Date 01:47:12 am, September 21, 1999
Magnitude 7.6-7.7 Mw / 7.3 Ms
Depth 8.0 km (5.0 mi)
Epicenter 23.772°N 120.982°E
Jiji, Nantou, Taiwan.
Countries or regions Republic of China (Taiwan)
Casualties 2,415 killed
29 missing
11,305 injured
51,711 buildings destroyed
53,768 buildings damaged
The 921 earthquake (Chinese: 九二一大地震; pinyin: Jiǔ'èryī dà dìzhèn), also known as Jiji earthquake (Chinese: 集集大地震; pinyin: JÃjà dà dìzhèn), was a 7.3 Ms or 7.6-7.7 Mw earthquake which occurred at 01:47:12.6 TST on Tuesday, 21 September 1999 (17:47:12.6 UTC on Monday, 20 September 1999) in Jiji (Chichi, 集集

, Nantou County, Taiwan. 2,415 people were killed, 11,305 injured, and NT$300 billion (US$10 billion) worth of damage was done. It was the second-deadliest quake in recorded history in Taiwan, after the 1935 Hsinchu-Taichung earthquake.
Rescue groups from around the world joined local relief workers and the ROC military in digging out survivors, clearing rubble, restoring essential services and distributing food and other aid to the more than 100,000 people made homeless by the quake. The disaster, dubbed the "Quake of the Century" by local media, had a profound effect on the economy of the island and the consciousness of the people, and dissatisfaction with government's performance in reacting to it was said by some commentators[who?] to be a factor in the unseating of the ruling Kuomintang party in the 2000 Presidential Election.