Ayat 18 of Surat Muhammad of the Holy Qur'an (47:18) reads:--
"FAQAD JA'A ASHRAATUHA"... that is "But some of its signs (of the Last Hour) have already come".
As our late Sheikh Nazim al-Haqqani, may Allah be Merciful to him, used to say, when mercy leaves hearts people begin to kill, fight and destroy. Now we are in that era, everywhere people are fighting among themselves. A whip comes from Heaven with unexpected events like: earthquakes, floods, hurricanes and storms. All of these are SIGNS of the LAST DAY, but majority of the people still do not go back to Allah. Instead, they say, 'It is Nature'. As long as they say this, 'Nature' will come against them every now and then...