A magnitude 6.4 earthquake struck Southern Taiwan earlier today at 12:17 am, causing damage to several buildings near the epicenter. According to Taipei Times, the epicenter was some 37.9 kilometers or nearly 24 miles Southeast of Chiayi, putting it around 50 kilometers (around 31 miles) to the east of Tainan, where TSMC has at least four facilities, and some 115 kilometers (or nearly 72 miles) south of Taichung, where it has two fabs.
The epicenter was located in a sparsely populated mountainous area, thereby limiting the damage to buildings and a small number of personal injuries. Despite that, Tainan experienced it as a magnitude 5 earthquake, prompting TSMC to halt production and evacuate its workers in affected sites in Central and Southern Taiwan.
