Slow earthquakes coincident with episodic tremors and slow slip events

被引：372

作者：

Ito, Yoshihiro ^{[1
]}

Obara, Kazushige ^{[1
]}

Shiomi, Katsuhiko ^{[1
]}

Sekine, Shutaro ^{[1
]}

Hirose, Hitoshi ^{[1
]}

机构：

[1] Natl Res Inst Earth Sci & Disaster Prevent, Tsukuba, Ibaraki 3050006, Japan

来源：

SCIENCE | 2007年 / 315卷 / 5811期

关键词：

D O I：

10.1126/science.1134454

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：

We report on the very-low-frequency earthquakes occurring in the transition zone of the subducting plate interface along the Nankai subduction zone in southwest Japan. Seismic waves generated by very-low-frequency earthquakes with seismic moment magnitudes of 3.1 to 3.5 predominantly show a long period of about 20 seconds. The seismicity of very-low-frequency earthquakes accompanies and migrates with the activity of deep low-frequency tremors and slow slip events. The coincidence of these three phenomena improves the detection and characterization of slow earthquakes, which are thought to increase the stress on updip megathrust earthquake rupture zones.

引用

页码：503 / 506

页数：4

共 24 条

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