EARTHQUAKES · FRIO AREA · TX2019DGIQ

Magnitude 2.1 9 km SE of Dilley, Texas

Friday, February 15, 2019, 9:47:28 PM Central · 2019-02-16 03:47:28 UTC

A magnitude 2.1 earthquake 9 km SE of Dilley, Texas on February 15, 2019 at 9:47 PM Central, 8.0 km deep, in the Frio County area.

It is one of 25 M2+ events located within 10 km of this spot, 1 of them in the thirty days before it; the largest nearby was M3.6.

3 active injection or disposal wells sit within 10 km, the nearest 7.8 km away and operated by FW Eagle Ford I, LLC; together they hold 34,000 barrels a day of permitted capacity.

M2.1
ML, reviewed
8.0
km deep · 26,139 ft
1
M2+ within 10 km, prior 30 days
25
M2+ within 10 km, all time
3
active injection wells within 10 km
192
permitted wells within 10 km

Location

Epicenter
28.6130, -99.0910
County area
Frio 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
Feb 18, 2019, 3:13 AM2.08.1 km5.1 km
Feb 5, 2019, 4:12 PM2.34.7 km2.4 km
Mar 13, 2019, 1:56 PM2.06.8 km2.0 km
Mar 19, 2019, 5:31 PM2.16.9 km1.2 km
Apr 11, 2019, 6:58 PM2.19.9 km7.2 km
Apr 12, 2019, 7:24 AM2.02.6 km8.3 km
Oct 31, 2024, 6:07 PM2.59.1 km6.0 km
Nov 9, 2024, 1:10 AM2.75.7 km6.9 km
Nov 21, 2024, 9:38 AM2.98.2 km4.8 km
May 6, 2025, 10:42 AM2.07.6 km7.6 km
May 6, 2025, 2:40 PM2.07.2 km4.6 km
May 8, 2025, 11:26 PM2.46.5 km5.6 km

Largest nearby on record: M3.6 on Jul 12, 2026.

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
Lonestar Operating SWD #1FW Eagle Ford I, LLC0001146167.8 km4,0008,341–8,949
Krisjenn Ranch SWD #1C&e Production, LLC0001080848.9 km20,0007,900–9,500
Cat-Dilley SWD #2Mid River Midstream LLC0001043099.6 km10,0005,400–6,000

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

About this data

Event tx2019dgiq 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/tx2019dgiq, documented in the API reference.