Imperial College London

DrSaradaSarma

Faculty of EngineeringDepartment of Civil and Environmental Engineering

Honorary Research Fellow
 
 
 
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Contact

 

s.sarma

 
 
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Location

 

406Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Ambraseys:2005:10.1007/s10518-005-0183-0,
author = {Ambraseys, NN and Douglas, J and Sarma, SK and Smit, PM},
doi = {10.1007/s10518-005-0183-0},
journal = {B EARTHQ ENG},
pages = {1--53},
title = {Equations for the estimation of strong ground motions from shallow crustal earthquakes using data from Europe and the Middle East: Horizontal peak ground acceleration and spectral acceleration},
url = {http://dx.doi.org/10.1007/s10518-005-0183-0},
volume = {3},
year = {2005}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - This article presents equations for the estimation of horizontal strong ground motions caused by shallow crustal earthquakes with magnitudes M, 5 and distance to the surface projection of the fault less than 100km. These equations were derived by weighted regression analysis, used to remove observed magnitude-dependent variance, on a set of 595 strong-motion records recorded in Europe and the Middle East. Coefficients are included to model the effect of local site effects and faulting mechanism on the observed ground motions. The equations include coefficients to model the observed magnitude-dependent decay rate. The main findings of this study are that: short-period ground motions from small and moderate magnitude earthquakes decay faster than the commonly assumed 1/r, the average effect of differing faulting mechanisms is not large and corresponds to factors between 0.8 (normal and odd) and 1.3 (thrust) with respect to strike-slip motions and that the average long-period amplification caused by soft soil deposits is about 2.6 over those on rock sites. Disappointingly the standard deviations associated with the derived equations are not significantly lower than those found in previous studies.
AU - Ambraseys,NN
AU - Douglas,J
AU - Sarma,SK
AU - Smit,PM
DO - 10.1007/s10518-005-0183-0
EP - 53
PY - 2005///
SN - 1570-761X
SP - 1
TI - Equations for the estimation of strong ground motions from shallow crustal earthquakes using data from Europe and the Middle East: Horizontal peak ground acceleration and spectral acceleration
T2 - B EARTHQ ENG
UR - http://dx.doi.org/10.1007/s10518-005-0183-0
VL - 3
ER -