eastland disaster
Chernobyl
Because Hurricane Katrina killed many many lives and was the costliest Hurricane in the us history.
the black plaque
As the worst disaster in their military history; which in actuality it may have been their first military disaster in Japanese history.
cyclones are the most worst natural disaster
They are considered some of the worst man-made environmental disasters in U.S. history.
what was the worst volcano disaster in the 20th century
Since you have used the word "disaster" meaning widespread destruction and distress, I would have to say the terrorist attacks on 9/11 to the World Trade Center would be considered the worst aviation disaster that led to about 2,800 deaths. The worst aviation accident, would be the Tenerife disaster was the worst to 747's ran into each other 03/27/77 there were 583 fatalities.
The worst aircraft accident in history was definitely, in my opinion, the Tenerife airport disaster. It was very morbid what with all the deaths. Want more info? Go to wikipedia and search it.
The Cyclone Mahira in 1899 was the worst natural disaster in Australia.
No. The worst hurricane in Texas history was the unnamed hurricane that hit Galveston in 1900. The storm killed at least 8,000 people, possibly as many as 12,000 making it the deadliest natural disaster in U.S. history.
Chernobyl is famous for the worst nuclear power plant accident in history.