If i place dsa drills and have random disasters/earthquakes turned off is there still a chance

[next rampart]

Chance for the earthquakes to happen

[dry jackal]

Random disasters setting only manages whether the game truly creates random disasters without any reason.

Disasters such as mining drills, missile silos, rocket failures and nuclear power plant explosion have specific reasons (triggers) for happening.

In the case of mining drills, it happens if there's a lot of drills and they don't have stability upgrades.