Hi Shan,

Can you provide some additional information regarding the year 2001 earthquake you mentioned? It sounds like the date you have listed for it is January 15. But the closest destructive earthquake in China that I have been able to find in my records for around that time is the following one:

2001/02/23 00:09:23 29.52N 101.13E 33.0 5.6M A SICHUAN, CHINA
(NEIS data)