EARTHQUAKES · WILSON AREA · TX2018OKZZ
Magnitude 2.3 11 km ENE of Falls City, Texas
Wednesday, July 25, 2018, 12:58:58 AM Central · 2018-07-25 05:58:58 UTC
A magnitude 2.3 earthquake 11 km ENE of Falls City, Texas on July 25, 2018 at 12:58 AM Central, 7.3 km deep, in the Wilson County area.
It is one of 168 M2+ events located within 10 km of this spot, 5 of them in the thirty days before it; the largest nearby was M4.6.
5 active injection or disposal wells sit within 10 km, the nearest 4.7 km away and operated by Estate of James L. Nelson; together they hold 67,500 barrels a day of permitted capacity.
3 of the nearby wells report daily to TexNet; they injected 40,912 barrels a day in August 2026.
- M2.3
- ML, reviewed
- 7.3
- km deep · 23,932 ft
- 5
- M2+ within 10 km, prior 30 days
- 168
- M2+ within 10 km, all time
- 5
- active injection wells within 10 km
- 739
- permitted wells within 10 km
Location
- Epicenter
- 29.0210, -97.9050
- County area
- Wilson 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 20, 2018, 5:42 AM | 2.5 | 5.6 km | 5.0 km |
| Jul 20, 2018, 12:53 AM | 2.0 | 1.3 km | 8.9 km |
| Jun 30, 2018, 9:46 PM | 2.0 | 1.5 km | 7.4 km |
| Jun 30, 2018, 7:35 PM | 2.4 | 3.3 km | 6.0 km |
| Jun 26, 2018, 12:57 PM | 2.2 | 1.2 km | 6.6 km |
| Jun 11, 2018, 3:27 PM | 2.3 | 4.1 km | 6.6 km |
| Jun 11, 2018, 3:04 PM | 2.3 | 2.2 km | 5.9 km |
| Nov 2, 2018, 8:02 PM | 2.3 | 3.5 km | 6.6 km |
| Nov 3, 2018, 3:32 AM | 2.3 | 4.3 km | 6.9 km |
| Nov 3, 2018, 10:00 PM | 2.8 | 3.6 km | 5.0 km |
| Nov 5, 2018, 3:15 PM | 2.2 | 3.7 km | 6.6 km |
| Nov 22, 2018, 6:55 PM | 2.1 | 4.1 km | 8.3 km |
Largest nearby on record: M4.6 on Jan 30, 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. 3 of these report daily to TexNet: 40.9K bbl/d in Aug 2026.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Karnes SWD #2 | Estate of James L. Nelson | 000116819 | 4.7 km | 12,500 | 5,600–7,300 |
| Skloss, Emil -SWD- #1 | 2 D Oil & Gas LLC | 000046064 | 7.4 km | 4,000 | 4,868–4,988 |
| Helena SWD #1 | Pilot Water Solutions SWD LLC | 000104980 | 8.2 km | 25,000 | 6,840–7,650 |
| Olinick, Jerome #151 | Britanco, L.L.C. | 000001614 | 9.5 km | 6,000 | 1,600–1,675 |
| J. P. Wright #1 | Evx Operating LLC | 000109247 | 9.9 km | 20,000 | 5,500–7,200 |
Disposal in Wilson County → · How disposal permits and volumes work →
About this data
Event tx2018okzz 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/tx2018okzz, documented in the API reference.