Authorities say a 4.6-magnitude earthquake has shaken eastern Romania, and was felt in the capital. There were no immediate reports of damage or injuries.

The National Earth Physics Institute director Constantin Ionescu said the quake occurred Monday at 5:49 p.m. (1549 GMT) in the region of Vrancea, some 140 kilometers (88 miles) northeast of Bucharest.

It was the strongest earthquake to hit Bucharest this year. In March 1977 a temblor with a magnitude of 7.2 hit eastern Romania, killing more than 1,500 and demolishing large parts of the capital.