IMO
its most likely the current cyclone Narelle and uncertainty around the ports. That seems to be a good a reason as any for the sell off in the miners in NW Western Australia today.
Nothing new about cyclone up that way though and the miners are use to it.
Other then that, with all the negativity and doom and gloom constantly being spouted every day in the financial news media maybe somebody just said, "BOO" :)
