He might be right. It seems to be pretty bad.
Gotta to the “Tri-State Tornado” killed 695 people and injured 2,027, traveling more than 300 miles through Missouri, Illinois and Indiana on March 18, 1925. It was rated an F5 at the top of the old Fujita scale (with winds of 260-plus mph).
The Tri-State tornado, March 1925 was massive:
http://www.popularmechanics.com/science/environment/natural-disasters/4219866
Depends on how you measure these things ~ bodies, dollars, square miles of devastation, what?
Modern history maybe, but.. History of planet? Hayyull Nah!