Revelation 9:15
Then the four angels, that were held in readiness for that hour and day and month and year, were let loose, to destroy a third of mankind.
Revelation 8:7
The first blew; and there came hail and fire mixed with blood, and it fell upon the earth. A third part of the earth was burnt up, and a third of the trees, and every blade of grass.
Revelation 9:18
Through these three Curses a third of mankind perished--because of the fire, and the smoke, and the sulphur that issued from their mouths;
Revelation 8:9
and a third part of all created things that are in the sea--that is, of all living things--died, and a third of the ships was destroyed.
Revelation 8:11-12
(The star is called 'Wormwood.') A third of the water became bitter as wormwood, and so bitter was the water that many died from drinking it.
Revelation 9:5
Yet they were not allowed to kill them, but it was ordered that those men should be tortured for five months. Their torture was like the torture caused by a scorpion when it stings a man.
Revelation 9:10
They have tails like scorpions, and stings, and in their tails lies their power to harm men for five months.