More than 14,000 rescue workers have arrived in Tibet to continue the search for survivors after a strong earthquake killed at least 126 people in a remote part of western China.

More than 400 people trapped by rubble in earthquake-stricken Tibet have been rescued, Chinese officials said, with an unknown number still unaccounted for in freezing weather a day after a strong tremor rocked the Himalayan foothills.

More than 120 people have been killed after a powerful earthquake struck a remote region of Tibet on Tuesday morning, with tremors felt across the Himalayas in neighboring Nepal, Bhutan and parts of northern India.

Chinese state media said at least 126 people had died in the magnitude 7.1 quake near an area of religious significance in Tibet. It was felt in neighboring Nepal.

At least 95 people have died and "many buildings" have collapsed, following the quake in the magnitude 7 range, according to reports