Compound fault rupture during the 2004 off the Kii peninsula earthquake (M 7.4) inferred from highly resolved coseismic sea-surface deformation

被引：43

作者：

Baba, T

Cummins, PR

Hori, T

机构：

[1] Japan Agcy Marine Earth Sci & Technol, Inst Res Earth Evolut, Kanazawa Ku, Yokohama, Kanagawa 2360001, Japan

[2] Geosci Australia, Minerals & Geohazards Div, Canberra, ACT 2601, Australia

来源：

EARTH PLANETS AND SPACE | 2005年 / 57卷 / 03期

关键词：

the 2004 off the Kii peninsula earthquake; compound rupture; cosesimic sea-surface deformation; tsunami inversion; high-resolution;

D O I：

10.1186/BF03351810

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

For a tsunami inversion analysis, we incorporated a new technique that uses many Green's functions to improve model spatial resolution. Since this method precisely reproduces observed tsunami waveforms, we can obtain a better model of the tsunami source process. We applied the proposed method to the 2004 off the Kii Peninsula earthquake to determine what fault or faults ruptured to cause the earthquake. The estimated coseismic sea-surface deformation extended to two directions, and it was consistent with the distributions of the two aftershock swarms. Hence, we concluded that the earthquake resulted from the rupture of two faults.

引用

页码：167 / 172

页数：6

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