Electronic Supplement to
Rupture Directivity of the 18 April 2008 Mt. Carmel, Illinois, Earthquake from Modeling of Local Seismic Waveforms
by Xiaohui He, Zhongwen Zhan, Peizhen Zhang, and Dongli Zhang
Table S1. The Central U.S. (CUS) Velocity Model (Herrmann, 1979)
| Layer Number |
VP (km/s) |
VS (km/s) |
Thickness (km) |
| 1 |
5.00 |
2.89 |
1.0 |
| 2 |
6.10 |
3.52 |
9.0 |
| 3 |
6.40 |
3.70 |
10.0 |
| 4 |
6.70 |
3.87 |
20.0 |
| 5 |
8.15 |
4.70 |
— |
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