NW 



SW TIP MONTAGUc IS 



SE 









>J». ltt\Jt^ t r^\JV>- ■-' ^ 



1 









/ 



PATTON BAY FAULT 



■ 







1 



MIDDLETON IS. '. 



~ 





COOK INLET 



J 



AXIS OF ' 



1" 1 



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ALEUTIAN TR.I 



. 



200 



"-— — ^lOQ 



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100 200km - 



L 







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6— I8-* 21— 6^ m 



V 1 



Figiire 22 Tectonic Displacement of the Free Surface, (a) Revised profile 

 (Plafker, personal communication) of observed uplift and sub- 

 sidence; (b) Computed vertical surface motion U3 for differential 

 slip Au for model indicated below profile: Horizontal fault, 

 d = 30 km, W = 230 km, L = 60O km. Arrows beneath the profile 

 represent the horizontal surface motion; (c) Superposition on 

 22b of vertical surface motion due to vertical faults, as 

 indicated on the model below the profile, (from Stauder and 

 Bollinger, I966) 



