Tsunami Currents???

Does anyone know where the current is swelling to. In theory the Earths crust dropped between the quake and its point of impact (South East Asia) This caused all the water in the ocean to drop "like pouring water off of a curb, the water rushed towards the land and destroyed whatever was in its path" Now when the swell receeds back into the ocean depending on tide high/low the rip current will grow more powerful causing a very strong undertoe but at this magnitude the current could possibly refunnel itself to the point of origin and then cause greater swells as the current now hits a new seawall. My question is if I am understanding this theory correct where will the current shift to?

just my thoughts.....