If You Find a Well-Exposed Fault That Moved Before Seismographs

Multiple Choice

If you find a well-exposed fault that moved before seismographs were available,you can infer the approximate magnitude of earthquake by measuring the:

A) largest size tree snapped off by the shaking.
B) average size of the largest rocks moved in the earthquake.
C) strength of the rocks that the earthquake managed to break.
D) total area affected by the tsunami wave produced by the event.
E) total length of fault break during the event.