Hong Kong, Apr 1 (IANS): An earthquake measuring 5.4 on the Richter scale jolted Tonga Saturday, the US Geological Survey (USGS) said.
The temblor that hit at 1706 GMT had its epicentre at a depth of about 123 km, Xinhua reported. It was initially determined to be at 20.1551 degrees south latitude and 174.7745 degrees west longitude.