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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