From: Slip model of the 2008 Mw 7.9 Wenchuan (China) earthquake derived from co-seismic GPS data
Layer
Thickness (km)
V p (km/s)
V s (km/s)
Density (kg/m3)
1
1.5
2.5
1.2
2100
2
6.5
4.5
2.6
2500
3
9
6.2
3.6
2800
4
12
6.4
3.9
2850
5
∞
6.8
3.8
2950