The fault that moved in the Northridge
earthquake did not rupture the surface, so it does not
appear on the map. However, motion along any of the
nearby faults might introduce further stress on the
blind thrust fault, and the fault may eventually cause
a break at the surface.
5. Which surface faults might be related
to the fault responsible for the Northridge earthquake?
Highlight these faults on your map. What evidence did
you use to arrive at your conclusion?
6. At what depth did the Northridge earthquake
7. At what depth range did most of the
8. Based on location of aftershocks compared
to the Northridge epicenter, in what direction is the