KORONADAL CITY, South Cotabato — Authorities in Sultan Kudarat and Sarangani provinces suspended classes on Wednesday after a magnitude 6.4 earthquake struck off the coast of Sarangani, Davao Occidental shortly past noon for the safety of students and school personnel. The Philippine Institute of Volcanology and Seismology initially reported that a magnitude 7 quake struck off the coastal town of Sarangani. READ: Phivolcs downgrades earthquake that hit Sarangani to magnitude 6.4 In Sultan Kudarat, Gov. Datu Pax Ali Mangudadatu ordered the suspension of all afternoon classes at all levels in both public and private schools across the province, effective immediately. Mangudadatu […]...Keep on reading: Sultan Kudarat, Sarangani cut classes after earthquake