Seafloor displacement at Kumano-nada caused by the 2004 off Kii Peninsula earthquakes, detected through repeated GPS/Acoustic surveys

被引：68

作者：

Kido, Motoyuki ^{[1
]}

Fujimoto, Hiromi

Miura, Satoshi

Osada, Yukihito

Tsuka, Kentaro

Tabei, Takao

机构：

[1] Tohoku Univ, Grad Sch Sci, RCPEV, Aoba Ku, Sendai, Miyagi 9808578, Japan

[2] Kochi Univ, Kochi 7808520, Japan

来源：

EARTH PLANETS AND SPACE | 2006年 / 58卷 / 07期

关键词：

GPS/Acoustic measurement; seafloor displacement; Kumano-nada; 2004 off Kii Peninsula earthquake;

D O I：

10.1186/BF03351996

中图分类号：

P [天文学、地球科学];

学科分类号：

07 ;

摘要：

In 2004, we started monitoring crustal deformation at Kumano-nada in the Nankai trough using the GPS/Acoustic technique. We observed a large southward sealloor displacement of similar to 30 cm associated with the off Kii Peninsula earthquake, which occurred in September 2004, between our two survey campaigns in August and November 2004. The observed seafloor displacement is larger than that predicted from a slip model derived solely from GPS measurements on land. This may indicate the earthquake fault is slightly shallower and extends move to the NW than previously estimated.

引用

页码：911 / 915

页数：5

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