EARTHQUAKES · GONZALES AREA · TX2021IISC
Magnitude 2.2 18 km E of Smiley, Texas
Thursday, April 29, 2021, 9:31:08 AM Central · 2021-04-29 14:31:08 UTC
A magnitude 2.2 earthquake 18 km E of Smiley, Texas on April 29, 2021 at 9:31 AM Central, 7.9 km deep, in the Gonzales County area.
It is one of 63 M2+ events located within 10 km of this spot, 2 of them in the thirty days before it; the largest nearby was M3.5.
15 active injection or disposal wells sit within 10 km, the nearest 4.7 km away and operated by Devon Energy Production Co, L.P.; together they hold 160,000 barrels a day of permitted capacity.
- M2.2
- ML, reviewed
- 7.9
- km deep · 25,805 ft
- 2
- M2+ within 10 km, prior 30 days
- 63
- M2+ within 10 km, all time
- 15
- active injection wells within 10 km
- 477
- permitted wells within 10 km
Location
- Epicenter
- 29.2710, -97.4430
- 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 |
|---|---|---|---|
| Apr 29, 2021, 8:30 AM | 2.5 | 1.7 km | 7.7 km |
| Apr 29, 2021, 8:25 AM | 2.1 | 1.3 km | 7.7 km |
| Mar 22, 2021, 11:04 PM | 2.0 | 9.8 km | 7.1 km |
| Oct 10, 2021, 6:41 AM | 2.5 | 9.6 km | 7.8 km |
| Oct 25, 2021, 10:49 AM | 2.3 | 6.5 km | 7.4 km |
| Aug 21, 2020, 7:12 AM | 2.4 | 10 km | 6.7 km |
| Jun 11, 2022, 7:48 PM | 2.0 | 1.5 km | 7.9 km |
| Jun 12, 2022, 1:44 PM | 2.1 | 1.8 km | 8.4 km |
| Jun 13, 2022, 1:03 AM | 2.2 | 2.4 km | 7.3 km |
| Jun 13, 2022, 9:53 AM | 2.3 | 1.7 km | 7.7 km |
| Jun 16, 2022, 10:09 AM | 2.8 | 1.9 km | 7.3 km |
| Jun 23, 2022, 3:43 AM | 2.1 | 2.5 km | 7.5 km |
Largest nearby on record: M3.5 on Oct 30, 2022.
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.
Disposal in Gonzales County → · How disposal permits and volumes work →
About this data
Event tx2021iisc 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/tx2021iisc, documented in the API reference.