File photo: VCG

NEW YORK, Nov. 11 (Xinhua) -- A 6.1-magnitude earthquake jolted 145 km NW of Pangai, Tonga at 23:03:27 GMT on Monday, the U.S. Geological Survey said.

The epicenter, with a depth of 10.0 km, was initially determined to be at 18.9038 degrees south latitude and 175.3695 degrees west longitude.