My impression was that the Aussie house sized thing crashed into the sea just off the coast.
I suppose if it was far enough off and the person's house was on a cliff or some such, the resulting wave would not have been overly devastating?
I suppose it depends more on what size it WAS vs what size it APPEARED TO BE.
It is possible that it fell into the ocean, I do not think that one article was enough to really do anything more than assume... Has there been any more information regardint the story?