Earthquakes occur randomly and unpredictably—preferably in very built and in “geologically exploited” zones. 

Earthquakes cause direct damage to all mines within the area of influence, as well as malus for the mining rate, which regenerates over time.

The stronger the earthquake and the closer the mine is to the epicentre, the more severe are the negative consequences.

The special building “Seismology Centre” reduces the negative consequences of an earthquake.