A MAGNITUDE 6.0 earthquake shook Catanduanes province early Thursday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said but no damage or casualties have been reported.

Henry Peñarubia, research specialist of the Phivolcs, said the epicenter of the quake was 156 kilometers northeast of Virac, Catanduanes, at a depth of 31 kilometers.

The quake hit at 2:49 a.m., Peñarubia said in a television interview.

It was felt at Intensity 3 in Virac, Catanduanes and Naga City, and Intensity 2 in Legaspi City, Cabid-an, Sorsogon and Guinayangan Quezon.

The Philippines sits on the Pacific Ring of Fire, where continental plates meet, causing frequent seismic and volcanic activity. (ABC/Sunnex)