﴿ ظَهَرَ ٱلْفَسَادُ فِى ٱلْبَرِّ وَٱلْبَحْرِ بِمَا كَسَبَتْ أَيْدِى ٱلنَّاسِ لِيُذِيقَهُم بَعْضَ ٱلَّذِى عَمِلُوا۟ لَعَلَّهُمْ يَرْجِعُونَ ﴾

“[Since they have become oblivious of God,] corruption has appeared on land and in the sea as an outcome of what men’s hands have wrought: and so He will let them taste [the evil of] some of their doings, so that they might return [to the right path].”

Please check ayah 30:42 for complete tafsir.