Disaster officials said the early morning quake, initially measured at a magnitude of 6.8, was felt in towns such as Ambon and Kairatu, waking some residents, who said it felt like trucks rumbling past.
A university building was slightly damaged and a bridge cracked in Ambon, about 40 km (25 miles) from the epicenter, said Agus Wibowo, a spokesman for the disaster mitigation agency.






