EARTHQUAKES · FRIO AREA · TX2022FEPA
Magnitude 2.5 24 km E of Hilltop, Texas
Tuesday, March 15, 2022, 10:48:43 AM Central · 2022-03-15 15:48:43 UTC
A magnitude 2.5 earthquake 24 km E of Hilltop, Texas on March 15, 2022 at 10:48 AM Central, 5.6 km deep, in the Frio County area.
It is one of 72 M2+ events located within 10 km of this spot, 4 of them in the thirty days before it; the largest nearby was M3.5.
3 active injection or disposal wells sit within 10 km, the nearest 9.5 km away and operated by Oilfield Cleantech Water Rec LLC; together they hold 5,800 barrels a day of permitted capacity.
- M2.5
- ML, reviewed
- 5.6
- km deep · 18,343 ft
- 4
- M2+ within 10 km, prior 30 days
- 72
- M2+ within 10 km, all time
- 3
- active injection wells within 10 km
- 149
- permitted wells within 10 km
Location
- Epicenter
- 28.7230, -98.9310
- 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.
| When | Mag | Distance | Depth |
|---|---|---|---|
| Mar 15, 2022, 7:48 AM | 2.4 | 5 km | 7.0 km |
| Mar 14, 2022, 4:40 AM | 2.4 | 5.8 km | 5.8 km |
| Mar 16, 2022, 5:56 PM | 2.2 | 5.7 km | 6.8 km |
| Mar 13, 2022, 9:39 PM | 2.4 | 4.2 km | 5.4 km |
| Mar 12, 2022, 7:38 PM | 2.5 | 3.7 km | 5.6 km |
| Mar 18, 2022, 9:15 PM | 2.2 | 6.1 km | 7.7 km |
| Mar 27, 2022, 4:50 AM | 2.1 | 5.5 km | 5.2 km |
| Dec 5, 2021, 7:51 AM | 2.0 | 7 km | 6.1 km |
| Jul 17, 2022, 9:24 PM | 2.0 | 2.9 km | 5.7 km |
| Apr 12, 2021, 3:51 AM | 2.1 | 8.4 km | 5.7 km |
| Apr 11, 2021, 6:32 AM | 2.4 | 6.8 km | 5.4 km |
| Jul 13, 2023, 11:11 PM | 2.2 | 9 km | 5.8 km |
Largest nearby on record: M3.5 on Nov 15, 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.
| Well | Operator | UIC no. | Distance | Permitted, bbl/d | Injection zone, ft |
|---|---|---|---|---|---|
| Keystone/Keystone Ranch #4 | Oilfield Cleantech Water Rec LLC | 000089858 | 9.5 km | 800 | 4,776–5,368 |
| Shiner Ranch #7 | Trinity Operating (Usg), LLC | 000078949 | 9.5 km | 3,000 | 5,530–5,800 |
| Morales, Fred #3 | Blackbrush O & G, LLC | 000086630 | 9.9 km | 2,000 | 5,350–5,551 |
Disposal in Frio County → · How disposal permits and volumes work →
About this data
Event tx2022fepa 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/tx2022fepa, documented in the API reference.