MANILA, Philippines – A magnitude 5.5 earthquake jolted Surigao del Sur on Monday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. The tectonic quake struck 24 kilometers northeast of the municipality of Bayabas at 12:48 a.m. It was 20-km. deep. READ: Earthquake in numbers: Magnitude vs Intensity Intensity IV was felt in Bayabas and City