Two minor earthquakes have shaken the Dallas-Fort Worth area, but no significant damage has immediately been reported.

The U.S. Geological Survey says an earthquake with a 2.5 magnitude was reported at 11:25 p.m. Thursday, centered in the Grand Prairie area.

The agency says a slightly stronger quake, at 3.0 magnitude, occurred at 12:01 a.m. Friday, centered in Irving.

Law enforcement agencies across northern Texas say they received some 911 calls from people who had felt the quakes.