Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake

Richard W. Briggs; Kerry Sieh; Aron J. Meltzner; Danny Natawidjaja; John Galetzka; Bambang Suwargadi; Ya Ju Hsu; Mark Simons; Nugroho Hananto; Imam Suprihanto; Dudi Prayudi; Jean Philippe Avouac; Linette Prawirodirdjo; Yehuda Bock

doi:10.1126/science.1122602

Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake

Richard W. Briggs, Kerry Sieh, Aron J. Meltzner, Danny Natawidjaja, John Galetzka, Bambang Suwargadi, Ya Ju Hsu, Mark Simons, Nugroho Hananto, Imam Suprihanto, Dudi Prayudi, Jean Philippe Avouac, Linette Prawirodirdjo, Yehuda Bock

School of Geog & Environmental Scs

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

268 Citations (Scopus)

Abstract

Seismic rupture produced spectacular tectonic deformation above a 400-kilometer strip of the Sunda megathrust, offshore northern Sumatra, in March 2005. Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Surface deformation reflects more than 11 meters of fault slip under the islands and a pronounced lessening of slip trenchward. A saddle in megathrust slip separates the northwestern edge of the 2005 rupture from the great 2004 Sumatra-Andaman rupture. The southeastern edge abuts a predominantly aseismic section of the megathrust near the equator.

Original language	English
Pages (from-to)	1897-1901
Number of pages	5
Journal	Science
Volume	311
Issue number	5769
DOIs	https://doi.org/10.1126/science.1122602
Publication status	Published (in print/issue) - 31 Mar 2006

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10.1126/science.1122602

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title = "Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake",

abstract = "Seismic rupture produced spectacular tectonic deformation above a 400-kilometer strip of the Sunda megathrust, offshore northern Sumatra, in March 2005. Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Surface deformation reflects more than 11 meters of fault slip under the islands and a pronounced lessening of slip trenchward. A saddle in megathrust slip separates the northwestern edge of the 2005 rupture from the great 2004 Sumatra-Andaman rupture. The southeastern edge abuts a predominantly aseismic section of the megathrust near the equator.",

author = "Briggs, {Richard W.} and Kerry Sieh and Meltzner, {Aron J.} and Danny Natawidjaja and John Galetzka and Bambang Suwargadi and Hsu, {Ya Ju} and Mark Simons and Nugroho Hananto and Imam Suprihanto and Dudi Prayudi and Avouac, {Jean Philippe} and Linette Prawirodirdjo and Yehuda Bock",

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doi = "10.1126/science.1122602",

language = "English",

volume = "311",

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T1 - Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake

AU - Briggs, Richard W.

AU - Sieh, Kerry

AU - Meltzner, Aron J.

AU - Natawidjaja, Danny

AU - Galetzka, John

AU - Suwargadi, Bambang

AU - Hsu, Ya Ju

AU - Simons, Mark

AU - Hananto, Nugroho

AU - Suprihanto, Imam

AU - Prayudi, Dudi

AU - Avouac, Jean Philippe

AU - Prawirodirdjo, Linette

AU - Bock, Yehuda

PY - 2006/3/31

Y1 - 2006/3/31

N2 - Seismic rupture produced spectacular tectonic deformation above a 400-kilometer strip of the Sunda megathrust, offshore northern Sumatra, in March 2005. Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Surface deformation reflects more than 11 meters of fault slip under the islands and a pronounced lessening of slip trenchward. A saddle in megathrust slip separates the northwestern edge of the 2005 rupture from the great 2004 Sumatra-Andaman rupture. The southeastern edge abuts a predominantly aseismic section of the megathrust near the equator.

AB - Seismic rupture produced spectacular tectonic deformation above a 400-kilometer strip of the Sunda megathrust, offshore northern Sumatra, in March 2005. Measurements from coral microatolls and Global Positioning System stations reveal trench-parallel belts of uplift up to 3 meters high on the outer-arc islands above the rupture and a 1-meter-deep subsidence trough farther from the trench. Surface deformation reflects more than 11 meters of fault slip under the islands and a pronounced lessening of slip trenchward. A saddle in megathrust slip separates the northwestern edge of the 2005 rupture from the great 2004 Sumatra-Andaman rupture. The southeastern edge abuts a predominantly aseismic section of the megathrust near the equator.

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U2 - 10.1126/science.1122602

DO - 10.1126/science.1122602

M3 - Article

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SN - 0036-8075

VL - 311

SP - 1897

EP - 1901

JO - Science

JF - Science

IS - 5769

ER -

Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake

Abstract

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