The trumps are entirely different events aside from all the vials being poured once the 7th trump sounds. The differences between the first 6 vials and the first 6 trumps makes that quite clear.
Rev 8:7 The first angel sounded, and there followed hail and fire mingled with blood, and they were cast upon the earth: and the third part of trees was burnt up, and all green grass was burnt up.
Rev 16:2 And the first went, and poured out his vial upon the earth; and there fell a noisome and grievous sore upon the men which had the mark of the beast, and upon them which worshipped his image.
This also proves that they are not the same. The first trump is long before the period when the mark of the beast is given out, which is in the 6th trump yet the first vial punishes those who had taken the mark in the 6th trump. How do you punish for taking the mark before the mark is ever given out?? The mark of the beast only appears in the 6th trumpet not in any trumpet before it.
Rev 8:8 And the second angel sounded, and as it were a great mountain burning with fire was cast into the sea: and the third part of the sea became blood;
Rev 8:9 And the third part of the creatures which were in the sea, and had life, died; and the third part of the ships were destroyed.
Rev 16:3 And the second angel poured out his vial upon the sea; and it became as the blood of a dead man: and every living soul died in the sea.
Same general location, "the sea" but all the details are quite different. In the trump only thirds take place such as a third of living creatures died yet in the vial everything dies not merely a third. What we see is a greater plague than what happened in the trump. God's wrath is stronger!
Rev 8:10 And the third angel sounded, and there fell a great star from heaven, burning as it were a lamp, and it fell upon the third part of the rivers, and upon the fountains of waters;
Rev 8:11 And the name of the star is called Wormwood: and the third part of the waters became wormwood; and many men died of the waters, because they were made bitter.
Rev 16:4 And the third angel poured out his vial upon the rivers and fountains of waters; and they became blood.
Again only a third in the trump and the vial does not speak of Wormwood nor a falling star. The location is simply the same basic location of rivers and fountains and only in the vial is there a mention of becoming blood and no mention of anyone dying.
Rev 8:12 And the fourth angel sounded, and the third part of the sun was smitten, and the third part of the moon, and the third part of the stars; so as the third part of them was darkened, and the day shone not for a third part of it, and the night likewise.
Rev 16:8 And the fourth angel poured out his vial upon the sun; and power was given unto him to scorch men with fire.
Rev 16:9 And men were scorched with great heat, and blasphemed the name of God, which hath power over these plagues: and they repented not to give him glory.
Sun and moon mentioned in the trump, in thirds again but no mention of the moon in the vial nor the sun harming anyone. Extremely different accounts. No one can make these into the same events told in different ways since the differences are far too vast.
Rev 9:1 And the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit.
Rev 9:2 And he opened the bottomless pit; and there arose a smoke out of the pit, as the smoke of a great furnace; and the sun and the air were darkened by reason of the smoke of the pit.
Rev 9:3 And there came out of the smoke locusts upon the earth: and unto them was given power, as the scorpions of the earth have power.
Rev 9:4 And it was commanded them that they should not hurt the grass of the earth, neither any green thing, neither any tree; but only those men which have not the seal of God in their foreheads.
Rev 9:5 And to them it was given that they should not kill them, but that they should be tormented five months: and their torment was as the torment of a scorpion, when he striketh a man.
Rev 16:10 And the fifth angel poured out his vial upon the seat of the beast; and his kingdom was full of darkness; and they gnawed their tongues for pain,
Rev 16:11 And blasphemed the God of heaven because of their pains and their sores, and repented not of their deeds.
Here we have very different account. One a star falls, opens the pit and locust come out which is obvious the preparation of the coming beast system that will control the world but the vial only shows the kingdom of the beast being punished and plagued showing yet again that this is after the events of the trump. You can't punish the beast and it's peoples if the beast hasn't even risen to power and committed it's sins yet!
Rev 9:13 And the sixth angel sounded, and I heard a voice from the four horns of the golden altar which is before God,
Rev 9:14 Saying to the sixth angel which had the trumpet, Loose the four angels which are bound in the great river Euphrates.
Rev 9:15 And the four angels were loosed, which were prepared for an hour, and a day, and a month, and a year, for to slay the third part of men.
Rev 9:16 And the number of the army of the horsemen were two hundred thousand thousand: and I heard the number of them.
Rev 9:17 And thus I saw the horses in the vision, and them that sat on them, having breastplates of fire, and of jacinth, and brimstone: and the heads of the horses were as the heads of lions; and out of their mouths issued fire and smoke and brimstone.
Rev 9:18 By these three was the third part of men killed, by the fire, and by the smoke, and by the brimstone, which issued out of their mouths.
Rev 9:19 For their power is in their mouth, and in their tails: for their tails were like unto serpents, and had heads, and with them they do hurt.
Rev 9:20 And the rest of the men which were not killed by these plagues yet repented not of the works of their hands, that they should not worship devils, and idols of gold, and silver, and brass, and stone, and of wood: which neither can see, nor hear, nor walk:
Rev 9:21 Neither repented they of their murders, nor of their sorceries, nor of their fornication, nor of their thefts.
Rev 16:12 And the sixth angel poured out his vial upon the great river Euphrates; and the water thereof was dried up, that the way of the kings of the east might be prepared.
Rev 16:13 And I saw three unclean spirits like frogs come out of the mouth of the dragon, and out of the mouth of the beast, and out of the mouth of the false prophet.
Rev 16:14 For they are the spirits of devils, working miracles, which go forth unto the kings of the earth and of the whole world, to gather them to the battle of that great day of God Almighty.
Rev 16:15 Behold, I come as a thief. Blessed is he that watcheth, and keepeth his garments, lest he walk naked, and they see his shame.
Rev 16:16 And he gathered them together into a place called in the Hebrew tongue Armageddon.
The trump speaks of a third of men dying but the vial does not speak of any deaths only pain and sores nor does it speak of this evil army harming everyone. The vial actually speaks an army being raised which will eventually face off against Christ and his army in Rev 19. The same river is mentioned in both but all the details are completely different. That is a pattern in the trumps and vials that lets us know they are not the same events.
Rev 11:15 And the seventh angel sounded; and there were great voices in heaven, saying, The kingdoms of this world are become the kingdoms of our Lord, and of his Christ; and he shall reign for ever and ever.
Rev 11:16 And the four and twenty elders, which sat before God on their seats, fell upon their faces, and worshipped God,
Rev 11:17 Saying, We give thee thanks, O Lord God Almighty, which art, and wast, and art to come; because thou hast taken to thee thy great power, and hast reigned.
Rev 11:18 And the nations were angry, and thy wrath is come, and the time of the dead, that they should be judged, and that thou shouldest give reward unto thy servants the prophets, and to the saints, and them that fear thy name, small and great; and shouldest destroy them which destroy the earth.
Rev 11:19 And the temple of God was opened in heaven, and there was seen in his temple the ark of his testament: and there were lightnings, and voices, and thunderings, and an earthquake, and great hail.
Rev 16:17 And the seventh angel poured out his vial into the air; and there came a great voice out of the temple of heaven, from the throne, saying, It is done.
Rev 16:18 And there were voices, and thunders, and lightnings; and there was a great earthquake, such as was not since men were upon the earth, so mighty an earthquake, and so great.
Rev 16:19 And the great city was divided into three parts, and the cities of the nations fell: and great Babylon came in remembrance before God, to give unto her the cup of the wine of the fierceness of his wrath.
Rev 16:20 And every island fled away, and the mountains were not found.
Rev 16:21 And there fell upon men a great hail out of heaven, every stone about the weight of a talent: and men blasphemed God because of the plague of the hail; for the plague thereof was exceeding great.
Only these match events and timeframe and that is no surprise because all 7 vials pour once the 7th trump sounds. These are the only pair that actually match and can be said to be speaking of the same events.