Texas earthquakes

M4.8 earthquake 14 km SSW of Falls City, Texas

A magnitude 4.8 earthquake struck 14 km SSW of Falls City, Texas on Thu, Oct 20, 2011, 7:24 AM CDT (12:24 UTC), 5 km (3 mi) below the surface.

Falls City forecastMore in Texas

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
4.8 (mwr), light
Local time
UTC
2011-10-20 12:24:41 UTC
Depth
5.0 km (3.1 mi), shallow
Epicenter
28.865° N, 98.079° W
Region
Texas
Felt reports
1,473
Strongest shaking
VI, strong shaking
Tsunami flag
No
Status
Reviewed by a seismologist

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated
VI, strong shaking
Map
Automatic
USGS ShakeMap: estimated shaking intensity around the epicenter
Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

1,473 people reported to the USGS what they felt; the strongest reported shaking was VI, strong shaking.

Did You Feel It? map: shaking reported by the public
Shaking reported by the public, by area. Map: USGS Did You Feel It?

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting
Normal
Nodal plane 1
Strike 39°, dip 44°, rake -118°
Nodal plane 2
Strike 255°, dip 52°, rake -66°

How well it is located

Reviewed by a seismologist.

Depth from
OPERATOR_ASSIGNED
Station coverage gap
31°
Stations used
220

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.8 and up: 1 in the 60 days after this one and 0 in the 30 days before it.

After

Earthquakes todayTexas earthquakesLive radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000j9kx (also filed as usb0006alu, atlas20111020122441). Read Tue, Sep 22, 2026, 9:58 AM UTC.