Revelation 8:6-8

Young's Literal Translation

⁶ And the seven messengers who are having the seven trumpets did prepare themselves that they may sound;

⁷ and the first messenger did sound, and there came hail and fire, mingled with blood, and it was cast to the land, and the third of the trees was burnt up, and all the green grass was burnt up.

⁸ And the second messenger did sound, and as it were a great mountain with fire burning was cast into the sea, and the third of the sea became blood,