Zechariah 14:3-5

Then the LORD will go out to fight against those nations, as he has fought in times past. On that day his feet will stand on the Mount of Olives, east of Jerusalem. And the Mount of Olives will split apart, making a wide valley running from east to west. Half the mountain will move toward the north and half toward the south. You will flee through this valley, for it will reach across to Azal. Yes, you will flee as you did from the earthquake in the days of King Uzziah of Judah. Then the LORD my God will come, and all his holy ones with him.