A powerful 7.8-magnitude earthquake struck off the southern Philippines on Monday, killing at least four people, injuring more than 200 and triggering a tsunami. Buildings were damaged, flights were canceled and authorities warned coastal residents to move to higher ground.

A powerful 7.8-magnitude earthquake struck off the southern Philippines on Monday, killing at least four people, injuring more than 200 and triggering a tsunami. Buildings were…

Tsunami warnings project one metre waves will begin to arrive in various regions from 11.30am local time.