EARTHQUAKES · GONZALES AREA · TX2021UCOT
Magnitude 2.1 18 km SSE of Gonzales, Texas
Wednesday, October 13, 2021, 7:26:28 PM Central · 2021-10-14 00:26:28 UTC
A magnitude 2.1 earthquake 18 km SSE of Gonzales, Texas on October 13, 2021 at 7:26 PM Central, 7.9 km deep, in the Gonzales County area.
It is one of 28 M2+ events located within 10 km of this spot, 6 of them in the thirty days before it; the largest nearby was M3.0.
12 active injection or disposal wells sit within 10 km, the nearest 2.4 km away and operated by Evx Operating LLC; together they hold 105,000 barrels a day of permitted capacity.
- M2.1
- ML, reviewed
- 7.9
- km deep · 26,028 ft
- 6
- M2+ within 10 km, prior 30 days
- 28
- M2+ within 10 km, all time
- 12
- active injection wells within 10 km
- 431
- permitted wells within 10 km
Location
- Epicenter
- 29.3480, -97.3820
- County area
- Gonzales 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 11, 2021, 3:48 PM | 2.2 | 0.7 km | 7.5 km |
| Oct 11, 2021, 10:36 AM | 2.2 | 3.6 km | 7.1 km |
| Oct 10, 2021, 10:53 PM | 2.6 | 0.4 km | 8.0 km |
| Oct 10, 2021, 12:25 PM | 2.5 | 1.9 km | 3.5 km |
| Oct 10, 2021, 6:41 AM | 2.5 | 1.8 km | 7.8 km |
| Oct 10, 2021, 5:58 AM | 2.2 | 0.9 km | 5.5 km |
| Oct 25, 2021, 10:49 AM | 2.3 | 9.3 km | 7.4 km |
| Jan 1, 2023, 5:39 PM | 2.2 | 9.3 km | 6.5 km |
| Jan 2, 2023, 7:35 AM | 2.0 | 9.4 km | 7.5 km |
| May 5, 2023, 6:32 PM | 2.0 | 7.7 km | 8.5 km |
| May 18, 2023, 5:16 PM | 2.3 | 2.6 km | 7.1 km |
| Sep 25, 2023, 2:01 PM | 2.0 | 2.8 km | 3.0 km |
Largest nearby on record: M3.0 on Jan 1, 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.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| FF Cheapside SWD #2 | Evx Operating LLC | 000104786 | 2.4 km | 25,000 | 5,600–7,500 |
| Gonzales SWD #1 | Crosstex Environmental STX, LLC | 000103772 | 4.7 km | 25,000 | 5,700–7,350 |
| Bruns Unit #1 | Ruidoso Resources LLC | 000103620 | 5.3 km | 10,000 | 4,620–7,900 |
| Zgabay A #6W | Devon Energy Production Co, L.P. | 000125975 | 8.1 km | 5,000 | 11,715–12,139 |
| Zgabay A #5W | Devon Energy Production Co, L.P. | 000125974 | 8.1 km | 5,000 | 11,605–12,143 |
| Zgabay A #3W | Devon Energy Production Co, L.P. | 000125972 | 8.1 km | 5,000 | 11,671–12,112 |
| Zgabay A #2W | Devon Energy Production Co, L.P. | 000125971 | 8.1 km | 5,000 | 11,732–11,970 |
| Zgabay A #9W | Devon Energy Production Co, L.P. | 000125982 | 9.7 km | 5,000 | 11,816–12,118 |
| Zgabay A #8W | Devon Energy Production Co, L.P. | 000125981 | 9.7 km | 5,000 | 11,805–12,130 |
| Zgabay A #13W | Devon Energy Production Co, L.P. | 000125985 | 10 km | 5,000 | 11,741–12,144 |
| Zgabay A #11W | Devon Energy Production Co, L.P. | 000125983 | 10 km | 5,000 | 11,782–12,096 |
| Zgabay A #12W | Devon Energy Production Co, L.P. | 000125984 | 10 km | 5,000 | 11,776–12,055 |
Disposal in Gonzales County → · How disposal permits and volumes work →
About this data
Event tx2021ucot 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/tx2021ucot, documented in the API reference.