The quake happened at 08:12 (00:12 GMT) on a national holiday. The US Geological Survey said it struck below the island of Bohol, where officials reported most casualties.
People were also killed in the province of Cebu.
Historic churches were among the many damaged buildings, and stampedes were reported in two cities.
At least 69 of those confirmed dead were from Bohol, according to reports citing disaster management officials.
Fifteen people are known to have been killed in Cebu, and another was reported dead on the neighbouring island of Siquijor.
Dozens of others are also being treated for injuries.
Search and rescue operations are being conducted, with rescuers finding themselves hampered by damaged roads.
At least five people died when part of a fishing port collapsed in Cebu, and two…
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