A strong earthquake of magnitude 6.6 struck deep off of Indonesia's Java island on Friday, but there was no risk of tsunami, the country's geophysics agency said.
The quake had a depth of 632 km (393 miles), the agency said, with aftershocks felt about 20 minutes later of a magnitude of 5.5.
The quake was felt in the urban centres of Surabaya, Tuban, Semarang and Bali's Denpasar, according to the disaster agency.
