Resultant surface ground displacement caused by earthquake 



Vertical upLift con-iponent of tectonic surface ground movennent 



Variable water surface elevation above still water level 



Crest height of wave above still water at coastal boundary 

 (not necessarily the run-up height) 



Angle of the sea bed to the horizontal at the coastal boundary 



Wave length 



Horizontal thrust component of tectonic surface ground 

 movement 



Universal constant (3. 14159. . . ) 



Mass density of sea water 



Angular frequency of wave { - Z ir /T) 



Angle of inclination to the horizontal qf the surface slope of 

 a tsunamii surge (Fig. D-1) 



383 



