6.1 quake hits off southwest Philippines: USGS

AFP News
Fishermen are seen near the Mount Bulusan volcano on the main island of Luzon
Fishermen are seen near the Mount Bulusan volcano on the main island of Luzon in central Philippines in 2010. A 6.1-magnitude earthquake jolted the sea area off the Philippine island of Luzon early Sunday, US seismologists said

A 6.1-magnitude earthquake jolted the sea area off the Philippine island of Luzon early Sunday, US seismologists said.

The US Geological Survey said the quake had a depth of 35 kilometres (22 miles) and hit at 6:19 am (2219 GMT Saturday) some 143 kilometres southwest of the city of Baguio and 181 kilometres northwest of the capital Manila.

The Philippines sits on the Pacific Ring of Fire -- a belt around the Pacific Ocean dotted by active volcanoes and unstable ocean trenches.

In February, a 6.7-magnitude earthquake in the central Philippines triggered landslides that left over a hundred people dead or missing.

One fault line runs directly under Manila, a metropolis of more than 12 million people, and government seismologists have warned the city is unprepared for a major quake.