【摘要】 研究了2004年12月26日及2005年3月29日印尼苏门答腊8.7和8.5级地震引起的同震地倾斜、地应变、体应变和重力波变化及衰减过程特征,给出了不同仪器进行的同类观测同震波衰减特性的差异及不同区域衰减过程相近等特性。对同震形变波衰减特性的研究有助于认识仪器工作参数、观测点附近的观测环境等对观测结果的影响及理解强地震衰减过程是有意义的。更多还原

【Abstract】 This paper has discussed the characteristics of co-seismic ground tilt,strain and gravity waves,and their attenuation.It is shown that the attenuation coefficients of co-seismic deformation waves recorded by different instruments are close in different areas.The characteristics of co-seismic deformations waves of Indonesia earthquakes give us a chance to understand the influence of instrument work parameters,relative disturbances nearby observation sites on the deformation measurement,and to study the attenuation process of deformation waves.更多还原