Buildings shook in Taipei on Sunday (October 24) as a 6.5 magnitude earthquake struck northeastern Taiwan.
There were no reports of damage.
The quake had a depth of 41.5 miles, and could be felt across the northern, eastern and western parts of Taiwan, with the epicentre in Yilan county, according to the weather bureau.
The Taipei metro was briefly closed for checks, but re-opened shortly afterwards. The state-run power operator said the grid was operating as normal, while the railway administration said it was carrying out track inspections.
TSMC, the world's largest contract chipmaker, said it had evacuated some workers.
Taiwan lies near the junction of two tectonic plates and is prone to earthquakes.
More than 100 people were killed in a quake in southern Taiwan in 2016, while a 7.3 magnitude quake killed more than 2,000 people in 1999.