Revelation 8:8
The second angel blew his trumpet; and what seemed to be a great mountain, all ablaze with fire, was hurled into the sea; and a third part of the sea was turned into blood.
Mark 11:23
In solemn truth I tell you that if any one shall say to this mountain, 'Remove, and hurl thyself into the sea,' and has no doubt about it in his heart, but stedfastly believes that what he says will happen, it shall be granted him.
Revelation 8:7
The first blew his trumpet; and there came hail and fire, mixed with blood, falling upon the earth; and a third part of the earth was burnt up, and a third part of the trees and all the green grass.
Revelation 11:6
They have power given to them to seal up the sky, so that no rain may fall so long as they continue to prophesy; and power over the waters to turn them into blood, and to smite the earth with various plagues whenever they choose to do so.
Revelation 16:3-21
The second angel poured his bowl into the sea, and it became blood, like a dead man's blood, and every living creature in the sea died.