gov.usgs.earthquake.nshmp.gmm

Class SilvaEtAl_2002

java.lang.Object

gov.usgs.earthquake.nshmp.gmm.SilvaEtAl_2002

All Implemented Interfaces:

ConvertsMag, GroundMotionModel

public class SilvaEtAl_2002
extends Object
implements GroundMotionModel, ConvertsMag

Implementation of the Silva et al. (2002) ground motion model for stable continental regions. This implementation matches that used in the 2008 USGS NSHMP and comes in two additional magnitude converting (mb to Mw) flavors to support the 2008 central and eastern US model.

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

Implementation note: Mean values are clamped per GmmUtils.ceusMeanClip(Imt, double).

Reference: Silva, W., Gregor, N., and Darragh, R., 2002, Development of hard rock attenuation relations for central and eastern North America, internal report from Pacific Engineering, November 1, 2002, http://www.pacificengineering.org/CEUS/Development of Regional Hard_ABC.pdf

Component: average horizontal (not clear from publication)

Author:

Peter Powers

See Also:

Gmm.SILVA_02, Gmm.SILVA_02_AB, Gmm.SILVA_02_J

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.
MagConverter	converter() Returns a magnitude scale converter.

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

converter

public MagConverter converter()

Description copied from interface: ConvertsMag

Returns a magnitude scale converter.

Specified by:

converter in interface ConvertsMag

Returns:

a magnitude converter