摘要翻译
的有关信息介绍如下：
The 1920 Haiyuan is earthquakes occurred in Ningxia in the history of country is of an earthquake, is caused the destruction is enormous. the nineteen eighties, scholars of Haiyuan earthquake research has made many achievements, but in the research field of data mining, and there are inadequate, the needs of the majority of scholars continue to improve and expand.