This image is from the front page of The Weekend Australian 5-6 February 2011. It shows the damage caused by cyclone Yasi:
It is interesting to look more closely at this image to try to understand why things have fallen. 'Bricks and mortar' seem to be more clay blocks and mortar that have an interesting extruded cavity. It looks like things may have failed or torn along the proverbial 'dotted line' - ?