详细信息   

• 责任者：Zhang Xiaoliang (Institute of Crustal Dynamic ; China Earthquake Administration ; Beijing 100085 ; China) ; Xie Furen
• 刊名：Acta Seismologica Sinica
• 出版年：2010
• 卷期：32(1)
• 关键词：全球定位系统 ; Global Positioning System ; 地震周期性 ; earthquake periodicity ; 四川 ; Sichuan Province ; 云南 ; Yunnan Province
• 页码：p.23-32
• 图表：4 illus., 34 refs.
• 分类号：0500
• issnNo：ISSN0253-3782
• isbnNo：CN11-2021/P

摘要

Times New Roman">With a combination of the Kriging interpolation and shape function’s derivative used in finite element analysis, the authors have derived the elastic strain rate field in southern Sichuan-Yunnan region, China, based on the regional GPS velocity observations. Furthermore, the derived strain rate is directly converted into the seismic moment rate according to the Kostrov’s moment rate formula. By means of the Ward’s recurrence interval formula the recurrence intervals of M_S≥6.5 earthquakes in southern Sichuan-Yunnan region are obtained numerically. The result shows that the contours of earthquake recurrence intervals generally coincide with the major fault zones.