JAKARTA, Aug 15 (Reuters) - An earthquake of magnitude 7.7 and several aftershocks struck off the coast of eastern Indonesia early on Saturday, the nation's geophysics agency BMKG said, while tsunami waves of less than 1 metre (3 feet) were recorded in several areas.

A magnitude-7.7 earthquake hit off the coast of Indonesia in the eastern Flores region, according to the United States Geological Survey.