New Delhi, June 11 -- The mayor of a southern Philippine town that was devastated by a powerful earthquake pleaded Thursday for helicopters to transport food to stave off hunger in several landslide-isolated villages.

The 7.8 magnitude offshore quake, one of the strongest to hit the Philippine archipelago in a half century, struck Monday off the southern province of Sarangani and has left at least 47 people dead and injured 688 with 31 still missing.

More than 45,000 people remained displaced, about half in emergency shelters, after the quake damaged more than 12,600 houses in farming towns and cities. Many were still too traumatized to return home due to aftershocks, provincial officials said.

Sarangani reported 20 dead from the quake...