Tomography of the source area of the 1995 Kobe earthquake: Evidence for fluids at the hypocenter?

被引：337

作者：

Zhao, DP

Kanamori, H

Negishi, H

Wiens, D

机构：

[1] CALTECH,SEISMOL LAB 25221,PASADENA,CA 91125

[2] KYOTO UNIV,DISASTER PREVENT RES INST,UJI,KYOTO 611,JAPAN

来源：

SCIENCE | 1996年 / 274卷 / 5294期

关键词：

D O I：

10.1126/science.274.5294.1891

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 tomography revealed a low seismic velocity (-5%) and high Poisson's ratio (+6%) anomaly covering about 300 square kilometers at the hypocenter bf the 17 January 1995, magnitude 7.2, Kobe earthquake in Japan. This anomaly may be due to an overpressurized, fluid-filled, fractured rock matrix that contributed to the initiation of the Kobe earthquake.

引用

收藏

页码：1891 / 1894

页数：4

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