A 6.8 magnitude earthquake hit the sparsely populated southeastern part of Taiwan on Sunday, according to the island's weather bureau, sparking a tsunami warning.
The U.S. Geological Survey measured the quake at a magnitude 7.2 and at a depth of 10 km.
Taiwan media said a low rise building housing a convenience store collapsed, while at least one train carriage was de-railed at a station on the east coast.
It was unclear if there were any casualties.
The U.S. Tsunami Warning Center issued a warning in Taiwan after the tremor. It said hazardous tsunami waves were possible within 300 km of the epicenter along the coast of Taiwan.
Japan's weather agency issued a warning for tsunami waves of 1 meter for part of Okinawa prefecture following the earthquake.