At least 69 people have so far been confirmed dead, a day after a major 6.9 magnitude earthquake hit the central Philippines.

Injured children cried and adults screamed while being treated on beds beneath blue tents outside the Cebu Provincial Hospital, having been wheeled outside as a precaution against waves of aftershocks overnight.

They are survivors of the shallow magnitude that struck late Tuesday off Cebu Island's north near Bogo, a city of 90,000 people, according to the U.S. Geological Survey.

Others were not so fortunate, and Agence France-Presse (AFP) journalists saw hospital workers loading black body bags into vans that took the dead to local mortuaries.

"Many of them were pinned down by debris, which caused their death," Office of Civil Defense deputy administrator Rafaelito Alejandro said on government television, putting the updated death toll at 69.