i_2014_nga: The GMPE of CB 2014

In wltcwpf/GMPE: A pacakge of commonly used Ground Motion Prediction Equations (GMPE)

The GMPE of CB 2014

Description

This function calculates the ground motion median values and standard deviations

Usage

i_2014_nga(M, Vs30, T = 1000, Rrup, Fault_Type)

Arguments

M	Moment magnitude, a numeric value
Vs30	Shear wave velocity averaged over top 30 m (in m/s).
T	Period (sec); Use 1000 (by default) for output the array of Sa with original NGA West2 periods. Note no PGV computation
Rrup	Closest distance (km) to the ruptured plane
Fault_Type	The indicator of fault type: 0 for strike slip & other non-reverse faulting; 1 for reverse

Value

A list of five elements is returned: med - median spectral acceleration prediction (in g); sigma - logarithmic standard deviation of spectral acceleration prediction; phi - logarithmic standard deviation of within event residuals; tau - logarithmic standard deviation of between event residuals; period - the corresponding oscillator periods

References

Idriss, I. M. (2014). An NGA-West2 Empirical Model for Estimating the Horizontal Spectral Values Generated by Shallow Crustal Earthquakes. Earthquake Spectra, 30(3), 1155-1177.

Examples

i_2014_nga(M = 5.5, Vs30 = 550, T = 1000, Rrup = 90, Fault_Type = 1)

wltcwpf/GMPE documentation built on July 27, 2024, 4:28 p.m.