It depends on who you ask. Some scientists believe that is is just a matter of time until Earth is hit by a meteor large enough to end 95% of life on the planet. It has happened before and they say it's a certainty that it will happen again.
The Bible speaks not of one single event but a series of catastrophic events that will lead to the return of Christ and a destruction of this world that we now live. So you need to figure out what you believe and hang on like the rest of us.
There was no reason for the world to end. There was no catalyst. The world will not end without some catastrophic natural event big enough to end it.
the search and destroy missions
Rome burned in 64 AD during the reign of Emperor Nero. The consequences of this catastrophic event included widespread destruction of buildings, loss of life, and economic hardship for the city. The fire also led to rumors that Nero himself had started the fire, which damaged his reputation and led to increased persecution of Christians in Rome.
A cobalt bomb could destroy an entire country.
Nope.
A global catastrophic wildfire event, such as a widespread and uncontrollable series of wildfires, could potentially result in one-third of the world burning.
There were predictions that the world would end in 2012, based on a misinterpretation of the Mayan calendar. This belief led to fears regarding catastrophic events like global disasters or the end of the world, but none of these predictions came true and the year 2012 passed without any major catastrophic event.
To destroy the planet (as in blow it into pieces), no. But to destroy all live on the surface, yes.
what the answer.
The world will end with a whimper through gradual decline and decay rather than a sudden catastrophic event.
There was no reason for the world to end. There was no catalyst. The world will not end without some catastrophic natural event big enough to end it.
Earthquakes.
It is a Catastrophic Event.
wildfires
It seems like there may be a typo in your question. Did you mean "apocalypse"? If so, an apocalypse refers to a catastrophic event that leads to widespread destruction or the end of the world in various religious beliefs and cultural traditions.
makind
Catastrophic extinction event.