MANILA, Philippines — Aftershocks may occur following the magnitude 6.4 earthquake that struck the waters off Davao Occidental on Saturday evening, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. According to Phivolcs, the earthquake hit 314 kilometers southeast of Balut Island, Sarangani, Davao Occidental at 10:58 p.m. on Saturday. State volcanologists identified the quake as tectonic in kind with a 57-kilometer depth of focus. Phivolcs also reported the following instrumental intensities: Intensity II READ: Magnitude 6.7 earthquake strikes off Davao Oriental Intensity I Despite the looming aftershocks, Phivolcs said it is not expecting any damage. /apl... Keep on reading: Aftershocks expected after 6.4 quake hits waters off Davao Occidental