Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Chinese Journal of Sinica》 1977-01
Add to Favorite Get Latest Update

PRELIMINARY STUDY OF THE MICROSEISMS IN RELATION TO EARTHQUAKES

ZHU CHUAN-ZHEN FANG MING-SHAN AN ZHEN-WENLUO SHENG-LI (Institute of Geophysics, Academia Sinica)  
In order to seek for the earthquake precursors, the characteristic variations of microseisms preceding several larger earthquake occurrences are analysed in brief. It is found that amplitude of microseism decreased abnormally at a station near the epicenter (Δ≈20km) about a few days before the occurrence of the Haicheng (海城) earthquake (M=7.3) on February 4, 1975. Preliminary analysis shows also that the phenomena such as the variation of the direction of approach of microseisms and the correlation between different components of the microseisms before large earthquakes are worthy of note.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved