Can People Miss Such an Event?

With all the clear signs, it may be of interest (though hard to believe) to read that many would not even be aware of what would be happening, (as if dead or in deep slumber):

[19:39] : "Warn them of the Day of Pining (distress) when all matters have been judged, though they would still be unaware of it, and unbelievers."

[30:55-6] : "On the Day that the Hour (of Reckoning) will be established, the transgressors will swear that they tarried not but an hour: thus were they used to being deluded! But those endued with knowledge and faith will say: "Indeed ye did tarry, within Allah's Decree, to the Day of Resurrection, and this is the Day of Resurrection: but ye - ye were not aware!"

[12:107] : "Do they really believe that an all-encompassing punishment by God will not come upon them, or the Hour overtake them suddenly while they remain unaware of it. "

[34:28] : "We have not sent thee (Muhammad) but to the whole of mankind, as a giver of glad tidings and as a warner, but most of mankind still do not know."