This graph shows the surge generated from four natural and man-made events. The vertical axis is represented by an arrow labeled 'Impact,' with a range from 'greatest' at the top to 'least' at the bottom. The horizontal axis indicates, left to right, local, regional, and State, and Federal [governments].
According to the graph, surge from the first of the four events, Aircraft Accidents, has the least impact, and affects local and regional governments most. The event with the second least impact, Major Flooding, affects local, regional, and State governments most. The third least impact comes from Hurricanes and impacts the Federal government more than local, regional, and State governments. The most significant impact comes from Weapons of Mass Destruction, which affect the Federal government most.