I have to say this is a hoax. Revelation 8-11:
1st trumpet: "there came hail and fire mixed with blood, and it was hurled down on the earth. A third of the earth was burned up, a third of the trees were burned up, and all the green grass was burned up."
Hasn't happened.
2nd trumpet: "something like a huge mountain, all ablaze, was thrown into the sea. A third of the sea turned into blood, 9 a third of the living creatures in the sea died, and a third of the ships were destroyed."
Hasn't happened.
3rd trumpet: "a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water— 11 the name of the star is Wormwood.[a] A third of the waters turned bitter, and many people died from the waters that had become bitter."
Hasn't happened.
4th trumpet: "a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them turned dark. A third of the day was without light, and also a third of the night."
Hasn't happened.
5th trumpet: "a star that had fallen from the sky to the earth. The star was given the key to the shaft of the Abyss. 2 When he opened the Abyss, smoke rose from it like the smoke from a gigantic furnace. The sun and sky were darkened by the smoke from the Abyss. 3 And out of the smoke locusts came down on the earth and were given power like that of scorpions of the earth."
Hasn't happened.
6th trumpet: "I heard a voice coming from the four horns of the golden altar that is before God. It said to the sixth angel who had the trumpet, 'Release the four angels who are bound at the great river Euphrates.' And the four angels who had been kept ready for this very hour and day and month and year were released to kill a third of mankind."
Hasn't happened.
7th trumpet: "Then God’s temple in heaven was opened, and within his temple was seen the ark of his covenant. And there came flashes of lightning, rumblings, peals of thunder, an earthquake and a severe hailstorm."
Hasn't happened.
And I think when these trumpets do sound it will be heard everywhere by everyone; not in select locations.
"Watch out that you are not deceived. For many will come in my name, claiming, ‘I am he,’ and, ‘The time is near.’ Do not follow them. When you hear of wars and uprisings, do not be frightened. These things must happen first, but the end will not come right away.” - Luke 21:8