SUVA, Jan. 19 (Xinhua) -- An earthquake with a magnitude of 6.4 jolted 125 km NW of Fangale'ounga, Tonga, at 11:12 local time on Friday, the U.S. Geological Survey (USGS) said.
There were no immediate reports of casualty or damage.
The epicenter, with a depth of 218.1 km, was determined to be at 18.928 degrees south latitude and 175.147 degrees west longitude, according to the USGS.
The Pacific Tsunami Warning Center did not immediately issue a tsunami warning based on the quake.
Pacific island countries such as Fiji, Tonga and Vanuatu lie on the so-called Pacific "Ring of Fire," an arc of earthquake and volcanic zones where continental plates collide producing frequent seismic activities. ■
