It is actually the Spanish version of the English hotspot ( "stain or hot zone") , which is used in lighting for the area highlighted with light by a reflector. In the broad sense is the region, the important issue that stands out for some fact. Also in geology it is an area with a higher temperature than the others around it; which is close to his other sense of "conflict zone."
HOT AREA Spanish name of a cyntific suspense book published by the expertist Richard Preston in 1994. Hot zone has the figurative meaning of the most dangerous place or one of the most dangerous places, such as Palestine within a global framework, or the Gaza Strip within Palestine or the border area of the wall within the Gaza framework. The size of the Hot Zone will depend on the frame of reference.