﴿ فَإِنَّمَا هِىَ زَجْرَةٌۭ وَٰحِدَةٌۭ ﴾

“[But,] then, that [Last Hour] will be [upon them of a sudden, as if it were] but a single accusing cry -”

God exalted be He says But it the Aftershock which will be followed by the Resurrection will be only a single blast and so when it is blasted