Source model composed of asperities for the 2003 Tokachi-oki, Japan, earthquake (MJMA=8.0) estimated by the empirical Green's function method

被引：31

作者：

Kamae, K ^{[1
]}

Kawabe, H ^{[1
]}

机构：

[1] Kyoto Univ, Inst Res Reactor, Kyoto, Japan

来源：

EARTH PLANETS AND SPACE | 2004年 / 56卷 / 03期

关键词：

source model; asperity; broad-band strong ground motion; forward modeling; empirical Green's function method;

D O I：

10.1186/BF03353059

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

A preliminary source model composed of asperities for the 2003 Tokachi-oki, Japan, earthquake (M-JMA = 8.0) was estimated by the empirical Green's function method. The source parameters for three asperities located on the fault plane were determined from the comparisons of the synthesized broad-band ground motions with the observed ones. We found that the pulsive waveforms observed in north direction of the hypocenter were generated by the forward rupture directivity effect. Furthermore, the estimates of the stress parameter for asperities are higher than the averaged ones for past inland and subduction earthquakes.

引用

页码：323 / 327

页数：5