At the moment there are no reports of damage or casualties from the earthquake. The earthquake hit at a depth of 10 km about 100 km southeast of Kupang, capital of the province of East Nusa Tenggara.
On Sunday, Indonesia's Lombok island was hit by a 6.9-magnitude earthquake. The quake's epicenter was located at the depth of 10 kilometers.
Earlier in August, the island was hit by a 7.0-magnitude quake, reportedly claiming the lives of 436 people.
In 2004 a tsunami caused by a magnitude 9.3 earthquake off the coast of Sumatra in western Indonesia killed 220,000.