Revelation 8:9
and a third part of the creatures having life, which are in the sea, died; and a third part of the ships was destroyed.
Revelation 8:7
And the first angel blew the trumpet, and there were hail and fire mingled with blood, and they were cast on the earth; and a third part of the trees was burnt up, and all green grass was burnt up.
Revelation 8:10
And the third angel blew the trumpet, and there fell from heaven a great star, burning as a torch, and it fell upon the third part of the rivers, and upon the fountains of water;
Revelation 8:12
And the fourth angel sounded, and a third part of the sun was smitten, and a third part of the moon, and a third part of the stars; so that a third part of them was darkened, and the day had no light during a third part of it, and the night likewise.
Revelation 16:3
And the second angel poured his vase upon the sea and it became blood as of a dead man: and every living creature died in the sea.