Earthquage source fault beneath Tokyo

被引：83

作者：

Sato, H

Hirata, N

Koketsu, K

Okaya, D

Abe, S

Kobayashi, R

Matsubara, M

Iwasaki, T

Ito, T

Ikawa, T

Kawanaka, T

Kasahara, K

Harder, S

机构：

[1] Univ Tokyo, Earthquake Res Inst, Bunkyo Ku, Tokyo 1130032, Japan

[2] Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA

[3] JDI Inc, Bunkyo Ku, Tokyo 1120012, Japan

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

[5] Chiba Univ, Dept Earth Sci, Chiba 2638522, Japan

[6] Univ Texas, Dept Geol Sci, El Paso, TX 79968 USA

来源：

SCIENCE | 2005年 / 309卷 / 5733期

关键词：

D O I：

10.1126/science.1110489

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：

Devastating earthquakes occur on a megathrust fault that underlies the Tokyo, metropolitan region. We identify this fault with use of deep seismic reflection profiling to be the upper surface of the Philippine Sea plate. The depth to the top of this plate, 4 to 26 kilometers, is much shallower than previous estimates based on the distribution of seismicity. This shallower plate geometry changes the location of maximum finite slip of the 1923 Kanto earthquake and will affect estimations of strong ground motion for seismic hazards analysis within the Tokyo region.

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收藏

页码：462 / 464

页数：3

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