The Prophet ﷺ said, "The Hour (Last Day) will not be established until (religious) knowledge will be taken away (by the death of religious learned men), earthquakes will be very frequent, time will pass quickly, afflictions will appear, murders will increase and money will overflow amongst you." (See Hadith No. 85 Vol 1).
قَالَ النَّبِيُّ ﷺ لاَ تَقُومُ السَّاعَةُ حَتَّى يُقْبَضَ الْعِلْمُ وَتَكْثُرَ الزَّلاَزِلُ وَيَتَقَارَبَ الزَّمَانُ وَتَظْهَرَ الْفِتَنُ وَيَكْثُرَ الْهَرْجُ وَهْوَ الْقَتْلُ الْقَتْلُ حَتَّى يَكْثُرَ فِيكُمُ الْمَالُ فَيَفِيضُ