Tacloban - A strong, shallow earthquake shook the central Philippines on Thursday, leaving at least two people dead and injuring more than 100, including several in a collapsed building where others were trapped, officials said.The US Geological Survey said the quake had a magnitude of 6.5 and struck at a depth of 6.5km in the Leyte province. Filipino seismologists measured the depth at just 2km and said the quake, caused by movement of the Philippine Fault, was felt most strongly in Leyte's Kananga town.Shallow earthquakes generally cause more damage on the Earth's surface.A building collapsed in Kananga, killing one person, injuring more than 20 others and trapping at least six, said Kananga Mayor Rowena Codilla.One person was pulled out from the building alive but injured, Codilla said. She said rescuers are digging a hole in an effort to reach the six others."They're alive because they are communicating with our disaster people," she said, adding that the rescuers were moving carefully to prevent the rest of the building from tumbling down.The building had a grocery store, a hardware store and a beauty parlor on the ground floor and a guest house on the second floor, she said.The quake caused power outages in Kananga and outlying areas.Thousands of residents, office workers and students fled from homes, buildings and schools, with some falling over as the ground shook. Many refused to return home because of aftershocks.