Is the Amazon rainforest resistant to fires? Comparing the picture from Wikipedia that delimits the Amazon rainforest and the picture of the recent dramatic fires in the area that NASA published, what I can gather is that the burned zone is the periphery of the forest and not the forest itself.


Source: Wikipedia


Recent fires on South America, NASA

As much of South America is on fire, I wonder if the absence of fires in the Amazon is related to its resistance to fires due to its being too wet, as suggested in this question, or due to other reasons as absence of human activity on the truly wild parts of the Amazon.
Most fires are probably in the periphery because they are started by humans. 

They encroach on the jungle from the outside, where they already live, and there are roads instead of impenetrable jungle.