| The 17 January 1994 magnitude 6.7 Northridge earthquake
caused widespread damage throughout the San Fernando Valley. There were
also well-defined zones of significantly higher levels of building damage
in the valley, such as in Sherman Oaks and in the vicinity of the California
State Northridge campus. Previous aftershock site-response studies indicate
that areas with extensive building damage are associated with high levels
of ground motion amplification. We acquired high-resolution seismic-refraction
data on the ground surface in some of these areas to help explain the
earthquake damage patterns and the variation in ground motion. |
