Chiou and Youngs 2014

class openquake.hazardlib.gsim.chiou_youngs_2014.ChiouYoungs2014[source]

Implements GMPE developed by Brian S.-J. Chiou and Robert R. Youngs and published as “Updated of the Chiou and Youngs NGA Model for the Average Horizontal Component of Peak Ground Motion and Response Spectra” (2014, Earthquake Spectra).

COEFFS = <openquake.hazardlib.gsim.base.CoeffsTable object>

Coefficient tables are constructed from values in tables 1 - 5


Supported intensity measure component is orientation-independent measure RotD50,

DEFINED_FOR_INTENSITY_MEASURE_TYPES = set([<class 'openquake.hazardlib.imt.PGA'>, <class 'openquake.hazardlib.imt.SA'>, <class 'openquake.hazardlib.imt.PGV'>])

Supported intensity measure types are spectral acceleration, peak ground velocity and peak ground acceleration

DEFINED_FOR_STANDARD_DEVIATION_TYPES = set(['Total', 'Inter event', 'Intra event'])

Supported standard deviation types are inter-event, intra-event and total, see chapter “Variance model”.


Supported tectonic region type is active shallow crust

REQUIRES_DISTANCES = set(['rx', 'rjb', 'rrup'])

Required distance measures are RRup, Rjb and Rx.

REQUIRES_RUPTURE_PARAMETERS = set(['rake', 'dip', 'ztor', 'mag'])

Required rupture parameters are magnitude, rake, dip and ztor.

REQUIRES_SITES_PARAMETERS = set(['vs30measured', 'z1pt0', 'vs30'])

Required site parameters are Vs30, Vs30 measured flag and Z1.0.

get_mean_and_stddevs(sites, rup, dists, imt, stddev_types)[source]

See superclass method for spec of input and result values.

class openquake.hazardlib.gsim.chiou_youngs_2014.ChiouYoungs2014PEER[source]

This implements the Chiou & Youngs (2014) GMPE for use with the PEER tests. In this version the total standard deviation is fixed at 0.65

DEFINED_FOR_INTENSITY_MEASURE_TYPES = set([<class 'openquake.hazardlib.imt.PGA'>])

The PEER tests requires only PGA


Only the total standars deviation is defined