大地震震级速报实用化讨论
Quick report for great earthquake magnitude
中小地震震源机制
Focal Mechanism of Small and Medium Earthquakes
1976年唐山大地震
Tangshan earthquake of 1976
5．12大地震
5．12 earthquake
heavy earthquake on May 12
921集集大地震
921 Chi-Chi Earthquake
Ji-Ji (Taiwan) earthquake
大地震参数
Iarge-earthquake parameters
大地震成因
origin of large earthquakes
大地震年平均发生率
The annual average rate of earthquake recurrence