LHASA - A 5.5-magnitude earthquake struck Lhaze county in Xigaze city in Southwest China's Xizang autonomous region at 5:11 am Monday, with no casualties reported, according to local authorities.

The epicenter was monitored at 28.91 degrees north latitude and 87.54 degrees east longitude. The earthquake struck at a depth of 10 km, according to the China Earthquake Networks Center.

Local authorities in the county told Xinhua that the quake was strongly felt, waking some residents.

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Following the earthquake, the county promptly initiated response measures, with its townships assessing the impact. Fire and rescue teams from the county have been dispatched to the epicenter.