Danish geologists say a 4.4-magnitude quake has rattled the seabed between Denmark and Sweden, causing no damage or casualties. Trine Dahl-Jensen of the Geological Survey of Denmark and Greenland (GEUS) said Monday's quake was "pretty strong" by Danish standards. Dahl-Jensen says such quakes happen once or twice a decade, according to a report of the Associated Press. The epicenter was 20 kilometers (12.4 miles) southeast of the Danish island of Anholt in the Kattegat Sea. Media in Denmark and Sweden reported that residents in the two Scandinavian countries woke up when they felt the earth shake at 0257 GMT (10:57 p.m. EDT Sunday).