Empirical Arias Intensity Attenuation
Relationships For The Seismic Hazard Analysis
Of Greece
Author(s)
G.-A. Tselentis, L. Danciu & F. Gkika
Abstract
New empirical attenuation relationships of Arias Intensity for various site
conditions based on the strong-motion data recorded in Greece are presented.
With regard to attenuation relationships, for the region of Greece, there are no
Arias Intensity empirical attenuation models available today that may be used in
seismic hazard analysis. For each site class, the attenuation relationship of Arias
Intensity is expressed as a function of moment magnitude (M) and epicentral
distance (R) and it is derived using a mixed effects regression analysis method.
As a final result probabilistic seismic hazard maps in terms of Arias Intensity
have been developed for the territory of Greece.
Keywords: arias intensity, attenuation relationships, seismic hazard, Greece.
1 Introduction
Attenuation relationships are the core of seismic hazard analyses. They are
developed by statistical analyses performed on a large number of records which
were obtained in compatible seismotectonic regions. Traditionally the empirical
attenuation relationships are developed in terms of peak acceleration or spectral
acceleration and they are largely (but not entirely) data dependent. Ground
motion parameters other than the commonly used spectral and peak acceleration
can significantly affect the nonlinear response and performance of structures.
These parameters incorporate in their definition amplitude, frequency content,
and duration of the ground motion and are more adequate to describe the
destructiveness potential of an earthquake. One such parameter is the Arias
Intensity, (Arias [2]). Over the last decades several Arias Intensity empirical
attenuation relations have been presented, (Keefer and Wilson [6], Kayen and
Keywords
arias intensity, attenuation relationships, seismic hazard, Greece.
Related Book
Other papers in this volume
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