What does the Red button of a computer inside Hollywood sewer do?

After I pressed it, someone said "This can't be good" and ground's shaking. I thought water should fill in this sewer or something but no, nothing else happened.

Is there any event about it? Or is it some kind of easter egg?

2

2 Answers

You will get an achievement for pressing it. A Steam user is mentioning it on this post (tenth comment) and it is confirmed by the Wasteland 2 Achievements Gamepedia Page. The achievement is called "Pushed the button".

Also, this Achievements Guide tells you exactly how and where to get it.

Quoting this walkthrough of the game...

Computer – Suspicious computer, with big dagerous^[sic] looking red button... After pushing him ground will shake, but nothing more happens.

It's no more than a quick bout of humor.