Using SAR interferometry and teleseismic data to determine source parameters for the 2003 Bam earthquake

S. Jónsson; P. M. Mai; D. Small; E. Meier; J. Salichon; D. Giardini

Using SAR interferometry and teleseismic data to determine source parameters for the 2003 Bam earthquake

S. Jónsson^*, P. M. Mai, D. Small, E. Meier, J. Salichon, D. Giardini

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

Abstract

The magnitude 6.5 Bam (Iran) earthquake occurred on a near-vertical strike-slip fault beneath the city of Bam, causing more than 26500 fatalities. In this study, we use Envisat interferograms to determine the fault geometry and slip distribution of the earthquake. Our results indicate that slip occurred on a 15 km long fault and was concentrated in the uppermost 10 km of the crust. The fault slip was primarily right-lateral strike slip with maximum of ∼3 m. Modeling of tele-seismic data indicates that a secondary thrust fault, inferred by some authors, is not required by these data, as they can be explained by slip complexities on a single fault plane. Our next step in this project will be to use both InSAR and seismic data in a joint inversion to solve for spatial and temporal complexities of fault slip in the earthquake.

Original language	English (US)
Article number	475
Pages (from-to)	1263-1267
Number of pages	5
Journal	European Space Agency, (Special Publication) ESA SP
Issue number	572
State	Published - 2005
Externally published	Yes
Event	2004 Envisat and ERS Symposium - Salzburg, Austria Duration: Sep 6 2004 → Sep 10 2004

ASJC Scopus subject areas

Aerospace Engineering
Space and Planetary Science

Cite this

@article{36a3779d9a964e54b4260ecaee150aa0,

title = "Using SAR interferometry and teleseismic data to determine source parameters for the 2003 Bam earthquake",

abstract = "The magnitude 6.5 Bam (Iran) earthquake occurred on a near-vertical strike-slip fault beneath the city of Bam, causing more than 26500 fatalities. In this study, we use Envisat interferograms to determine the fault geometry and slip distribution of the earthquake. Our results indicate that slip occurred on a 15 km long fault and was concentrated in the uppermost 10 km of the crust. The fault slip was primarily right-lateral strike slip with maximum of ∼3 m. Modeling of tele-seismic data indicates that a secondary thrust fault, inferred by some authors, is not required by these data, as they can be explained by slip complexities on a single fault plane. Our next step in this project will be to use both InSAR and seismic data in a joint inversion to solve for spatial and temporal complexities of fault slip in the earthquake.",

author = "S. J{\'o}nsson and Mai, {P. M.} and D. Small and E. Meier and J. Salichon and D. Giardini",

year = "2005",

language = "English (US)",

pages = "1263--1267",

journal = "European Space Agency, (Special Publication) ESA SP",

issn = "0379-6566",

publisher = "European Space Agency",

number = "572",

note = "2004 Envisat and ERS Symposium ; Conference date: 06-09-2004 Through 10-09-2004",

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TY - JOUR

T1 - Using SAR interferometry and teleseismic data to determine source parameters for the 2003 Bam earthquake

AU - Jónsson, S.

AU - Mai, P. M.

AU - Small, D.

AU - Meier, E.

AU - Salichon, J.

AU - Giardini, D.

PY - 2005

Y1 - 2005

N2 - The magnitude 6.5 Bam (Iran) earthquake occurred on a near-vertical strike-slip fault beneath the city of Bam, causing more than 26500 fatalities. In this study, we use Envisat interferograms to determine the fault geometry and slip distribution of the earthquake. Our results indicate that slip occurred on a 15 km long fault and was concentrated in the uppermost 10 km of the crust. The fault slip was primarily right-lateral strike slip with maximum of ∼3 m. Modeling of tele-seismic data indicates that a secondary thrust fault, inferred by some authors, is not required by these data, as they can be explained by slip complexities on a single fault plane. Our next step in this project will be to use both InSAR and seismic data in a joint inversion to solve for spatial and temporal complexities of fault slip in the earthquake.

AB - The magnitude 6.5 Bam (Iran) earthquake occurred on a near-vertical strike-slip fault beneath the city of Bam, causing more than 26500 fatalities. In this study, we use Envisat interferograms to determine the fault geometry and slip distribution of the earthquake. Our results indicate that slip occurred on a 15 km long fault and was concentrated in the uppermost 10 km of the crust. The fault slip was primarily right-lateral strike slip with maximum of ∼3 m. Modeling of tele-seismic data indicates that a secondary thrust fault, inferred by some authors, is not required by these data, as they can be explained by slip complexities on a single fault plane. Our next step in this project will be to use both InSAR and seismic data in a joint inversion to solve for spatial and temporal complexities of fault slip in the earthquake.

UR - http://www.scopus.com/inward/record.url?scp=23844548252&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:23844548252

SN - 0379-6566

SP - 1263

EP - 1267

JO - European Space Agency, (Special Publication) ESA SP

JF - European Space Agency, (Special Publication) ESA SP

IS - 572

M1 - 475

T2 - 2004 Envisat and ERS Symposium

Y2 - 6 September 2004 through 10 September 2004

ER -

Using SAR interferometry and teleseismic data to determine source parameters for the 2003 Bam earthquake

Abstract

ASJC Scopus subject areas

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