沂沭活断层分段特征及地震趋势的预测

沂沭活断层以莒南—汤头一线为界可分成南北两大段。其中,北段以蠕滑为主,南段则表现为强烈的粘滑错动。另外,在南段内还存在着一个次一级的段落。文中详细分析了各段的断层滑动方式及地震活动的特点,并对沂沭断裂带今后的地震趋势作了预测。

SEGMENTATION CHARACTERISTICS OF YISHU ACTIVE FAULTS AND SEISMIC TENDENCY PREDICTION

Taking Junan-Tangtou line as a boundary, the Yishu active faults can be divided into two sections. The northern section is dominated with creeping movement while the southern one is dominated with stick-sliping. Besides, there exist secondary segments in the southern sec-tion. By means of analysing the faulting creeping pattern and the characteristics of seismic activity for each segment, author proposed the seismic tendency prediction of Yishu faultzone.