Surely, you must be joking. Was the destruction of world war 1 caused by earthquakes or by manmade weapons? How do wars among men reveal the power of God, if man has risen against man from the very beginning? A "plague" is a power that is brought on by God, not by man, so that by the power that is brought, man may say, "surely this is the finger of God bringing this", and in that way, God is glorified, and also feared. Just as it was in the days of Egypt, God has determined to bring plagues upon the entire earth, so through his power, all nations may be in dread of him, and be broken like pottery, so that they may then be ruled over by the people of God. This is the truth, believe this or believe your worthless lies that make the power of God revealed in book of Revelation out to be mere ordinary events of man.
I am sorry that I have presented something different to your understanding. I too once, was looking for earthquakes to hang my theories off as the signpost for the end times, but when the translators gave two different meaning to the same Greek word in the New Testament, I had to ask the question, "How was this possible?"
In 2001, after the 9/11 signs and wonders event, of Revelation_16:12-16, I realised that the observable outcomes confirmed the prophesies of the three foul and wicked frog like spirits that went out from the mouth of the Dragon, the false prophet and the beast had occurred. The indications were the outcomes of the prophecy being fulfilled after they had gone out, like, all of the world seeing the unfolding events as they unfolded, and the world all gathering together in their living rooms to watch their TV's as the second tower was struck by the second plane over New York. The next sign that confirmed that the Revelation_16:12-16 was still unfolding was the beginning of the process by the USA President at that time to gather all of the nations together to act in unity against a perceived threat to the global community.
The sign given, as described in Daniel_7:7-12 is of the Little Horn, i.e. the false prophet of Revelations, in conjunction with the people inhabiting the dominion of the fourth Beast, speaking out pompous words against God, telling the whole world that Allah was a stronger god than the Jewish or Christian God at this present time.
So, looking at the outcomes of the Bowl Judgements, I was able to perceive that the 7th Bowl Judgement began around 100 years ago during the time of great turmoil around the world which had not been seen up to and until that time.
I was also able to perceive that the 6th Bowl Judgement had begun around 1400 or so years ago after Christianity had for all but overtaken the Baal worship around the Euphrates River and in effect had caused the Baal Religion, symbolised as the Euphrates River, to dry up. In place of the Baal religion along the Euphrates River we now have the Islamic religion which is the highway for the three kings on the eastern side of the Euphrates River to be able to march in the future into Jerusalem.
The final sign in this prophecy is the gathering of the Nation in the valley of decision, i.e. at Armageddon and that is still a near future event that will occur in around 20-30 years from now when the end of this present Age will occur.
Now you can call what I have posted, "worthless lies," but when God demonstrated His power to both the Northern and Southern Kingdoms, God used the might of earthly kingdoms/armies to pour out His wrath against them. God has also used the plagues of Egypt to punish the banished and scattered nation of the Israelites where they are presently living as He informed them He would in the Holiness Code found in both Leviticus and Deuteronomy.
God's finger heralded the arrival of the Meds and the Persians when they drained the river flowing through the city of Babylon and over powered the city. God's power and fulfilment of prophecy was demonstrated through the marching armies of man, fulfilling His purposes throughout the history of Mankind.
Perhaps, it is time for you to become reflective and reconsider the “truth” in your developed theories as to How God Will demonstrate His Power among the Nations.
Shalom