Major disaster
Major disaster means any hurricane, tornado, storm, flood, high-water, wind-driven water, tidal wave, tsunami, earthquake, volcanic eruption, landslide, mudslide, snowstorm, drought, fire, explosion, or other catastrophe in any part of the United States which, in the determination of the President, causes damage of sufficient severity and magnitude to warrant major disaster assistance under the Act above and beyond emergency services by the Federal Government, to supplement the efforts and available resources of the States, local governments, and disaster relief organizations, in alleviating the damage, loss, hardship, or suffering caused thereby.
Source
42 CFR § 38.2
Scoping language
All terms not defined herein shall have the same meaning as given them in the Act. As used in this part: