A day after a 6.8 magnitude earthquake hit the sparsely populated southeastern part of Taiwan and killed one person and injured around 150 others, several aftershocks struck the region on Monday.
The latest quake hit around 10 am (0200 GMT), 66 kilometres (41 miles) south-southwest of the coastal city of Hualien at a depth of 13 kilometres, the United States Geological Survey (USGS) said.
Taiwan's fire department said one person had died and 146 were injured by the quake.
All four people were rescued from a building that collapsed in Yuli, while three people whose vehicles fell off a damaged bridge were rescued and taken to hospital.
The Taiwan Railways Administration said six carriages came off the rails at Dongli station in eastern Taiwan after part of the platform canopy collapsed.
More than 600 people are trapped on the scenic Chike and Liushishi mountain areas by blocked roads, though there were no injuries and rescuers were working to reopen the roads.