<sod >The US Geological Survey said the quake hit at a depth of 25km (16 miles) about 300km (186 miles) northwest of the city of Qamdo.< eod>< sod > The US Geological Survey said the quake hit at a depth of 32km (20ÃÂ miles), about 300km (186 miles) northwest of the city of Qamdo.< eod>