Implements GMPE developed by Idriss 2014 and published as “An NGA-West2 Empirical Model for Estimating the Horizontal Spectral Values Generated by Shallow Crustal Earthquakes. (2014, Earthquake Spectra, Volume 30, No. 3, pages 1155 - 1177).
Idriss (2014) defines the GMPE only for the case in which Vs30 >= 450 m/s. In the present implementation no check is made for the use of this model for sites with Vs30 < 450 m/s
DEFINED_FOR_INTENSITY_MEASURE_COMPONENT= 'Average Horizontal (RotD50)'¶
Supported intensity measure component is orientation-independent measure
DEFINED_FOR_INTENSITY_MEASURE_TYPES= set([<class 'openquake.hazardlib.imt.SA'>, <class 'openquake.hazardlib.imt.PGA'>])¶
Supported intensity measure types are spectral acceleration, and peak ground acceleration
Supported standard deviation types are total
DEFINED_FOR_TECTONIC_REGION_TYPE= 'Active Shallow Crust'¶
Supported tectonic region type is active shallow crust
Required distance measure is Rrup
REQUIRES_RUPTURE_PARAMETERS= set(['rake', 'mag'])¶
Required rupture parameters are magnitude, and rake.
Required site parameters is Vs30