EARTHQUAKES · KARNES AREA · TX2023ODND

Magnitude 2.1 12 km SSW of Smiley, Texas

Thursday, July 20, 2023, 10:32:22 PM Central · 2023-07-21 03:32:22 UTC

A magnitude 2.1 earthquake 12 km SSW of Smiley, Texas on July 20, 2023 at 10:32 PM Central, 7.5 km deep, in the Karnes County area.

It is one of 85 M2+ events located within 10 km of this spot, 2 of them in the thirty days before it; the largest nearby was M3.4.

4 active injection or disposal wells sit within 10 km, the nearest 7 km away and operated by Mid River Midstream LLC; together they hold 82,500 barrels a day of permitted capacity.

M2.1
ML, reviewed
7.5
km deep · 24,565 ft
2
M2+ within 10 km, prior 30 days
85
M2+ within 10 km, all time
4
active injection wells within 10 km
523
permitted wells within 10 km

Location

Epicenter
29.1710, -97.6810
County area
Karnes 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.

WhenMagDistanceDepth
Jul 21, 2023, 1:58 AM2.31.2 km7.5 km
Jul 21, 2023, 11:44 PM2.20.8 km7.8 km
Jul 22, 2023, 12:01 AM2.31.3 km6.9 km
Jul 24, 2023, 8:23 PM2.10.1 km7.3 km
Jul 6, 2023, 9:15 AM2.02.3 km7.7 km
Jun 21, 2023, 12:04 PM2.22.3 km7.8 km
Jun 20, 2023, 4:24 PM2.53.3 km7.6 km
Sep 3, 2023, 4:36 AM2.37.1 km8.4 km
May 22, 2023, 3:36 AM2.96.2 km5.5 km
May 14, 2023, 4:39 PM2.25.4 km2.8 km
May 5, 2023, 6:22 PM2.18.3 km7.4 km
May 4, 2023, 9:13 PM2.48.2 km6.7 km

Largest nearby on record: M3.4 on Apr 10, 2021.

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.

WellOperatorUIC no.DistancePermitted, bbl/dInjection zone, ft
Wilke SWD #1Mid River Midstream LLC0000765017 km7,5005,000–5,484
Copeland-Gsi #1H #1Milestone Smiley, LLC0001072987.4 km25,0009,230–9,750
Lamza SWD #1Goodnight Midstream Permian, LLC0001035338.2 km25,0005,000–8,000
Henning #2Pilot Water Solutions SWD LLC0001151298.7 km25,0005,300–7,950

Disposal in Karnes County → · How disposal permits and volumes work →

About this data

Event tx2023odnd 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/tx2023odnd, documented in the API reference.