Strong 6.3 earthquake hits off Tonga: USGS quake monitor

WELLINGTON: A powerful 6.3-magnitude earthquake struck off Tonga Saturday but there was no threat of a tsunami, US seismologists said.

The offshore quake hit at 09:07 am (2107 GMT Saturday) and was centered around 124 kilometres (77 miles) northwest of Tonga, the US Geological Survey (USGS) said on its website. The Pacific Tsunami Warning Center said there was no tsunami threat.