These are examples of spectral acceleration shakemaps obtained using the empirical attenuation relationship of Somerville et al. (1997).  Maps for 0.3, 1.0 and 3.0 seconds period are compared.  The contours show spectral acceleration in g and the red numbers show observed spectral acceleration in %g.  There is reasonable agreement between the predictions and the data.  The 1 and 3 second maps clearly show the effects of directivity.  The input required to use this attenuation relationship is slip dimension, fault strike, Mw, and site type. This information is available after the initial source processing stage described on slide 9.