April 11 (Reuters) - A 6.0-magnitude earthquake struck the center of Mindanao island in the Philippines on Wednesday, the U.S. Geological Survey said.
The quake, which struck at 5:21 a.m. on Wednesday (2121 GMT on Tuesday), was very shallow at a depth of 6.2 miles (10 km), which would have amplified its effect.
Its epicenter was 48 miles (77.25 km) northeast of Cotabato on the island of Mindanao.
A magnitude 6.0 quake is considered relatively strong and is capable of causing severe damage. (Reporting by Sandra Maler in Washington, editing by G Crosse)