A magnitude four earthquake shook parts of west Alabama about 5:20 a.m. Sunday, but apparently caused no damage.
The U.S.Geological Survey's National Earthquake Information Center says the epicenter of the moderate earthquake was located 25 miles southwest of Tuscaloosa and 45 miles north of Linden.
While no damage was reported, some people in Eutaw, Livingston and Northport felt a light shake.
Earthquake magnitudes are measures of earthquake size calculated from ground motion recorded on seismographs.
For more information about earthquakes, visit neic.usgs.gov.