Total extermination of the biosphere by sub launched nukes, 24 D5 missiles, 8 x 475 kiloton W88 warheads, impact in 3 minuets.

" And in answer Jesus said to them: “Look out that nobody misleads YOU; 5 for many will come on the basis of my name, saying, ‘I am the Christ,’ and will mislead many. 6 YOU are going to hear of wars and reports of wars; see that YOU are not terrified. For these things must take place, but the end is not yet.
.....7 “For nation will rise against nation and kingdom against kingdom, and there will be food shortages and earthquakes in one place after another. 8 All these things are a beginning of pangs of distress.
 And this good news of the kingdom will be preached in all the inhabited earth for a witness to all the nations; and then the end will come.
......21 for then there will be great tribulation such as has not occurred since the world’s beginning until now, no, nor will occur again. 22 In fact, unless those days were cut short, no flesh would be saved; but on account of the chosen ones those days will be cut short." Mt24:21