How does God's future wrath compare to natural disasters like floods, earthquakes, and volcanoes?

Les explains that the wrath of God is not currently being poured out; people have no idea what it will do. Even floods, earthquakes, and volcanoes are nothing compared to what it will be when God's wrath is finally released. In the surrounding imagery, the gathering of grapes into the wine vat pictures the gathering of military people into the valley of Esdraelon, down the Jordan Valley, and other low-lying areas of Israel. They are packed in like sardines in a can, contrary to good military operation, but forced by a sovereign God into those valleys. That wine vat is then crushed by the very presence of God, and the angel thrusts in his sickle, gathers the vine, and casts it into the great wine press of the wrath of God.