I think, Tsunami.
Death toll means the number dead as a result of war, natural disaster or other incident.
There is not a specific " Class A" naltural disaster. Natural Disasters are classified by death toll, property damages, etc.
The Yellow River Flood 1931China Death toll: 1 - 4 million.
alackbar
Four people lost their lives in the fires.
1943
Appotomax, MD
Appotomax, MD
Germany
Motorcycle
Hurricane Harvey, the costliest hurricane as of today
motorcycles