Revelation 6:12 And I beheld when he had opened the sixth seal, and, lo, there was a great earthquake; and the sun became black as sackcloth of hair, and the moon became as blood;
13 And the stars of heaven fell unto the earth, even as a fig tree casteth her untimely figs, when she is shaken of a mighty wind.
14 And the heaven departed as a scroll when it is rolled together; and every mountain and island were moved out of their places.
15 And the kings of the earth, and the great men, and the rich men, and the chief captains, and the mighty men, and every bondman, and every free man, hid themselves in the dens and in the rocks of the mountains;
16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb:
17 For the great day of his wrath is come; and who shall be able to stand?
As the sixth seal is about to be opened it is important to remember that the first four seals were destruction by the antichrist and his armies and man fighting against man. The false peace that was first implemented and then the chaos and destruction that followed. Now the sixth seal begins to let nature and God take its part getting people to realize who is really in charge. The 144000 and the two witnesses have been trying to get people to listen and accept Christ but now the ones that are left have pretty much waited till it is too late and as earthquakes and volcanoes begin to take place they realized they should have listen because it does not matter what position you hold in life now it is going to be hard to make into heaven now. People at this time are wanting to die thinking they will safe from God. So for what has taken place has covered the first 3 and1/2 years. The best time to make sure you do not have to face this is now while you have the time to accept Christ and go up with Him when that trumpet blows.