Earthquake causing Tsunamis
Rev 6:12-14 I looked when He opened the sixth seal, and behold, *there was a great earthquake*; and the sun became black as sackcloth of hair, and the moon became like blood. And the stars of heaven fell to the earth, as a fig tree drops its late figs when it is shaken by a mighty wind. Then the sky receded as a scroll when it is rolled up, and every mountain and island was moved out of its place.
The great earthquake worldwide will cause many extremely huge tsunamis and men will hear the roaring of the waves.
Because all men have heard the gospel earlier, so when they see the great earthquake, heavenly blackout, heavenly hosts and the Lord Jesus as stars falling from heaven and also Christians caught up to the Lord, they will fear the coming judgment for their stupidity of rejecting Jesus as the Saviour.
Luke 21:25-27 "And there will be signs in the sun, in the moon, and in the stars; and on the earth distress of nations, with perplexity, the sea and the waves roaring; men's hearts failing them from fear and the expectation of those things which are coming on the earth, for the powers of heaven will be shaken. Then they will see the Son of Man coming in a cloud with power and great glory."
Half of those left behind Killed
Luke 17:34-37 "I tell you, in that night there will be two men in one bed: the one will be taken and the other will be left. Two women will be grinding together: the one will be taken and the other left. Two men will be in the field: the one will be taken and the other left." And they answered and said to Him, "Where, Lord?" So He said to them, "Wherever the (dead) body is, there the eagles (vultures) will be gathered together."
Half of all those left behind will be killed (food for the vultures) by the great earthquakes and huge tsunamis. All of them will be condemned to eternal damnation for they had accepted the mark of the beast during the period of the great tribulation.
Unfortunately, all those still alive will have to face the 7th Seal, which brings in the wrath of God or the wrath of the Lamb (7 bowls/trumpets)
Note - The 144,000 new Jewish converts will be protected from the wrath of God.
Rev 6:15-17 And the kings of the earth, the great men, the rich men, the commanders, the mighty men, every slave and every free man, hid themselves in the caves and in the rocks of the mountains, and said to the mountains and rocks, "Fall on us and hide us from the face of Him who sits on the throne and from the wrath of the Lamb! "For the great day of His wrath has come, and who is able to stand?"
The Wrath of God
Rev 8:1-2, 7 When He opened the seventh seal, there was silence in heaven for about half an hour. And I saw the seven angels who stand before God, and to them were given seven trumpets.
This wrath is excruciating and many want death but they will not be able to find it. This is only a preview of the eternal suffering in the Lake of fire.
So let's flee from worldliness, covetousness, selfishness, unforgiveness and merciless towards our brethren.
Rev 9:4-6 They were commanded not to harm the grass of the earth, or any green thing, or any tree, but only those men who do not have the seal of God on their foreheads. And they were not given authority to kill them, but to torment them for five months. Their torment was like the torment of a scorpion when it strikes a man. In those days men will seek death and will not find it; they will desire to die, and death will flee from them.