Source code for openquake.hazardlib.gsim.faccioli_cauzzi_2006

# -*- coding: utf-8 -*-
# vim: tabstop=4 shiftwidth=4 softtabstop=4
# Copyright (C) 2014-2018 GEM Foundation
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# under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
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Module exports :

import numpy as np

from openquake.hazardlib.gsim.base import GMPE, CoeffsTable
from openquake.hazardlib import const
from openquake.hazardlib.imt import MMI

[docs]class FaccioliCauzzi2006(GMPE): """ Implements "Macroseismic Intensities for seismic scenarios estimated from instrumentally based correlations" by E. Faccioli and C. Cauzzi First European Conference on Earthquake Engineering and Seismology Geneva, Switzerland, 3-8 September 2006 Paper Number: 569 Implemented by """ DEFINED_FOR_TECTONIC_REGION_TYPE = const.TRT.ACTIVE_SHALLOW_CRUST DEFINED_FOR_INTENSITY_MEASURE_TYPES = {MMI} DEFINED_FOR_INTENSITY_MEASURE_COMPONENT = const.IMC.HORIZONTAL DEFINED_FOR_STANDARD_DEVIATION_TYPES = {const.StdDev.TOTAL} REQUIRES_SITES_PARAMETERS = set() REQUIRES_RUPTURE_PARAMETERS = {'mag'} REQUIRES_DISTANCES = {'repi'}
[docs] def compute(self, ctx: np.recarray, imts, mean, sig, tau, phi): """ See :meth:`superclass method <.base.GroundShakingIntensityModel.compute>` for spec of input and result values. """ for m, imt in enumerate(imts): C = self.COEFFS[imt] d = np.sqrt(ctx.repi**2 + C['h']**2) term01 = C['c3'] * (np.log(d)) mean[m] = C['c1'] + C['c2'] * ctx.mag + term01 sig[m] = C['sigma']
#: Coefficient table constructed from the electronic suplements of the #: original paper - coeff in the same order as in Table 4/page 703 #: for Maw only (read last paragraph on page 701 - #: explains what Maw should be used) COEFFS = CoeffsTable(sa_damping=5., table="""\ IMT c1 c2 c3 h sigma MMI 1.0157 1.2566 -0.6547 2 0.5344 """)