Mindanao Shaken by Major Earthquake, Authorities Monitor Tsunami Risk MINDANAO – A powerful magnitude 7.8 earthquake struck off the coast of Sarangani on Monday morning, prompting the Philippine Institute of Volcanology and Seismology (PHIVOLCS) to issue a tsunami warning for several coastal provinces in southern Philippines. The earthquake occurred at around 7:37 a.m. and was … Read more