Original: The 921 earthquake (), also known as the 1999 Jiji earthquake () or simply 921 (), was a magnitude 7.6 earthquake which occurred at 1:47 local time (17:47 UTC) on September 21, 1999 in Jiji (Chichi,), Nantou County, Taiwan.
Simplified: Chi-Chi earthquake,Chi-Chi earthquake: also known as the 921 earthquake ,921 earthquake: was an earthquake in central Taiwan.