Last month after some small earthquake coinciding with red sand, rocks I searched internet for red rocky areas. Such rocks are not place where population even the living any other creature populates.
I liked the photos detailing red rocky structure at China: http://www.dailymail.co.uk/news/article-2174115/Unique-rock-formations-China-look-drawn-sweeping-hand-impressionist-artist.html
http://i.dailymail.co.uk/i/pix/2012/07/16/article-2174115-1412B048000005DC-529_964x643.jpg has some blue rocks interesting. The green color not clear to me, is it also rock or some grass, no better resolution I reached.
Prior to 1999 august 17 Magnitude 7.4 sea earthquake, the sea was full of dirty dead green algs breaking from the deep of the sea where they dwell.
when I see http://www.huffingtonpost.com/2013/07/09/algae-china-miles-of-coast-photos_n_3566938.html I suspected from a different event on east china, rather in the deep sea.
Today 6.6 magnitude china earthquake occurred in Gansu. Maybe greater than 6.6 in some places where no living creatures settled.
We human are lucky that mot dangerous quakes occur on earth areas no life populates. There are not good agriculture or food for animals to survive easily in such areas.