Broadband modeling of the 2002 Denali fault earthquake on the Earth Simulator

被引：46

作者：

Tsuboi, S

Komatitsch, D

Ji, C

Tromp, J

机构：

[1] Japan Marine Sci & Technol Ctr, Inst Frontier Res Earth Evolut, Kanazawa Ku, Yokohama, Kanagawa 2360001, Japan

[2] CALTECH, Seismol Lab, Pasadena, CA 91125 USA

来源：

PHYSICS OF THE EARTH AND PLANETARY INTERIORS | 2003年 / 139卷 / 3-4期

基金：

美国国家科学基金会; 日本学术振兴会;

关键词：

broadband modeling; Denali fault; earth simulator; spectral-element method;

D O I：

10.1016/j.pepi.2003.09.012

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

We use a spectral-element method implemented on the Earth Simulator in Japan to simulate broadband seismic waves generated by the 3 November 2002 Denali fault earthquake. This M-w = 7.9 event is the largest strike-slip earthquake in North America in almost 150 years. The source model is constrained by teleseismic body waves and observed surface offsets. The earthquake was initiated by a small thrust event, and is well characterized by a five-segment fault geometry dominated by right-lateral rupture along 220 km of the Denali fault. We perform the three-dimensional numerical simulations at unprecedented resolution and reveal significantly enhanced ground motions (directivity) toward the conterminous United States for both body and surface waves. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：305 / 312

页数：8

共 19 条

[1]

Bassin C, 2000, EOS T AGU, V81, pF897, DOI DOI 10.1002/EOST.V81.10

[2]

CHALJUB E, 2000, THESIS U PARIS 7 D D

[3]

Dahlen F. A., 1998, Theoretical global seismology

[4] PRELIMINARY REFERENCE EARTH MODEL [J].

DZIEWONSKI, AM ;

ANDERSON, DL .

PHYSICS OF THE EARTH AND PLANETARY INTERIORS, 1981, 25 (04) :297-356

[5] The 2002 Denali fault earthquake, Alaska:: A large magnitude, slip-partitioned event [J].

Eberhart-Phillips, D ;

Haeussler, PJ ;

Freymueller, JT ;

Frankel, AD ;

Rubin, CM ;

Craw, P ;

Ratchkovski, NA ;

Anderson, G ;

Carver, GA ;

Crone, AJ ;

Dawson, TE ;

Fletcher, H ;

Hansen, R ;

Harp, EL ;

Harris, RA ;

Hill, DP ;

Hreinsdóttir, S ;

Jibson, RW ;

Jones, LM ;

Kayen, R ;

Keefer, DK ;

Larsen, CF ;

Moran, SC ;

Personius, SF ;

Plafker, G ;

Sherrod, B ;

Sieh, K ;

Sitar, N ;

Wallace, WK .

SCIENCE, 2003, 300 (5622) :1113-1118

[6]

Engdahl ER, 1998, B SEISMOL SOC AM, V88, P722

[7]

Gropp W. D., 1994, Using MPI-Portable Parallel Programming with the Message -Parsing Interface

[8] Source description of the 1999 Hector Mine, California, earthquake, part I: Wavelet domain inversion theory and resolution analysis [J].

Ji, C ;

Wald, DJ ;

Helmberger, DV .

BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, 2002, 92 (04) :1192-1207

[9]

JI C, 2002, EOS T AGU, V83

[10]

KIKUCHI M, 2002, SOURCE RUPTURE PROCE

← 1 2 →