I personally believe the earth is going to be consumed by fire, and that in a sense it shall also cleanse and renew the earth. But I also believe that God is going to allow a remnant of mankind to remain to repopulate the earth during the millennium.I don't mind if I am wrong in this case. I hope I am. That means per Amil verse 13 would be meaning after Christ has returned, except some Amils have the entire planet literally engulfed in flames the same way it was engulfed in water. As if verse 13 makes sense per a scenario like that, that if the entire planet is literally burning everything and everyone up, that there would be this pointless earthquake that kills this 7000, and that there would be this pointless remnant that were affrighted by this, so they then gave glory to God out of heaven. All the while the entire planet is supposed to be burning up everything and everyone in it's path. Ok, if you say so. Makes perfect sense to me---not.
Nothing supports their literal interpretation of 2 Peter 3:10-12. Revelation 11:11-13 certainly doesn't. Nor does anything recorded in Revelation 19 support it. There is nothing in the text that suggests the entire planet is literally engulfed in flames at the time.
I suppose if people were to go underground during this time they could survive. But to me God allows a few men to survive in order to fulfill His will and purpose during the millennium.