MANILA, Philippines — A magnitude 5.3 earthquake struck the waters northwest off Dalupiri Island in Calayan, Cagayan early Thursday morning, state seismologists said. According to the Philippine Institute of Volcanology and Seismology’s (Phivolcs) latest advisory, no damage is expected from the earthquake, but aftershocks may occur. READ: Magnitude 5.3 quake hits waters off Cagayan on