Revelation 8:1, 5
Revelation 8:1 NASB1995
When the Lamb broke the seventh seal, there was silence in heaven for about half an hour.
Revelation 8:5 NASB1995
Then the angel took the censer and filled it with the fire of the altar, and threw it to the earth; and there followed peals of thunder and sounds and flashes of lightning and an earthquake.