Agreed, the Great tribulation (The wrath of Almighty God) has not started. But I truly believe the birthing pains of the tribulation have begun. These birthing pains given by Jesus when asked by his disciples what would be the signs of his return and the end of the age, answered: There will be famine, plagues, pestilence wars and rumors of wars, and earthquakes in diverse places. And the Earth is now rich in proof of those signs.
Just my 2 cents