Implements GMPE developed by David M. Boore and William B. Joyner and Thomas E. Fumal (1997). “Equations for Estimating Horizontal Response Spectra and Peak Acceleration form Western North American Earthquakes: A Summary of Recent Work”. Seismological Research Letters. 68(1). 128 - 153
Coefficient table is constructed from values in Table 8 Note that for periods between 0.1 s and 0.18s the inter-event term is originally 0. As this was causing test warnings we have set this to an arbitrarily infinitesimal number
Supported intensity measure component is geometric mean
Supported intensity measure types are spectral acceleration, peak ground velocity and peak ground acceleration, see table 3 pag. 110
Supported standard deviation types are inter-event, intra-event and total
Supported tectonic region type is active shallow crust, see paragraph ‘Introduction’, page 99.
Required distance measure is Rjb.
Required rupture parameters are magnitude, and rake.
Required site parameters is Vs30.
Where the faulting mechanism need not be specified it is preferable to use this instance of the Boore et al (1997) GMPE, which omits the need for rake to be defined.
Required rupture parameters are magnitude
Returns the ground motion values for the arbitrary horizontal component, rather than the geometric mean. This version includes the corrected intra-event terms, as defined in an erratum to the original paper: Boore, DM (2005). “Erratum: Equations for Estimating Horizontal Response Spectra and Peak Acceleration from Western North American Earthquakes: A Summary of Recent Work.” Seismological Research Letters, 76(3), 368-369
Supported intensity measure component is the arbitrary horizontal