capacity.
16 of the nearby wells report daily to TexNet; they injected 33,007 barrels a day in August 2026.
- M2.4
- ML, reviewed
- 8.4
- km deep · 27,521 ft
- 6
- M2+ within 10 km, prior 30 days
- 111
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 506
- permitted wells within 10 km
Location
- Epicenter
- 31.9839, -102.3079
- County area
- Ector 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 |
|---|---|---|---|
| Nov 22, 2021, 1:29 AM | 2.0 | 2.9 km | 8.5 km |
| Nov 26, 2021, 11:23 AM | 2.2 | 6 km | 6.6 km |
| Dec 2, 2021, 3:51 AM | 2.3 | 5.4 km | 7.3 km |
| Oct 30, 2021, 11:00 AM | 2.6 | 6.6 km | 7.7 km |
| Oct 28, 2021, 6:27 AM | 2.1 | 4.6 km | 7.2 km |
| Oct 27, 2021, 4:04 PM | 3.2 | 5 km | 7.8 km |
| Oct 26, 2021, 5:03 PM | 3.6 | 6.4 km | 8.4 km |
| Oct 26, 2021, 4:54 PM | 3.4 | 6.5 km | 8.4 km |
| Oct 25, 2021, 8:39 PM | 2.1 | 0.9 km | 7.7 km |
| Dec 23, 2021, 7:02 AM | 2.1 | 2.4 km | 8.4 km |
| Dec 27, 2021, 1:29 AM | 2.4 | 2.7 km | 8.6 km |
| Jan 8, 2022, 3:53 AM | 2.3 | 2.3 km | 8.0 km |
Largest nearby on record: M3.6 on Oct 26, 2021.
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. 16 of these report daily to TexNet: 33K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Whittenburg #2200SW | Permian Resources Operating, LLC | 000101188 | 2.2 km | 10,000 | 5,150–5,550 |
| Parks Bell SWD #4101 | Owl SWD Operating, LLC | 000106396 | 3.5 km | 20,000 | 4,900–5,600 |
| Ratliff A #3201 | COG Operating LLC | 000101348 | 4.1 km | 15,000 | 5,000–5,600 |
| Ratliff A #1903 | COG Operating LLC | 000104207 | 4.4 km | 15,000 | 4,900–5,600 |
| Gardendale 8 SWD #1 | Diamondback E&P LLC | 000103282 | 4.6 km | 20,000 | 4,900–5,400 |
| Ratliff A #3004SW | COG Operating LLC | 000111129 | 4.8 km | 24,000 | 5,129–6,091 |
| Holifield #1 | Direct Midstream LLC | 000102300 | 5.3 km | 15,000 | 4,000–6,000 |
| Ratliff Ranch 'A' #5A | Slant Operating, LLC | 000116242 | 5.8 km | 10,000 | 6,250–7,000 |
| Ratliff 'F' #1 | Slant Operating, LLC | 000113121 | 5.9 km | 10,000 | 5,290–7,190 |
| Ratliff, S. W., -A- #13 J | Slant Operating, LLC | 000102703 | 6.1 km | 3,000 | 4,849–5,060 |
| DJK 48 SWD #1 | Deep Blue Operating I LLC | 000114255 | 6.9 km | 24,000 | 4,600–7,100 |
| Pintail West 30 #1D | Pioneer Natural Res. USA, Inc. | 000126553 | 7.4 km | 30,000 | 4,035–6,490 |
| Fee "BL" SWD #1 | Fasken Oil and Ranch, Ltd. | 000104206 | 7.7 km | 30,000 | 4,800–15,000 |
| Barrow Wiw #2 | Formentera Operations LLC | 000015177 | 7.8 km | 6,000 | 5,200–5,530 |
| CASSELMAN8 #1D | Apache Corporation | 000112402 | 8.3 km | 30,000 | 12,480–14,500 |
Disposal in Ector County → · How disposal permits and volumes work →
About this data
Event tx2021wwef 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/tx2021wwef, documented in the API reference.