A 6.4 magnitude earthquake struck southern Taiwan early Tuesday, forcing Taiwan Semiconductor Manufacturing Co. to evacuate facilities in a region critical to global chip supply, marking the second significant seismic event to impact semiconductor operations in recent months.

Taiwan experienced a 6.4 magnitude earthquake on Tuesday. The quake struck near the city of Chiayi in Taiwan’s south, according to Reuters, and it shook buildings in Taipei. TSMC said it evacuated personnel from some buildings and the science park in Tainan,

A 6.4-magnitude earthquake struck a mountainous, rural area of Taiwan’s south on Jan 21, the island’s weather administration said, injuring 27 people and causing ceilings of homes to cave in according to the local authorities. The quake had a depth of 9.4km with its epicentre in Dapu township in Chiayi county, the weather administration said.