What really causes earthquakes are :
1: ground water extraction-decrease in pore pressure
2: pore fluid flows
3: ground water-increase in pore pressure
4: building dams
5: heavy rain.
The we do to prevent earthquakes:
Well we all know we cannot prevent natural earthquakes from occurring,but we can significantly mitigate their effects by identifying:
1:harzards
2: building safer structures
3: providing education on earthquakes
4:by preparing safety for natural earthquakes
5: human induced earthquakes