org.opensha.sha.util
Class NSHMP_Util

java.lang.Object
  org.opensha.sha.util.NSHMP_Util

public class NSHMP_Util
extends Object

NSHMP Utilities. These methods are primarily used by NSHMP_2008_CA.

Version:

$Id:$

Author:

Peter Powers

Constructor Summary

NSHMP_Util()

Method Summary

static double	getAvgHW_CB(double M, double D, double P) Returns the average hanging-wall factor appropriate for CB_2008_AttenRel for a dipping point source at the supplied distance and magnitude and period of interest.
static double	getAvgHW_CY(double M, double D, double P) Returns the average hanging-wall factor appropriate for CY_2008_AttenRel for a dipping point source at the supplied distance and magnitude and period of interest.
static double	getMeanRJB(double M, double D) Returns a corrected distance value corresponding to the supplied JB distance and magnitude.

Methods inherited from class java.lang.Object

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

Constructor Detail

NSHMP_Util

public NSHMP_Util()

Method Detail

getMeanRJB

public static double getMeanRJB(double M,
                                double D)

Returns a corrected distance value corresponding to the supplied JB distance and magnitude. Magnitude is expected to be a 0.05 centered value between 6 and 7.6 (e.g [6.05, 6.15, ... 7.55]). Distance values should be <1000km. If D ≥ 1000km, method returns D.

Parameters:

M - magnitude

D - distance

Returns:

the corrected distance or D if D ??? 1000

Throws:

IllegalArgumentException - if M is not one of [6.05, 6.15, ... 8.55]

getAvgHW_CB

public static double getAvgHW_CB(double M,
                                 double D,
                                 double P)

Returns the average hanging-wall factor appropriate for CB_2008_AttenRel for a dipping point source at the supplied distance and magnitude and period of interest. Magnitude is expected to be a 0.05 centered value between 6 and 7.5 (e.g [6.05, 6.15, ... 7.45]). Distance values should be ≤200km. If distance value is >200km, method returns 0. Valid periods are those prescribed by CB_2008_AttenRel.

Parameters:

M - magnitude

D - distance

P - period

Returns:

the hanging wall factor

Throws:

IllegalArgumentException - if M is not one of [6.05, 6.15, ... 7.45]

IllegalArgumentException - if P is not one of [-2.0 (pgd), -1.0 (pgv), 0.0 (pga), 0.01, 0.02, 0.03, 0.04, 0.05, 0.075, 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 7.5, 10.0]

getAvgHW_CY

public static double getAvgHW_CY(double M,
                                 double D,
                                 double P)

Returns the average hanging-wall factor appropriate for CY_2008_AttenRel for a dipping point source at the supplied distance and magnitude and period of interest. Magnitude is expected to be a 0.05 centered value between 5 and 7.5 (e.g [5.05, 6.15, ... 7.45]). If there is no match for the supplied magnitude, method returns 0. Distance values should be ≤200km. If distance value is >200km, method returns 0. Valid periods are those prescribed by CY_2008_AttenRel (Note:PGV is currently missing).

Parameters:

M - magnitude

D - distance

P - period

Returns:

the hanging wall factor

Throws:

IllegalArgumentException - if P is not one of [0.0 (pga), 0.01, 0.02, 0.03, 0.04, 0.05, 0.075, 0.1, 0.15, 0.2, 0.25, 0.3, 0.4, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 7.5, 10.0]