PODGORICA, Montenegro — A moderately strong earthquake shook Montenegro and neighboring countries early Thursday, causing some damage but no reported casualties. The magnitude 5.4 earthquake hit an uninhabited border area between Montenegro and Bosnia-Herzegovina, the U.S. Geological Survey said. Milena Tomanović from Montenegro’s Institute for Hydrology and Seismology told reporters that 30 smaller quakes followed the strongest one. Authorities in …