BEIJING, Jan. 31 (Xinhua) -- An earthquake with a magnitude of 5.1 jolted 106 km N of Hihifo, Tonga at 0435 GMT on Wednesday, the U.S. Geological Survey said.
The epicenter, with a depth of 10.0 km, was initially determined to be at 15.00 degrees south latitude and 173.63 degrees west longitude. ■
