The Potsdam-based center said the magnitude 4.5 temblor hit at about 1:45 p.m. local time, with an epicenter just east of the city of Koblenz.
There were no immediate reports of injuries or property damage.
Syrian government troops with Moscow's aerial muscle behind them making gains, as rival rebels team up against Russian onslaught
Escalating violence becomes explosive with allegedly deadly Israeli airstrikes and Palestinian rockets and suicide bombings
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