HONG KONG, March 31 (Xinhua) -- An earthquake with a magnitude of 5.5 jolted 155 km NNW of Houma, Tonga at 03:01 GMT on Sunday, the U.S. Geological Survey said.
The epicenter, with a depth of 10.0 km, was initially determined to be at 19.92 degrees south latitude and 175.97 degrees west longitude. ■
