gov.usgs.earthquake.nshmp.gmm

Class SadighEtAl_1997

java.lang.Object

gov.usgs.earthquake.nshmp.gmm.SadighEtAl_1997

All Implemented Interfaces:

GroundMotionModel

public class SadighEtAl_1997
extends Object
implements GroundMotionModel

Implementation of the ground motion model for shallow crustal earthquakes by Sadigh et al. (1997). This implementation supports soil and rock sites, the cutoff for which is vs30=750 m/s. This model was also used for subduction interface sources in the 2007 Alaska NSHM, for which a custom magnitude saturation at M=8.5 was added.

Note: Direct instantiation of GroundMotionModels is prohibited. Use Gmm.instance(Imt) to retrieve an instance for a desired Imt.

Reference: Sadigh, K., Chang, C.-Y. , Egan, J.A., Makdisi, F., and Youngs, R.R., 1997, Attenuation relationships for shallow crustal earthquakes based on California strong motion data: Seismological Research Letters, v. 6, n. 1, p. 180-189.

doi: 10.1785/gssrl.68.1.180

Component: geometric mean of two horizontal components

Author:

Peter Powers

Method Summary

Modifier and Type	Method and Description
ScalarGroundMotion	calc(GmmInput in) Compute the scalar ground motion and its standard deviation for the supplied arguments.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

calc

public final ScalarGroundMotion calc(GmmInput in)

Description copied from interface: GroundMotionModel

Compute the scalar ground motion and its standard deviation for the supplied arguments.

Specified by:

calc in interface GroundMotionModel

Parameters:

in - a ground motion model input argument container

Returns:

a scalar ground motion wrapper