EARTHQUAKES · WILSON AREA · TX2018YZBA
Magnitude 2.0 11 km ENE of Falls City, Texas
Friday, December 21, 2018, 11:46:08 PM Central · 2018-12-22 05:46:08 UTC
A magnitude 2.0 earthquake 11 km ENE of Falls City, Texas on December 21, 2018 at 11:46 PM Central, 8.0 km deep, in the Wilson County area.
It is one of 169 M2+ events located within 10 km of this spot, 4 of them in the thirty days before it; the largest nearby was M4.6.
4 active injection or disposal wells sit within 10 km, the nearest 4.8 km away and operated by Estate of James L. Nelson; together they hold 47,500 barrels a day of permitted capacity.
2 of the nearby wells report daily to TexNet; they injected 21,405 barrels a day in August 2026.
- M2.0
- ML, reviewed
- 8.0
- km deep · 26,166 ft
- 4
- M2+ within 10 km, prior 30 days
- 169
- M2+ within 10 km, all time
- 4
- active injection wells within 10 km
- 710
- permitted wells within 10 km
Location
- Epicenter
- 29.0240, -97.9130
- 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 |
|---|---|---|---|
| Dec 21, 2018, 11:32 PM | 3.2 | 4.2 km | 5.0 km |
| Dec 22, 2018, 1:41 AM | 3.0 | 6.6 km | 5.0 km |
| Dec 21, 2018, 8:17 PM | 3.0 | 0.9 km | 6.8 km |
| Dec 22, 2018, 3:26 AM | 2.3 | 1.1 km | 7.1 km |
| Dec 22, 2018, 11:08 AM | 2.0 | 0.6 km | 7.4 km |
| Dec 20, 2018, 12:04 PM | 2.2 | 0.6 km | 7.2 km |
| Nov 22, 2018, 6:55 PM | 2.1 | 4.2 km | 8.3 km |
| Nov 5, 2018, 3:15 PM | 2.2 | 3.8 km | 6.6 km |
| Nov 3, 2018, 10:00 PM | 2.8 | 4.1 km | 5.0 km |
| Nov 3, 2018, 3:32 AM | 2.3 | 4.5 km | 6.9 km |
| Nov 2, 2018, 8:02 PM | 2.3 | 3.8 km | 6.6 km |
| Feb 16, 2019, 7:33 PM | 2.4 | 6.3 km | 5.0 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. 2 of these report daily to TexNet: 21.4K 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 | 4.8 km | 12,500 | 5,600–7,300 |
| Skloss, Emil -SWD- #1 | 2 D Oil & Gas LLC | 000046064 | 6.8 km | 4,000 | 4,868–4,988 |
| Olinick, Jerome #151 | Britanco, L.L.C. | 000001614 | 8.8 km | 6,000 | 1,600–1,675 |
| Helena SWD #1 | Pilot Water Solutions SWD LLC | 000104980 | 9 km | 25,000 | 6,840–7,650 |
Disposal in Wilson County → · How disposal permits and volumes work →
About this data
Event tx2018yzba 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/tx2018yzba, documented in the API reference.