EARTHQUAKES · MARTIN AREA · TX2023SUBV
Magnitude 3.3 31 km WSW of Ackerly, Texas
Sunday, September 24, 2023, 10:18:10 PM Central · 2023-09-25 03:18:10 UTC
A magnitude 3.3 earthquake 31 km WSW of Ackerly, Texas on September 24, 2023 at 10:18 PM Central, 9.7 km deep, in the Martin County area.
It is one of 207 M2+ events located within 10 km of this spot, 5 of them in the thirty days before it; the largest nearby was M5.1.
15 active injection or disposal wells sit within 10 km, the nearest 1.4 km away and operated by Deep Blue Operating I LLC; together they hold 379,950 barrels a day of permitted capacity.
29 of the nearby wells report daily to TexNet; they injected 201,385 barrels a day in August 2026.
- M3.3
- ML(TEXNE, reviewed
- 9.7
- km deep · 31,854 ft
- 5
- M2+ within 10 km, prior 30 days
- 207
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 1,086
- permitted wells within 10 km
Location
- Epicenter
- 32.4030, -102.0210
- County area
- Martin 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 |
|---|---|---|---|
| Oct 9, 2023, 8:24 PM | 2.7 | 1.5 km | 8.8 km |
| Sep 9, 2023, 10:27 PM | 2.3 | 6.9 km | 9.9 km |
| Sep 8, 2023, 1:46 AM | 2.4 | 9.6 km | 8.4 km |
| Sep 4, 2023, 11:47 PM | 2.0 | 9.5 km | 5.5 km |
| Oct 18, 2023, 9:43 AM | 2.1 | 7.5 km | 8.6 km |
| Sep 1, 2023, 10:10 AM | 2.2 | 6.1 km | 9.7 km |
| Aug 26, 2023, 2:42 AM | 3.1 | 7.8 km | 9.1 km |
| Aug 25, 2023, 3:32 PM | 2.1 | 9 km | 8.8 km |
| Aug 23, 2023, 9:23 AM | 2.2 | 6.7 km | 9.9 km |
| Aug 21, 2023, 11:11 PM | 3.4 | 0.7 km | 10.6 km |
| Aug 19, 2023, 5:19 PM | 2.2 | 6.9 km | 11.5 km |
| Nov 1, 2023, 4:04 PM | 2.0 | 8.6 km | 9.4 km |
Largest nearby on record: M5.1 on Sep 17, 2024.
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. 29 of these report daily to TexNet: 201K bbl/d in Aug 2026.
Disposal in Martin County → · How disposal permits and volumes work →
About this data
Event tx2023subv 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/tx2023subv, documented in the API reference.