EARTHQUAKES · HOWARD AREA · TX2023ZARI
Magnitude 2.4 23 km NNW of Westbrook, Texas
Friday, December 22, 2023, 9:08:59 PM Central · 2023-12-23 03:08:59 UTC
A magnitude 2.4 earthquake 23 km NNW of Westbrook, Texas on December 22, 2023 at 9:08 PM Central, 9.2 km deep, in the Howard County area.
It is one of 16 M2+ events TexNet has located within 10 km of this spot, none in the thirty days before it; the largest nearby was M4.3.
15 active injection or disposal wells sit within 10 km, the nearest 3.3 km away and operated by Highpeak Engy Holdings, LLC; together they hold 102,200 barrels a day of permitted capacity.
6 of the nearby wells report daily to TexNet; they injected 54,612 barrels a day in August 2026.
- M2.4
- ML, reviewed
- 9.2
- km deep · 30,249 ft
- 0
- M2+ within 10 km, prior 30 days
- 16
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 164
- permitted wells within 10 km
Location
- Epicenter
- 32.5440, -101.1350
- County area
- Howard 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 |
|---|---|---|---|
| Oct 30, 2023, 7:31 AM | 2.1 | 7.9 km | 7.1 km |
| May 29, 2024, 12:52 AM | 2.1 | 0.8 km | 8.4 km |
| Feb 7, 2023, 7:28 PM | 2.0 | 5 km | 6.8 km |
| May 7, 2025, 7:45 AM | 2.3 | 1.6 km | 5.5 km |
| May 17, 2025, 4:48 AM | 2.3 | 1.6 km | 2.9 km |
| May 24, 2022, 1:13 AM | 2.6 | 7.9 km | 7.8 km |
| May 10, 2022, 2:30 PM | 2.6 | 8.8 km | 0.7 km |
| Dec 21, 2025, 2:54 AM | 2.3 | 8.3 km | 5.7 km |
| Jan 26, 2026, 4:22 AM | 4.3 | 4.3 km | 6.5 km |
| Feb 8, 2026, 3:31 AM | 2.3 | 2.7 km | 7.2 km |
| Feb 13, 2026, 6:51 PM | 2.6 | 5.1 km | 6.8 km |
| Apr 22, 2026, 2:35 PM | 2.1 | 8.6 km | 8.1 km |
Largest nearby on record: M4.3 on Jan 26, 2026.
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. 6 of these report daily to TexNet: 54.6K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Lottie SWD #1 | Highpeak Engy Holdings, LLC | 000126721 | 3.3 km | 15,000 | 7,360–7,700 |
| Broken Dam #62S | Bayswater Oper Co LLC | 000126826 | 4.5 km | 25,000 | 2,035–3,450 |
| County Line #1 | TX WT, LLC | 000101648 | 6 km | 20,000 | 2,328–4,508 |
| Sharon Ridge Canyon Unit #5707W | OXY USA WTP LP | 000072586 | 6.6 km | 6,500 | 6,540–7,000 |
| Sharon Ridge Canyon Unit #5706 | OXY USA WTP LP | 000072582 | 6.9 km | 6,500 | 6,532–7,000 |
| Sterling "4" #1D | GNG Operating LLC | 000102021 | 7.2 km | 5,000 | 2,335–8,169 |
| Coleman, L.M. #6 | RHB Expl & Prod,llc | 000090259 | 7.3 km | 300 | 2,572–2,790 |
| Louis "A" #D 1R | P.o.&g. Oper, LLC | 000067829 | 7.5 km | 4,000 | 2,362–3,800 |
| Sharon Ridge Canyon Unit #5503W | OXY USA WTP LP | 000023130 | 7.6 km | 6,500 | 6,692–7,350 |
| Thompson #1 | Unitex Oil & Gas, L.L.C | 000053490 | 7.7 km | 400 | 2,169–2,460 |
| Thompson #5 | Unitex Oil & Gas, L.L.C | 000053491 | 7.7 km | — | 2,105 |
| Sterling, T. J. #3W | Rigged UP, LLC | 000102100 | 7.7 km | 1,000 | 3,169–3,260 |
| Conrad "C" #5D | P.o.&g. Oper, LLC | 000028210 | 7.7 km | 5,500 | 2,445–4,110 |
| Sharon Ridge Canyon Unit #5415 | OXY USA WTP LP | 000058018 | 7.7 km | — | 6,662 |
| Sharon Ridge Canyon Unit #5601W | OXY USA WTP LP | 000072580 | 7.7 km | 6,500 | 6,554–7,000 |
Disposal in Howard County → · How disposal permits and volumes work →
About this data
TexNet catalog event tx2023zari, 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/tx2023zari, documented in the API reference.