Global Disaster: I have a dungeon

Global catastrophe suddenly, the start 9.5 earthquake buried me 25 meters underground!
I’m going to die, what should I do?
Ding!
Dungeon system activation!
Open your own underground space!
No supplies? It doesn’t matter! Build a planting base in the underground space!
No electricity? Little! “Super Sun” is upgraded!
The next wave of disaster is about to be coming! are you ready?