 |  |  | 7 Sensitivity Study of Near-Source Ground Motion with
Prescribed Ruptures |
7 Sensitivity Study of Near-Source Ground Motion with
Prescribed Ruptures
We now use two sets of prescribed rupture simulations to study the
sensitivity of the long-period near-source ground motions to
variations in the earthquake source parameters. We want to understand
the variability in the near-source ground motions for changes in the
seismic source and identify those parameters that most strongly
influence the near-source ground motions. We systematically vary the
seismic source parameters for both a strike-slip fault and a shallow
dipping thrust fault. We select different hypocenter locations,
maximum slip rates, rupture speeds, spatial distributions of the final
slip, average slips, and the depth of the top of the fault.
Additionally, we compare the ground motions from a layered half-space
with those from a homogeneous half-space.
Brad Aagaard, October 5, 2000
| | | 7 Sensitivity Study of Near-Source Ground Motion with
Prescribed Ruptures |