MANILA, Philippines — A magnitude 5.2 earthquake jolted offshore of Sarangani Island in Davao Occidental on Tuesday evening, according to the Philippine Institute of Volcanology and Seismology (Phivolcs). In its earthquake bulletin, Phivolcs said that it is an aftershock of the magnitude 7.8 off Maasim, Sarangani, last June 8 and the magnitude 6.5 earthquake off