A strong 6.2 magnitude earthquake struck eastern Indonesia on Tuesday (Aug 28), the US Geological Survey said, but there was no tsunami warning or immediate reports of damage.
The quake hit at a shallow depth of 8km, about 100km south-east of Kupang on the Indonesian portion of Timor island, the USGS said.
A string of deadly earthquakes that rocked Indonesia's Lombok island this summer killed 555 people.
Indonesia, one of the most disaster-prone nations on earth, straddles the so-called Pacific "Ring of Fire", where tectonic plates collide and many of the world's volcanic eruptions and earthquakes occur.
In 2004 a tsunami triggered by a magnitude 9.3 undersea earthquake off the coast of Sumatra in western Indonesia killed 220,000 people in countries around the Indian Ocean, including 168,000 in Indonesia.
This story is developing.