Revelation 8:9-10

8:9 and a third of the creatures living in the sea died, and a third of the ships were completely destroyed.

8:10 Then the third angel blew his trumpet, and a huge star burning like a torch fell from the sky; it landed on a third of the rivers and on the springs of water.

Revelation 8:12

8:12 Then the fourth angel blew his trumpet, and a third of the sun was struck, and a third of the moon, and a third of the stars, so that a third of them were darkened. And there was no light for a third of the day and for a third of the night likewise.