The earthquake was centered northeast of the city of Mataram on the island of Lombok -- a popular tourist destination -- 15 kilometers under the surface, said the Agency for Meteorology, Climatology and Geophysics (BMKG).

A tsunami alert was also issued for the region.

There is no official word yet about deaths or injuries.

Last week, one person was killed when a magnitude 6.4 quake struck the same region, leading to the evacuation of more than 1,000 mountaineers.

Anadolu Agency