catastrophe
a catastrophy
a sudden event, such as an accident or a natural catastrophe, that causes great damage or loss life.
"Cataclysm" refers to a sudden and violent event that causes widespread destruction. It is often used to describe natural disasters like earthquakes or floods but can also refer to any event that has a profound and disruptive impact on society.
Human activity, destruction of environments and human overpopulation. The relese of foreign substances into the biosphere.
A sudden irreversible cardiac arrhythmic event which causes sudden death (in both females and males). If the question is made more specific (such as regarding STDs) then a more relevant answer can be provided.
An afterclap is a sudden unexpected event or repercussion, or something which occurs after an event is supposed to have ended.
I think it's extinction. ------------------------------- More specifically an "extinction event".
sudden and unexpected or brief to the point of rudeness or steep; precipitous
catastrophe =katastrofeMeaning an event causing great and sudden suffering.
earthquake
an ice age
The eruption of a very large volcano