An undersea earthquake rocked parts of southeastern Indonesia on Tuesday, but there were no immediate reports of damage or casualties.

Indonesia's Meteorology and Geophysics Agency said it was a 6.4 magnitude quake, but the U.S. Geological Survey said it recorded it as 5.1.

The earthquake was centered 20 miles beneath the Arafura Sea, about 90 miles southwest of Tual, the agency said.