EARTHQUAKES · STERLING AREA · TX2025OXBIGD
Magnitude 2.5 24 km E of Forsan, Texas
Wednesday, July 30, 2025, 3:31:45 PM Central · 2025-07-30 20:31:45 UTC
A magnitude 2.5 earthquake 24 km E of Forsan, Texas on July 30, 2025 at 3:31 PM Central, 6.1 km deep, in the Sterling County area.
It is one of 148 M2+ events located within 10 km of this spot, 1 of them in the thirty days before it; the largest nearby was M3.4.
15 active injection or disposal wells sit within 10 km, the nearest 4.6 km away and operated by Saguaro Petroleum, LLC; together they hold 47,350 barrels a day of permitted capacity.
1 of the nearby wells report daily to TexNet; they injected 138 barrels a day in August 2026.
- M2.5
- ML, reviewed
- 6.1
- km deep · 20,106 ft
- 1
- M2+ within 10 km, prior 30 days
- 148
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 37
- permitted wells within 10 km
Location
- Epicenter
- 32.1250, -101.1050
- County area
- Sterling 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 30, 2025, 2:34 PM | 2.2 | 1 km | 7.9 km |
| Jul 30, 2025, 5:40 PM | 2.5 | 2.4 km | 8.4 km |
| Aug 4, 2025, 10:50 PM | 2.0 | 5.8 km | 8.7 km |
| Aug 5, 2025, 8:48 AM | 2.8 | 5.9 km | 5.9 km |
| Aug 26, 2025, 1:41 AM | 2.0 | 3.2 km | 8.0 km |
| Aug 27, 2025, 5:39 PM | 2.0 | 5.2 km | 7.4 km |
| Aug 30, 2025, 10:17 PM | 2.2 | 5.5 km | 7.8 km |
| Sep 5, 2025, 11:16 PM | 3.4 | 5 km | 7.6 km |
| Jun 22, 2025, 11:04 PM | 2.0 | 4.8 km | 6.8 km |
| Sep 9, 2025, 9:53 AM | 2.1 | 3.1 km | 6.6 km |
| Jun 9, 2025, 4:12 AM | 2.2 | 4 km | 6.3 km |
| Jun 9, 2025, 3:48 AM | 2.2 | 4.2 km | 4.5 km |
Largest nearby on record: M3.4 on Dec 22, 2025.
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: 138 bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Port Lavaca '39-34' #13W | Saguaro Petroleum, LLC | 000127198 | 4.6 km | 800 | 7,800–8,100 |
| Port O'Connor '34' #1 | Saguaro Petroleum, LLC | 000127116 | 4.8 km | 800 | 7,925–7,980 |
| Rackley, C. B. #803W | Skeeter Oil L.L.C. | 000100010 | 6.1 km | 250 | 1,245–1,285 |
| Rackley, C. B. #802 | Skeeter Oil L.L.C. | 000100009 | 6.2 km | 250 | 1,245–1,285 |
| Niemeyer #603 | Gallo Petroleum, LLC | 000084239 | 6.2 km | 700 | 1,156–1,168 |
| Hughes SWD #1 | Reservoir Fluid Solutions LLC | 000106820 | 7.4 km | 20,000 | 2,750–4,300 |
| Nellie Sellers #2 | Ampak Oil Company | 000117716 | 8.6 km | 2,000 | 3,700–4,600 |
| Hyman, Sarah #9 | Sterling Oil and Gas LLC | 000086556 | 8.9 km | 300 | 1,250–1,320 |
| Hyman, Sarah -C- #11 | Sterling Oil and Gas LLC | 000086547 | 9.4 km | 300 | 1,250–1,320 |
| Bowen, Anna #2W | Sterling Oil and Gas LLC | 000079367 | 9.5 km | 250 | 1,289–1,307 |
| Bowen, Anna #15 | Sterling Oil and Gas LLC | 000086550 | 9.7 km | 300 | 1,250–1,320 |
| Douthit -a- Unit #6 | Wash, Robert C. Inc. | 000070171 | 9.8 km | 100 | 1,250–1,303 |
| Hyman, Sarah -C- #9 | Sterling Oil and Gas LLC | 000086546 | 9.8 km | 300 | 1,250–1,320 |
| Chalk, Mary, -BE- #4 D | R2Q Operating LLC | 000059231 | 9.8 km | 1,000 | 1,405–1,408 |
| Spade Ranch #271 | Crownquest Operating, LLC | 000117681 | 9.8 km | 20,000 | 7,767–8,560 |
Disposal in Sterling County → · How disposal permits and volumes work →
About this data
Event tx2025oxbigd 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/tx2025oxbigd, documented in the API reference.