Revelation 8:9
and a third of the living creatures in the sea died; and a third of the ships were destroyed.
Revelation 8:7
The first angel sounded his trumpet, and there came hail and fire, mixed with blood, and they were thrown to the earth; and a third of the earth was burned up, and a third of the trees were burned up, and all the green grass was burned up.
Revelation 8:10
The third angel sounded his trumpet, and a great star fell from heaven, blazing like a torch, and it fell on a third of the rivers and on the springs of water.
Revelation 8:12
The fourth angel sounded his trumpet, and a third of the sun was struck, a third of the moon, and a third of the stars, so that a third of them darkened. And a third of the day was without light, and also a third of the night.
Revelation 16:3
The second angel poured out his bowl on the sea, and it became blood like that of a dead man, and every living thing in the sea died.