Story highlights The quake rattles a remote swath of sea between the Pacific and Indian oceans

It is 9 kilometers deep and was centered 212 miles from Saumlaki, Indonesia

No tsunami warnings or advisories are immediately issued

A 6.3-magnitude earthquake struck early Sunday off Indonesia, according to the U.S. Geological Survey.

The quake rattled a remote swath of sea between the Pacific and Indian oceans, north of Australia and east of Timor-Leste, some 5.6 miles (9 kilometers) deep, according to the U.S. agency.

It was centered approximately 212 miles (340 kilometers) west-northwest of Saumlaki in Indonesia's Tanimbar Islands, 217 miles east-northeast of Dili, Timor-Leste, and 226 miles of Ambon, Indonesia.

Neither the Pacific Tsunami Warning Center nor the Japan Meteorological Agency issued tsunami warnings or advisories immediately after the tremor.