This figure
shows combined data/conservative-model PGA shakemaps for Northridge using the
same station configurations in slide 6. The red circles show where predicted
values are included. In the first
case, for TriNet stations, the map is dominated by the data and is very
similar to the previous map. The 40km and very sparse station spacing maps
show considerable overall improvement with the incorporation of model
predictions in the face of deteriorating station coverage. |