Here are three images of what I am talking about:
[www.google.com] This is an overview of the area in question. Note the "tail" extending out to sea. My claim of a riptide debris field.
[www.google.com] this image shows what may be controversially the runnel I claim the retreating tsunami flood waters created when they returned to the sea. You can see this runnel on any beach that has wave action washing the shoreline. This one is on scale with the tsunami.
[www.google.com] Here you will see the riffles created as the tsunami receded to the sea leaving one thousand foot high riffles. You can see here also the lay of the land that would have created the "funneling" effect that would account for the massive riptide.
Also, in the news today I read that Lake Poopo dried up. This was one of the many saline lakes that formed from this massive wave that struck the interior. It has dried up in the past and has always been a very shallow lake fed by a non-sustaining flow and add to that the intrusion of the mining above the lake on the flow into the lake. Eventually, it would dry up to it's original form of a shallow depression that trapped sea water from the flooding.
I'd like to also throw into the mix the area surrounding Pukara Grande located in this image, just south of Oruro where immense flood waters were fabled to have occurred. [www.google.com] Dave Truman talks about this mysterious area with structures and tunneling existing. His photos speak for themselves. I believe these "floods" from the interior they speak of in oral history in the area, is the sea waters rushing back to the sea.
I'm concentrating now on the Easter Island Epoch to try and tie it's culture to the Tiwanaku culture. Then we will have a story to tell.