M A S T E R P A G E
Later that same year, a deeper trench is excavated across the same sag pond, and the following trench log is
obtained:
Figure 6, Trench Log 2, 1994
What are your conclusions regarding the pre-1830 seismic history (the paleoseismology) of this fault? (The peat
layer shows that faulting has taken place. The depth of the layers can be measured, and the distance between the
layers can be measured.)
A G U
/
F E M A
81
S
E I S M I C
S
L E U T H S
