Rescuers were using heavy duty equipment and search dogs to try to reach people trapped after a four-storey building went down, crushing the ground-floor supermarket, she said.
Five people died and at least 40 others were trapped in the Chuzon supermarket, also in Porac, after the building collapsed.
Emergency responders carry out an natural disaster victim from a commercial building in Porac town, Pampanga Province, north of Manila, Philippines. "People looked in shock, but no one was shouting or anything like that", she said. The leg of one of the two survivors had to be amputated to extricate him, Porac Councilor Maynard Lapid said, adding that at least eight trapped people could be heard pleading for help at one point.
A young girl and her grandmother were crushed to death when a wall fell in their house in Lubao town in Pampanga, a badly-hit province north of Manila, said provincial Governor Lilia Pineda.
An old Roman Catholic church in Pampanga was damaged in the quake, which also caused cracks in highways and bridges.
The quake hit 60km northwest of the capital, Manila, disrupting air, rail and road transport and causing some damage to buildings and infrastructure.
Zoo Keeper Injured In Attack By Rare Sumatran Tiger In US
Topeka's FOX affiliate, KSNT-TV, reported that all of the zoo's tigers were removed from their public enclosures for the day. Sumatran tigers are critically endangered, and only about 400 remain in the wild, according to the World Wildlife Fund .
Clark International Airport Corp. president Jim Melo announced the airport's closure for 24 hours due to damage in its terminal.
Philippine Institute of Seismology and Volcanology chief Renato Solidum says the quake, which was caused by movement of a local fault, was not strong enough to trigger a tsunami or cause widespread damage.
More than 400 aftershocks have been recorded, mostly unfelt.
Pineda appealed to the Department of Public Works and Highways to send more cranes to be utilized for the rescue operation.
A magnitude 7.7 quake killed almost 2,000 people in the northern Philippines in 1990.