Preliminary Models for PGA and 1-Sec Spectral Acceleration B. Chiou and R. Youngs (NGA Workshop, December 3, 2004)

EPRI Soil Model PGA

Peninsular Range Soil Model PGA

EPRI Soil Model Sa [T=1.0sec]

Peninsular Range Soil Model Sa [T=1.0sec]

PGA Before

PGA After

Sa [T=1.0sec] Before

Sa [T=1.0sec] After

PGA Before

Sa [T=1.0sec] Before

Sa [T=1.0sec] Style-of-Faulting Effect

Sa [T=1.0sec] Style-of-Faulting Effect

Peak Ground Acc. Hypocenter Depth Effect

Sa [T=1.0 sec] Hypocenter Depth Effect

Peak Ground Acc. Z1.5 Effect

Sa [T=1.0sec] Z1.5 Effect

Peak Ground Acc. Fault Aspect Ratio Effect

Sa [T=1.0sec] Fault Aspect Ratio Effect

Peak Ground Acc. Fault Area Effect

Sa [T=1.0sec] Fault Area Effect