Here Allah tells us that He has decreed and it is written in Al-Lawh Al-Mahfuz (The Preserved Tablet) which is with Him, that there is no town that He will not destroy by wiping out all its people or by punishing them,

﴿عَذَاباً شَدِيداً﴾

(with a severe torment.) either by killing them or sending calamities upon them as He wills. This will be because of their sins, as Allah says of the past nations:

﴿وَمَا ظَلَمْنَـهُمْ وَلَـكِن ظَلَمُواْ أَنفُسَهُمْ﴾

(We wronged them not, but they wronged themselves.) ﴿11:101﴾

﴿فَذَاقَتْ وَبَالَ أَمْرِهَا وَكَانَ عَـقِبَةُ أَمْرِهَا خُسْراً ﴾

(So it tasted the evil result of its affair (disbelief), and the consequence of its affair (disbelief) was loss.) ﴿65:9﴾

﴿وَكَأِيِّن مِّن قَرْيَةٍ عَتَتْ عَنْ أَمْرِ رَبِّهَا وَرُسُلِهِ﴾

(And many a town (population) revolted against the command of its Lord and His Messengers;) ﴿65:8﴾ and many Ayat.

﴿وَمَا مَنَعَنَآ أَن نُّرْسِلَ بِالاٌّيَـتِ إِلاَّ أَن كَذَّبَ بِهَا الاٌّوَّلُونَ وَءَاتَيْنَا ثَمُودَ النَّاقَةَ مُبْصِرَةً فَظَلَمُواْ بِهَا وَمَا نُرْسِلُ بِالاٌّيَـتِ إِلاَّ تَخْوِيفًا ﴾

(59. And nothing stops Us from sending the Ayat but that the people of old denied them. And We sent the she-camel to Thamud as a clear sign, but they did her wrong. And We sent not the signs except to make them afraid (of destruction).)