The first angel blew his trumpet, and hail and fire mixed with blood were thrown down upon the earth, and one-third of the earth was set on fire. One-third of the trees were burned, and all the grass was burned.
Then the second angel blew his trumpet, and a great mountain of fire was thrown into the sea. And one-third of the water in the sea became blood.
And one-third of all things living in the sea died. And one-third of all the ships on the sea were destroyed.
Then the third angel blew his trumpet, and a great flaming star fell out of the sky, burning like a torch. It fell upon one-third of the rivers and on the springs of water.
The name of the star was Bitterness. It made one-third of the water bitter, and many people died because the water was so bitter.
References for Revelation 8:11
Then the fourth angel blew his trumpet, and one-third of the sun was struck, and one-third of the moon, and one-third of the stars, and they became dark. And one-third of the day was dark and one-third of the night also.
Then I looked up. And I heard a single eagle crying loudly as it flew through the air, "Terror, terror, terror to all who belong to this world because of what will happen when the last three angels blow their trumpets."