Revelation 8:7-11

7The first angel sounded his trumpet, and 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. 8The second angel sounded his trumpet, and something like a huge mountain, all ablaze, was thrown into the sea. A third of the sea turned into blood,

9a third of the living creatures in the sea died, and a third of the ships were destroyed. 10The third angel sounded his trumpet, and a great star, blazing like a torch, fell from the sky on a third of the rivers and on the springs of water—

11the name of the star is Wormwood. Wormwood is a bitter substance. A third of the waters turned bitter, and many people died from the waters that had become bitter.