Earthquake · reviewed by a seismologist
M 1.5ml
Earthquake near Three Rivers, TX
Yes: an earthquake was likely felt in Three Rivers in the last 24 hours. M 3.1, 87 km (54 mi) WNW of Three Rivers, at 3:20 am CST on 12 November 2026 (09:20 UTC); the estimated shaking in Three Rivers was intensity II (weak). Every earthquake near Three Rivers
This page: a magnitude 1.5 earthquake was recorded 23 km (14 mi) north-northwest of Three Rivers, TX, at 6:01 am CDT on 28 October 2023 (11:01 UTC), 6.5 km deep.
USGS: 23 km NNW of Three Rivers, Texas
94 km (59 mi) SSE of San Antonio, TX
- When
- 6:01 am CDT on 28 October 2023 ()
- Where
- 23 km (14 mi) north-northwest of Three Rivers, TX · earthquakes near Three Rivers
- Texas today
- every earthquake in Texas in the last 24 hours
- Magnitude
- M 1.5 (ml)
- Depth
- 6.5 km below the surface
- Felt
- no reports yet
- Nearest
- Atascosa County, 36 km NW
- Status
- Reviewed by a seismologist
USGS · last changed by USGS · we first saw it 366 days ago
Earthquake alerts for Three Rivers, TX
Get a notification in this browser when USGS records an earthquake near Three Rivers, TX. No account or email needed.
Alerts are on for .
Not a warning. An alert comes after USGS publishes a quake, usually minutes after the shaking. For early warning use ShakeAlert, through your phone's Wireless Emergency Alerts or the MyShake app.
This was a minor earthquake. Quakes this small are rarely felt and do not cause damage.
At this magnitude and depth it was probably too small to be felt, even directly above it. In Three Rivers, 23 km away, the estimate is intensity II (weak). Estimated from magnitude, depth and distance with the intensity equation USGS Did You Feel It? uses; felt reports, where there are any, are the measurement.
How big was it?
This earthquake released about 5.4 lb of TNT. Magnitude is logarithmic: each whole step up releases about 32 times more energy, so a magnitude 2.5 would have released about 32 times as much.
- Mineral, Virginia 2011 M 5.8 2,800,000× the energy of this one
- Magna, Utah 2020 M 5.7 2,000,000× the energy of this one
- Around the size people start to feel M 3.0 180× the energy of this one
- This earthquake M 1.5 about 5.4 lb of TNT
Energy from the Gutenberg–Richter relation (log10E = 1.5M + 4.8), rounded to two figures; bar length is magnitude, which is already a logarithm of energy. Magnitudes of past earthquakes from the USGS catalogue.
For this area
The largest earthquake within 50 km since 2016 was M 4.0 on 2018-05-01 — about 5,600 times the energy of this one.
Before 2016, the USGS record since 1900 lists no earthquake of M5 or more within 50 km.
Since 2016: the QuakeIndex catalogue (US, M1.5+), built from the USGS FDSN event service. Before 2016: USGS ComCat, M5+ from 1900. Distances are between epicentres. This is the record, not a forecast.
Where
Epicentre 28.6370, -98.3080. Map © OpenStreetMap contributors.
Nearby places
| Place | Distance | Direction from the epicentre | |
|---|---|---|---|
| Atascosa County, TX | 36 km (22 mi) | NW | earthquakes near Atascosa County |
| Live Oak County, TX | 36 km (23 mi) | SSE | earthquakes near Live Oak County |
| McMullen County, TX | 39 km (24 mi) | SW | earthquakes near McMullen County |
| Karnes County, TX | 54 km (33 mi) | NE | earthquakes near Karnes County |
| Bee County, TX | 60 km (38 mi) | ESE | earthquakes near Bee County |
| Wilson County, TX | 63 km (39 mi) | NNE | earthquakes near Wilson County |
Places and coordinates from the US Census Bureau Gazetteer (2024). Distances are from the epicentre.
Aftershocks so far
58 earthquakes have been recorded within 50 km since this one.
- 1.7 12 km WSW of Falls City, Texas
- 2.2 12 km WSW of Falls City, Texas
- 2.1 12 km WSW of Falls City, Texas
- 1.8 19 km NE of Tilden, Texas
- 1.7 19 km NE of Tilden, Texas
- 1.6 13 km WSW of Falls City, Texas
- 2.5 13 km WSW of Falls City, Texas
- 1.7 12 km WSW of Falls City, Texas
- 2.1 12 km WSW of Falls City, Texas
- 1.8 13 km WSW of Falls City, Texas
- 1.7 13 km WSW of Falls City, Texas
- 1.7 12 km WSW of Falls City, Texas
- 1.7 12 km WSW of Falls City, Texas
- 1.7 14 km WSW of Falls City, Texas
- 1.7 12 km WSW of Falls City, Texas
Counted from the QuakeIndex database, which ingests the USGS feed every 30 seconds · as of . QuakeIndex does not forecast aftershocks. When USGS issues an operational aftershock forecast it appears on the USGS event page.
On USGS
- The official USGS event page — the source of record for every value above
- Did you feel it? Report it to USGS — reports go to USGS, not to us
- ShakeMap for this event, when USGS has produced one
QuakeIndex does not issue warnings. For earthquake early warning see ShakeAlert.