Evacuation, Spontaneous
Evacuation, Spontaneous : Residents or citizens in the threatened areas observe a hazard threat or impact or receive unofficial word of an actual or perceived threat and without receiving instructions to do so, elect to evacuate the area. Their movement, means, and direction of travel may be unorganized and unsupervised. (Adapted from FEMA State and Local Guide 101: Guide for All-Hazard Emergency Operations Planning, September 1996)