EARTHQUAKES · ECTOR AREA · TX2023OFUE
Magnitude 3.5 10 km SSE of Gardendale, Texas
Saturday, July 22, 2023, 4:24:21 AM Central · 2023-07-22 09:24:21 UTC
A magnitude 3.5 earthquake 10 km SSE of Gardendale, Texas on July 22, 2023 at 4:24 AM Central, 7.8 km deep, in the Ector County area.
It is one of 108 M2+ events located within 10 km of this spot, 1 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 2.6 km away and operated by COG Operating LLC; together they hold 93,350 barrels a day of permitted capacity.
17 of the nearby wells report daily to TexNet; they injected 32,824 barrels a day in August 2026.
- M3.5
- ML, reviewed
- 7.8
- km deep · 25,595 ft
- 1
- M2+ within 10 km, prior 30 days
- 108
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 327
- permitted wells within 10 km
Location
- Epicenter
- 31.9345, -102.3465
- 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 |
|---|---|---|---|
| Jul 22, 2023, 4:25 AM | 2.3 | 1.1 km | 7.0 km |
| Jul 22, 2023, 5:21 AM | 2.4 | 1.6 km | 5.0 km |
| Jul 21, 2023, 4:29 PM | 2.6 | 5 km | 7.9 km |
| Aug 5, 2023, 2:53 AM | 2.2 | 0.8 km | 8.9 km |
| Jun 20, 2023, 11:31 PM | 2.2 | 1.5 km | 6.9 km |
| May 21, 2023, 2:51 PM | 2.0 | 4.9 km | 7.7 km |
| May 20, 2023, 2:24 PM | 2.3 | 5 km | 7.8 km |
| May 20, 2023, 11:56 AM | 2.0 | 5.3 km | 7.9 km |
| Nov 23, 2023, 5:54 PM | 2.2 | 6 km | 6.7 km |
| Mar 17, 2023, 9:39 PM | 2.2 | 4.8 km | 8.0 km |
| Nov 23, 2022, 7:04 PM | 2.3 | 5 km | 8.7 km |
| Nov 23, 2022, 7:04 PM | 2.5 | 3.4 km | 9.7 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. 17 of these report daily to TexNet: 32.8K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Ratliff A #3201 | COG Operating LLC | 000101348 | 2.6 km | 15,000 | 5,000–5,600 |
| Parks Bell SWD #4101 | Owl SWD Operating, LLC | 000106396 | 3.3 km | 20,000 | 4,900–5,600 |
| Ratliff Ranch 'A' #5A | Slant Operating, LLC | 000116242 | 3.8 km | 10,000 | 6,250–7,000 |
| Ratliff 'F' #1 | Slant Operating, LLC | 000113121 | 4.1 km | 10,000 | 5,290–7,190 |
| Headlee Devonian Unit #63 | Chevron U. S. A. Inc. | 000039662 | 4.3 km | 5,000 | 5,032–5,376 |
| Ratliff A #3004SW | COG Operating LLC | 000111129 | 4.7 km | 24,000 | 5,129–6,091 |
| Ratliff, S. W., -A- #13 J | Slant Operating, LLC | 000102703 | 5 km | 3,000 | 4,849–5,060 |
| Gist Unit #62W | Aghorn Operating, Inc. | 000013064 | 5.9 km | 750 | 4,150–4,350 |
| Gist, Etal #9W | Aghorn Operating, Inc. | 000077909 | 5.9 km | 2,000 | 4,354–4,507 |
| Gist Unit #12W | Aghorn Operating, Inc. | 000013051 | 5.9 km | 1,200 | 4,139–4,385 |
| Gist -C- #515W | Aghorn Operating, Inc. | 000046183 | 6 km | 1,000 | 4,456–4,570 |
| Gist Unit #125W | Aghorn Operating, Inc. | 000057528 | 6 km | — | 4,150 |
| Gist Unit #96W | Aghorn Operating, Inc. | 000057529 | 6 km | — | 4,150 |
| Gist Unit #148W | Aghorn Operating, Inc. | 000057531 | 6.1 km | 800 | 4,150–4,499 |
| Gist -C- #511W | Aghorn Operating, Inc. | 000043176 | 6.1 km | 600 | 4,240–4,516 |
Disposal in Ector County → · How disposal permits and volumes work →
About this data
Event tx2023ofue 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/tx2023ofue, documented in the API reference.