Powerful earthquake rocks Indonesian island

A powerful earthquake has rocked central Sulawesi in Indonesia and authorities have issued a tsunami warning.

The US Geological Survey said the magnitude 7.5 quake was centered at a depth of 6 miles (10 kilometers) about 35 miles (56 kilometers) northeast of the town of Donggala.

Earlier Friday, the same area was hit by a magnitude 6.1 earthquake that killed one person, injured 10 and damaged dozens of houses.