Confined patients at the Miranda Family Hospital in Surigao City opt to stay out in the open field, afraid that the building would collapse.
The natural disaster occurred on Friday, at 14:03 GMT, in the province of Surigao del Norte.
The officials said that nearly 100 aftershocks have been felt after the huge quake.
The city's airport was temporarily closed due to deep cracks in the runway, aviation officials said.
The natural disaster victims were brought to Caraga Regional Hospital. "At the slightest shaking, they run out in the streets", he said.
Matugas sought national assistance for the fix of damaged infrastructures-destroying the airport runway, provincial capitol, bridges and buildings, including hospitals, hotels and schools which are threatening safety and affecting the flow of goods to affected areas.
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Solidum said the quake was set off by movement in a segment of the Philippine fault, which sits in the Pacific "Ring of Fire" where quakes and volcanoes are common.
He also said that authorities recorded 89 aftershocks and more are expected.
The quake, which hit the southern region of Philippines damaged buildings and an airport and knocked out power in vast areas, officials on Saturday said, according to Associated Press reports.
The Philippine Institute of Volcanology and Seismology (Phivolcs) said the tremor hit at a depth of 2.5 miles (4 kilometers) and registered a magnitude of 6.7 on the Richter scale, according to the United States Geological Survey.
She cited that PAL Express and Cebu Pacific operate daily flights to Surigao Airport from Manila.
Capt. Joe Patrick Martinez, 4th Infantry Division spokesman, said the quake also wrecked the bridge in Barangay Anao-aon in San Francisco, Surigao del Norte.