MANILA, Philippines — The number of aftershocks from the magnitude 7.8 offshore earthquake that struck Mindanao on June 8 has climbed to 3,860 as of 9 a.m. Friday, the Philippine Institute of Volcanology and Seismology (Phivolcs) said. The agency reported that of the total, 966 aftershocks have been plotted, while 64 were felt by residents