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.
The smallest independent state in the world, Vatican City draws more than six million visitors each year to one of the holiest sites in the world: St. Peter's Basilica
In South Sudan, 5M people don't know where their next meal is coming from and, of them, 100,000 are starving and face death. If not for humanitarian efforts, millions could die