MANILA, Philippines - The Philippine Institute of Volcanology and Seismology (Phivolcs) said the Davao Gulf is vulnerable to tsunamis, the Philippine News Agency reported on Wednesday.
Phivolcs Region 11 chief Desederio Cabanlit said the area is unprepared for any tsunami in case an earthquake occurs because the region has no tsunami warning device.
Only the Philippines' main island of Luzon has a tsunami warning device, according to Cabanlit.
Cabanlit said Davao residents lack awareness and preparedness on what to do during earthquakes and tsunamis.
The last major earthquake drill in the region occurred in Boston, Davao Oriental last year.
Cabanlit said fault lines were detected in Lupon, Davao Oriental; and Mawab and Mabini, Compostela Valley.
A fault line is a break or fracture in the ground that occurs when the earth's tectonic plates move or shift, Cabanlit explained.