MANILA, Philippines — The Philippine Institute of Volcanology and Seismology (Phivolcs) reported two earthquakes that hit Balut Island, Sarangani at separate times early Saturday, July 18. At 12:12 a.m, a 5.5 magnitude earthquake jolted 10 kilometers southwest of Balut Island. It has a depth of 17 kilometers, according to Phivolcs. READ: Magnitude 5.6 quake hits Balut