References

Aoi, S., Boundary shape waveform inversion for estimating the depth of three-dimensional basin structures, Bull. Seism. Soc. Am. 92, 2410-2418, 2002.

Brocher, T. M., Empirical relations between elastic wavespeeds and density in the Earths crust, Bull. Seism. Soc. Am. 95, 2081-2092, 2005.

Dolenc, D., D. Dreger, and S. Larsen, Basin structure influences on the propagation of teleseismic waves in the Santa Clara Valley, California, Bull. Seism. Soc. Am. 95, 1120-1136, 2005.

Dolenc, D., D. Dreger, and S. Larsen, Simultaneous inversion of the teleseismic, local, and microseism observations for the velocity structure within the Santa Clara Valley basins, Seism. Res. Lett. 78, 310, 2007.

Jachens, R. C., R. F. Sikora, E. E. Brabb, C. M. Wentworth, T. M. Brocher, M. S. Marlow, and C. W. Roberts, The basement interface: San Francisco Bay area, California, 3-D seismic velocity model, Eos Trans. AGU, 78, F436, 1997.

Jachens, R., R. Simpson, R. Graymer, C.Wentworth, and T. Brocher, Three-dimensional geologic map of Northern and Central California: A basin model for supporting earthquake simulations and other predictive modeling. Seism. Res. Lett. 77, 270, 2006.

Larsen, S. and C. A. Schultz, ELAS3D: 2D/3D elastic finite-difference wave propagation code, Technical Report No. UCRL-MA-121792, 1995.

**Figure 2.21:** Results of the inversion for the $M_{w}$ =6.4 Near Coast of Central Chile event. Top two rows: The 20 s time window that was used in the inversion. Only four of the 38 stations that were used in the inversion are shown. The observed waveforms are shown for comparison (dotted). Bottom two rows: The longer time window (60 s) shows that final model also better describes the P-wave coda.
$\begin{figure}\begin{center} \epsfig{file=dolenc07_2_1.eps, width=14cm}\end{center}\end{figure}$

**Figure 2.22:** Velocities in the SCV basins for the USGS v2 model (below station 238), initial, and final model.
$\begin{figure}\begin{center} \epsfig{file=dolenc07_2_2.eps, width=14cm}\end{center}\end{figure}$