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

Seiji Tsuboi; Dimitri Komatitsch; Chen Ji; Jeroen Tromp

doi:10.1016/j.pepi.2003.09.012

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

Seiji Tsuboi, Dimitri Komatitsch, Chen Ji, Jeroen Tromp

Research output: Contribution to journal › Article › peer-review

56 Scopus citations

Abstract

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.

Original language	English (US)
Pages (from-to)	305-313
Number of pages	9
Journal	Physics of the Earth and Planetary Interiors
Volume	139
Issue number	3-4
DOIs	https://doi.org/10.1016/j.pepi.2003.09.012
State	Published - Oct 31 2003

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Geophysics
Physics and Astronomy (miscellaneous)
Space and Planetary Science

Keywords

Broadband modeling
Denali fault
Earth Simulator
Spectral-element method

Access to Document

10.1016/j.pepi.2003.09.012

Cite this

@article{7b452a8dd0264e8ba5e3a269dbfdddb9,

title = "Broadband modeling of the 2002 Denali fault earthquake on the Earth Simulator",

abstract = "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 Mw=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.",

keywords = "Broadband modeling, Denali fault, Earth Simulator, Spectral-element method",

author = "Seiji Tsuboi and Dimitri Komatitsch and Chen Ji and Jeroen Tromp",

note = "Funding Information: All the simulations were performed at the Earth Simulator Center of JAMSTEC by S.T. We thank Brian Savage for providing software that plots seismograms on maps. Broadband seismograms used in this study were recorded by IRIS Global Seismographic Network and obtained through the IRIS Data Management Center. Three of the authors (D.K., C.J. and J.T.) were funded in part by the US National Science Foundation. S.T. was funded by Grant-in-Aid for Scientific Research (KAKENHI 13640426) from Japan Society for the Promotion of Science.",

year = "2003",

month = oct,

day = "31",

doi = "10.1016/j.pepi.2003.09.012",

language = "English (US)",

volume = "139",

pages = "305--313",

journal = "Physics of the Earth and Planetary Interiors",

issn = "0031-9201",

publisher = "Elsevier B.V.",

number = "3-4",

}

TY - JOUR

T1 - Broadband modeling of the 2002 Denali fault earthquake on the Earth Simulator

AU - Tsuboi, Seiji

AU - Komatitsch, Dimitri

AU - Ji, Chen

AU - Tromp, Jeroen

N1 - Funding Information: All the simulations were performed at the Earth Simulator Center of JAMSTEC by S.T. We thank Brian Savage for providing software that plots seismograms on maps. Broadband seismograms used in this study were recorded by IRIS Global Seismographic Network and obtained through the IRIS Data Management Center. Three of the authors (D.K., C.J. and J.T.) were funded in part by the US National Science Foundation. S.T. was funded by Grant-in-Aid for Scientific Research (KAKENHI 13640426) from Japan Society for the Promotion of Science.

PY - 2003/10/31

Y1 - 2003/10/31

N2 - 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 Mw=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.

AB - 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 Mw=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.

KW - Broadband modeling

KW - Denali fault

KW - Earth Simulator

KW - Spectral-element method

UR - http://www.scopus.com/inward/record.url?scp=0345099243&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0345099243&partnerID=8YFLogxK

U2 - 10.1016/j.pepi.2003.09.012

DO - 10.1016/j.pepi.2003.09.012

M3 - Article

AN - SCOPUS:0345099243

SN - 0031-9201

VL - 139

SP - 305

EP - 313

JO - Physics of the Earth and Planetary Interiors

JF - Physics of the Earth and Planetary Interiors

IS - 3-4

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

Keywords

Access to Document

Other files and links

Fingerprint

Cite this