M4.1 earthquake 36 km NNW of Toyah, Texas

A magnitude 4.1 earthquake struck 36 km NNW of Toyah, Texas on Sat, Sep 18, 2021, 5:27 PM CDT (22:27 UTC), 7 km (5 mi) below the surface.

A larger quake followed: M4.3 36 km NNW of Toyah, Texas. This one was a foreshock.

Map

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

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

3 people reported to the USGS what they felt; the strongest reported shaking was IV, light shaking.

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

Reviewed by a seismologist.

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

Within 100 km, magnitude 1.5 and up: at least 199 in the 60 days after this one and at least 200 in the 30 days before it.

The first 60 of at least 199.

From the USGS Earthquake Hazards Program and its partner networks, event tx2021sitf (also filed as us7000fcie). Read Sat, Sep 26, 2026, 9:01 AM UTC.