||Light damage. Some damage to chimneys;
branches broken off trees; shallow-rooted
trees pushed over; sign boards damaged.
||Moderate damage. Peels surface off roofs;
mobile homes pushed off foundations or
overturned; moving autos blown off roads.
||Considerable damage. Roofs torn off frame
houses; mobile homes demolished; boxcars
overturned; large trees snapped or uprooted;
light-object missiles generated; cars lifted off
||Severe damage. Roofs and some walls torn
off well-constructed houses; trains overturned;
most trees in forest uprooted; heavy cars lifted
off the ground and thrown.
||Devastating damage. Well-constructed
houses leveled; structures with weak
foundations blown away some distance; cars
thrown and large missiles generated.