Research on the relationship between Earth's variable rotation and global seismic activity
Da-Wei ZHENG and Yong-Hong ZHOU (Shanghai Observatory, Chinese Academy of Sciences, Shanghai 200030, China)
Based on the time series of observational variations of the length of day (LOD) and seismic data in the world,the relations of the decadal fluctuation and seasonal variation in the Earth's rotation with global seismic activityare studied in this paper. The results suggest that there are overall correlations on temporal scale and regionaldiscrepancy on spatial scale between global seismic activity and the Earth's variable rotation, especially the seismic activity in the Eurasian seismic zone (not including southeast Asia) and the Lower California-Eastern Alaskaseismic zone correlating well with the Earth's variable rotation. According to the relations mentioned above, theobservational data of the Earth'S rotation might provide a referential basis for monitoring global seismic activity.
【CateGory Index】： P315