Earthquakes: Symbolical
Source: Nav
Revelation 6:12–14
And when I saw the Lamb open the sixth seal, there was a great earthquake, and the sun became black like sackcloth of goat hair, and the whole moon turned blood red, / and the stars of the sky fell to the earth like unripe figs dropping from a tree shaken by a great wind. / The sky receded like a scroll being rolled up, and every mountain and island was moved from its place.
Revelation 11:13
And in that hour there was a great earthquake, and a tenth of the city collapsed. Seven thousand were killed in the quake, and the rest were terrified and gave glory to the God of heaven.
Revelation 16:18, 20
And there were flashes of lightning, and rumblings, and peals of thunder, and a great earthquake the likes of which had not occurred since men were upon the earth—so mighty was the great quake. / Then every island fled, and no mountain could be found.