18 There were lightnings, sounds, and thunders; and there was a great earthquake, such as has not happened since there were men on the earth, so great an earthquake, and so mighty.
Revelation 16:18 Cross References - WEB
Daniel 12:1
1 “At that time Michael will stand up, the great prince who stands for the children of your people; and there will be a time of trouble, such as never was since there was a nation even to that same time. At that time your people will be delivered, everyone who is found written in the book.
Matthew 24:21
21 for then there will be great suffering, such as has not been from the beginning of the world until now, no, nor ever will be.
Revelation 4:5
5 Out of the throne proceed lightnings, sounds, and thunders. There were seven lamps of fire burning before his throne, which are the seven Spirits of God.
Revelation 6:12
12 I saw when he opened the sixth seal, and there was a great earthquake. The sun became black as sackcloth made of hair, and the whole moon became as blood.
Revelation 8:5
5 The angel took the censer, and he filled it with the fire of the altar, then threw it on the earth. Thunders, sounds, lightnings, and an earthquake followed.
Revelation 11:13
13 In that day there was a great earthquake, and a tenth of the city fell. Seven thousand people were killed in the earthquake, and the rest were terrified, and gave glory to the God of heaven.
Revelation 11:19
19 God’s temple that is in heaven was opened, and the ark of the Lord’s covenant was seen in his temple. Lightnings, sounds, thunders, an earthquake, and great hail followed.