Taiwan is located on the Pacific Ring of Fire, at the intersection of the Eurasian Plate and the Philippine Plate, making it one of the most seismically active regions globally. According to the Central Weather Administration, Taiwan experiences over 1,000 earthquakes annually, with approximately 100 being perceptible and 5-10 measuring magnitude 5 or above.
Taiwan's most significant earthquake was the 1999 Chi-Chi earthquake (Magnitude 7.3), which killed over 2,000 people and injured 10,000, making it the most destructive natural disaster in modern Taiwanese history. The energy released was equivalent to 630 times the Hiroshima atomic bomb.
Major fault lines in Taiwan include the Sanyi, Hsinchu, Chaochou, and Chiayi fault zones. The eastern region, due to its position at the Eurasian-Philippine plate boundary, faces particularly high seismic risk. Experts estimate a 20-30% probability of magnitude 7.0+ earthquakes within 30 years.
Taiwan operates an advanced earthquake monitoring network with over 700 seismometers, enabling real-time earthquake detection and early warning. Taiwan's earthquake early warning system is among the world's most advanced.