The US Geological Survey says a magnitude-6.1 earthquake has been recorded in Indonesia.
The Pacific Tsunami Warning Center had no warning in effect.
The Geological Survey report said the quake hit 318 kilometres east of Dili, East Timor, just after 1730 GMT.
The quake's depth was recorded at 18 kilometres.
Indonesia is located on the Pacific "Ring of Fire", an arc of volcanoes and fault lines encircling the Pacific Basin.