; (iii) the number of applications for unemployment insurance benefits in the State for the month involved exceeds by at least 20 percent the average number of such applications for the 3 months preceding the month involved; or (iv) a major disaster exists in the State for which assistance is authorized under section 408 of the Robert T. Stafford Disaster Relief and Emergency Assistance Act for individuals who live in an area of the State. (B) Economic trigger month The term economic trigger month means a trigger month described in clause (i), (ii), or (iii) of subparagraph (A). (C) Natural disaster trigger month The term natural disaster trigger month means a trigger month described in clause (iv) of subparagraph (A). (3) Emergency assistance area The term emergency assistance area means, with respect to a State and a month that is a family assistance month for the State— (A) if the month is a family assistance month on the basis of an economic trigger month, the entire State