EARTHQUAKES · GLASSCOCK AREA · TX2025GEDC
Magnitude 2.3 9 km SSW of Big Spring, Texas
Saturday, March 29, 2025, 10:17:01 AM Central · 2025-03-29 15:17:01 UTC
A magnitude 2.3 earthquake 9 km SSW of Big Spring, Texas on March 29, 2025 at 10:17 AM Central, 6.6 km deep, in the Glasscock County area.
It is one of 32 M2+ events located within 10 km of this spot, none in the thirty days before it; the largest nearby was M2.7.
15 active injection or disposal wells sit within 10 km, the nearest 1.2 km away and operated by OXY USA Inc.; together they hold 72,620 barrels a day of permitted capacity.
12 of the nearby wells report daily to TexNet; they injected 36,168 barrels a day in August 2026.
- M2.3
- ML, reviewed
- 6.6
- km deep · 21,548 ft
- 0
- M2+ within 10 km, prior 30 days
- 32
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 313
- permitted wells within 10 km
Location
- Epicenter
- 32.1650, -101.5020
- County area
- Glasscock 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 6, 2025, 6:47 PM | 2.6 | 7.9 km | 8.9 km |
| May 13, 2025, 1:32 PM | 2.1 | 6.6 km | 6.3 km |
| Jan 13, 2025, 9:21 PM | 2.2 | 7.9 km | 8.1 km |
| Jan 3, 2025, 12:35 AM | 2.7 | 8 km | 9.0 km |
| Dec 31, 2024, 2:37 AM | 2.0 | 7.8 km | 9.0 km |
| Aug 1, 2025, 4:31 PM | 2.2 | 7 km | 8.0 km |
| Aug 1, 2025, 5:50 PM | 2.4 | 7 km | 8.8 km |
| Sep 6, 2024, 8:46 PM | 2.0 | 4.4 km | 9.3 km |
| Nov 15, 2025, 12:59 AM | 2.3 | 7 km | 8.8 km |
| Nov 21, 2025, 3:24 AM | 2.5 | 9.6 km | 6.6 km |
| Nov 21, 2025, 11:43 AM | 2.3 | 9.7 km | 6.7 km |
| Dec 5, 2025, 2:37 PM | 2.2 | 7.5 km | 8.8 km |
Largest nearby on record: M2.7 on Jan 3, 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. 12 of these report daily to TexNet: 36.2K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Patterson #2713 | OXY USA Inc. | 000112469 | 1.2 km | 10,000 | 3,200–4,100 |
| Olufsen #3 | Johnson Operating Company, LLC. | 000048535 | 1.6 km | — | 3,072–3,142 |
| Connally #2841 | OXY USA Inc. | 000115242 | 2.4 km | 10,000 | 3,450–4,650 |
| Barnett P-S #8 | Johnson Operating Company, LLC. | 000040595 | 2.5 km | 120 | 3,077–3,111 |
| Tubb SWD #1D | Civitas Permian Operating, LLC | 000116421 | 3.4 km | 10,000 | 2,998–3,786 |
| Horace Tubb SWD #1 | Founders SWD, LLC | 000105117 | 3.5 km | 20,000 | 3,000–5,000 |
| West Moore Unit #89WI | Johnson Operating Company, LLC. | 000066270 | 3.5 km | 400 | 3,130–3,173 |
| Barnett Deep #1 | OXY USA Inc. | 000112498 | 3.5 km | 20,000 | 3,500–4,600 |
| Olufsen -A- #3I | Johnson Operating Company, LLC. | 000049721 | 3.6 km | 150 | 3,125–3,400 |
| West Moore Unit #91WI | Johnson Operating Company, LLC. | 000066271 | 3.7 km | 400 | 3,162–3,179 |
| Olufsen -A- #2 | Johnson Operating Company, LLC. | 000052522 | 3.8 km | 200 | 3,138–3,194 |
| Olufsen -A- #2I | Johnson Operating Company, LLC. | 000049720 | 3.8 km | 150 | 3,125–3,400 |
| West Moore Unit #37WI | Johnson Operating Company, LLC. | 000066269 | 4 km | 400 | 3,160–3,200 |
| West Moore Unit #48WI | Johnson Operating Company, LLC. | 000066282 | 4 km | 400 | 3,142–3,175 |
| West Moore Unit #46WI | Johnson Operating Company, LLC. | 000066286 | 4 km | 400 | 3,142–3,188 |
Disposal in Glasscock County → · How disposal permits and volumes work →
About this data
Event tx2025gedc 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/tx2025gedc, documented in the API reference.