Some insight on why Bam (Iran) was destroyed by an earthquake of relatively moderate size

Bouchon, M. and Hatzfeld, D. and Jackson, J. A. and Haghshenas, E. (2006) Some insight on why Bam (Iran) was destroyed by an earthquake of relatively moderate size. Geophysical Research Letters, 33. L09309, doi:10.1029/2006GL025906. DOI 10.1029/2006GL025906

[img] PDF
Jackson_GRL_33_2006.PDF
Restricted to Registered users only

Download (1MB)

Abstract

The Bam (Iran) earthquake of 2003 resulted in one of the worst human disaster in recent years. Yet the magnitude of the event - M w = 6.6 - was relatively moderate. We show that the remarkable recording of the ground motion produced in the city itself contains some clues which help explain this disaster. We identify three factors whose unfortunate combination led to the strong ground shaking which destroyed the city: 1) The Rayleigh-like speed of the rupture, 2) The high slip velocity, which exceeded 2m/s over a large part of the fault, 3) The strong directivity, which focused the elastic energy released directly toward the city.

Item Type: Article
Uncontrolled Keywords: 2006 AREP 2006 P IA51
Subjects: 02 - Geodynamics, Geophysics and Tectonics
Divisions: 02 - Geodynamics, Geophysics and Tectonics
Journal or Publication Title: Geophysical Research Letters
Volume: 33
Page Range: L09309, doi:10.1029/2006GL025906
Identification Number: 10.1029/2006GL025906
Depositing User: Sarah Humbert
Date Deposited: 16 Feb 2009 13:01
Last Modified: 23 Jul 2013 10:01
URI: http://eprints.esc.cam.ac.uk/id/eprint/154

Actions (login required)

View Item View Item

About cookies