The wrinkle-like slip pulse is not important in earthquake dynamics

被引:33
作者
Andrews, DJ [1 ]
Harris, RA [1 ]
机构
[1] US Geol Survey, Menlo Pk, CA 94025 USA
关键词
D O I
10.1029/2005GL023996
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
A particular solution for slip on an interface between different elastic materials, the wrinkle-like slip pulse, propagates in only one direction with reduced normal compressive stress. More general solutions, and natural earthquakes, need not share those properties. In a 3D dynamic model with a drop in friction and heterogeneous initial stress, the wrinkle-like slip pulse is only a small part of the solution. Rupture propagation is determined primarily by the potential stress drop, not by the wrinkle-like slip pulse. A 2D calculation with much finer resolution shows that energy loss to friction might not be significantly reduced in the wrinkle-like slip pulse.
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页码:1 / 4
页数:4
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