Splay fault branching along the Nankai subduction zone

被引：411

作者：

Park, JO ^{[1
]}

Tsuru, T ^{[1
]}

Kodaira, S ^{[1
]}

Cummins, PR ^{[1
]}

Kaneda, Y ^{[1
]}

机构：

[1] Japan Marine Sci & Technol Ctr, Inst Frontier Res Earth Evolut, Yokosuka, Kanagawa 2370061, Japan

来源：

SCIENCE | 2002年 / 297卷 / 5584期

关键词：

D O I：

10.1126/science.1074111

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Seismic reflection profiles reveal steeply landward dipping splay faults in the rupture area of the magnitude ( M) 8.1 Tonankai earthquake in the Nankai subduction zone. These splay faults branch upward from the plate-boundary interface ( that is, the subduction zone) at a depth of similar to10 kilometers, similar to50 to 55 kilometers landward of the trough axis, breaking through the upper crustal plate. Slip on the active splay fault may be an important mechanism that accommodates the elastic strain caused by relative plate motion.

引用

页码：1157 / 1160

页数：5

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