This part shows us, what is the punishment of Allah we we insist disobeying Him (SWT).
Allah says:
[And when We decide to destroy a town (population), We (first) send a definite order (to obey All�h and be righteous) to those among them (or We (first) increase in number those of its population) who lead a life of luxury. Then, they transgress therein, and thus the word (of torment) is justified against it (them). Then We destroy it with complete destruction.] 17:16
[And they ask you concerning the mountains: say, `My Lord will blast them and scatter them as particles of dust * Then He shall leave it as a level smooth plain.] 20:105-106
[So when they angered Us, We punished them, and drowned them all.] 43:55
[We wronged them not, but they were the Z�lim�n (polytheists, wrong-doers).] 43:76