MANILA, Feb. 11 (Xinhua) -- At least four people have been killed and more than 100 others injured in a powerful earthquake that hit a southern Philippine city on Mindanao island, media reports said on Saturday.

The Philippine Institute of Volcanology and Seismology said in its revised report the magnitude-6.7 quake struck 10:03 p.m. Friday 14 km northwest of Surigao City in Surigao del Norte province.

Radio DzBB reported that several houses and buildings, including hotels, and roads were reportedly destroyed. The airport was also damaged, according to the reports.

The government disaster agency has yet to issue an official report on the quake.

Tremors were felt in neighboring provinces such as southern Leyte, Mandate City, Butuan City, Tacloban and Cebu City, in the central Philippines.

The institute has recorded at least 32 aftershocks after Friday's quake.

The U.S. Geological Survey said the quake, measuring 6.5 on the Richter scale, struck at a depth of 27 km.

Some residents posted status on Facebook saying they experienced power outages in the city. A Surigao-based television station posted pictures of a two-storey house with collapsed walls and a car with a fallen debris on top.

"Jesus Christ! That was a strong quake," posted another male resident of the city named Ilmen Ronzkie. He also posted pictures showing chaos of kitchen utensils such as plates, bowls, cups and saucers and the like that fell on the floor.