Plate tearing in the northwestern corner of the subducting Philippine Sea Plate

被引：9

作者：

Lin, Jing-Yi ^{[1
]}

Hsu, Shu-Kun ^{[1
]}

Sibuet, Jean-Claude ^{[1
]}

Lee, Chao-Shing ^{[2
]}

Liang, Chin-Wei ^{[2
]}

机构：

[1] Natl Cent Univ, Inst Geophys, Jhongli 32001, Taoyuan County, Taiwan

[2] Natl Taiwan Ocean Univ, Inst Appl Geophys, Keelung 202, Taiwan

来源：

JOURNAL OF ASIAN EARTH SCIENCES | 2013年 / 70-71卷

关键词：

Ryukyu subduction zone; Left lateral strike-slip fault; Seismicity; Philippine Sea Plate; RYUKYU SUBDUCTION; OBLIQUE SUBDUCTION; TAIWAN REGION; ARC; TRANSITION; COLLISION; INSIGHTS; EARTHQUAKES; EXTENSION; INVERSION;

D O I：

10.1016/j.jseaes.2013.02.019

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

The Philippine Sea Plate (PHS) simultaneously subducts northwestward and collides eastward with the Eurasian Plate (EU) in northeast Taiwan. These two tectonic events induce high seismic activity, which makes northeastern Taiwan one of the most seismically active zones in the world. To understand the mechanical processes at work, we used existing geophysical data and the aftershocks recorded following a recent large strike-slip event occurring within the PHS oceanic crust. During this event, a NW-SE trending left-lateral sub-parallel to the PHS/EU convergence vector was active. As a consequence of the collision/subduction plate geometry, we show that the lithosphere of the northwestern corner of the PHS has been torn in a NW-SE orientation. This tectonic feature is associated with an abrupt tectonic stress boundary and could generate large intra-plate earthquakes. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1 / 7

页数：7

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