They are fleeing the cities and heading for the mountains and the deserts in desperate attempts to escape the coronavirus plague:
The Bible talks about this:
And it came to pass, when they had brought them forth abroad, that he said, Escape for thy life; look not behind thee, neither stay thou in all the plain; escape to the mountain, lest thou be consumed.
Revelation 6:16 King James Version (KJV)
16 And said to the mountains and rocks, Fall on us, and hide us from the face of him that sitteth on the throne, and from the wrath of the Lamb: