Toro et al. 2003¶

class
openquake.hazardlib.gsim.toro_2002.
ToroEtAl2002
[source]¶ Implements GMPE developed by G. R. Toro, N. A. Abrahamson, J. F. Sneider and published in “Model of Strong Ground Motions from Earthquakes in Central and Eastern North America: Best Estimates and Uncertainties” (Seismological Research Letters, Volume 68, Number 1, 1997) and “Modification of the Toro et al. 1997 Attenuation Equations for Large Magnitudes and Short Distances” (available at: http://www.riskeng.com/downloads/attenuation_equations) The class implements equations for Midcontinent, based on moment magnitude. SA at 3 and 4 s (not supported by the original equations) have been added in the context of the SHARE project and they are obtained from SA at 2 s scaled by specific factors for 3 and 4 s.

COEFFS
= <openquake.hazardlib.gsim.base.CoeffsTable object>¶ Coefficient tables obtained by joining tables 2, 3, and 4, pages 47, 50, 51.

DEFINED_FOR_INTENSITY_MEASURE_COMPONENT
= 'Average horizontal'¶ Supported intensity measure component is the geometric mean of attr:~openquake.hazardlib.const.IMC.AVERAGE_HORIZONTAL,

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, see table 2 page 47.

DEFINED_FOR_STANDARD_DEVIATION_TYPES
= set(['Total'])¶ Supported standard deviation type is only total.

DEFINED_FOR_TECTONIC_REGION_TYPE
= 'Stable Shallow Crust'¶ Supported tectonic region type is stable continental crust, given that the equations have been derived for central and eastern north America

REQUIRES_DISTANCES
= set(['rjb'])¶ Required distance measure is rjb, see equation 4, page 46.

REQUIRES_RUPTURE_PARAMETERS
= set(['mag'])¶ Required rupture parameter is only magnitude.

REQUIRES_SITES_PARAMETERS
= set([])¶ No site parameters required

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.toro_2002.
ToroEtAl2002SHARE
[source]¶ 
COEFFS_FS_ROCK
= <openquake.hazardlib.gsim.base.CoeffsTable object>¶ Coefficients for faulting style and rock adjustment

CONSTS_FS
= {'pR': 0.81, 'Fnss': 0.95, 'pN': 0.01}¶ Constants for faulting style adjustment

REQUIRES_RUPTURE_PARAMETERS
= set(['rake', 'mag'])¶ Required rupture parameters are magnitude and rake

get_mean_and_stddevs
(sites, rup, dists, imt, stddev_types)[source]¶ See
superclass method
for spec of input and result values.
