Perhaps it is a warning to all those moneyed persons who are going there to hide from the woes of this earth.
Isaiah 2: 19-21
“19 And they shall go into the holes of the rocks, and into the caves of the earth, for fear of the LORD, and for the glory of his majesty, when he ariseth to shake terribly the earth. 20 In that day a man shall cast his idols of silver, and his idols of gold, which they made each one for himself to worship, to the moles and to the bats; 21 To go into the clefts of the rocks, and into the tops of the ragged rocks, for fear of the LORD, and for the glory of his majesty, when he ariseth to shake terribly the earth.. . “ . .
Getting Biblical.
The Revelation Earthquake will be 100 on the rictor scale.