DAVAO CITY, Philippines --- Geologists from the Philippine Institute of Volcanology and Seismology (Phivolcs) placed markers in several fault lines in Davao Oriental. There are fault lines found in Mati City and in the municipality of Lupon. The fault lines cut across portions of barangays Marayag, Calapagan, and Don Marcelino in Lupon and in the villages of Taguibo, Sainz … [Read more...] about Experts map Davao Oriental fault lines