DISPLACEMENT MODELS FOR STRIKE-SLIP FAULTS

David Sandwell, July 22, 2011

All models created using SIC
http://igppweb.ucsd.edu/~fialko/software.html

1) elastic parameters
shear modulus 30 GPA
poisson ratio 0.25

2) region
X -100 km to 100 km
Y -100 km to 100 km
V -20 to 20
cell size 1 km by 1 km

D=[-100,100,-100,100,-20,20];

3) fault depth = 20 km

4) CASE 1 - infinitely long fault - actually +/- 400 km
   dip angles 90  75    60    45
   width      20 20.70 23.09 28.28
   output:
   V_90_inf.grd
   V_75_inf.grd
   V_60_inf.grd
   V_45_inf.grd

5) CASE 2 - 20 km long fault
   dip angles 90  75    60    45
   width      20 20.70 23.09 28.28
   output:
   U,V,W_90_20km.grd
   U,V,W_75_20km.grd
   U,V,W_60_20km.grd
   U,V,W_45_20km.grd