Reservoirs are designed to withstand earthquakes through a combination of engineering and structural measures. The dam and associated infrastructure are typically designed to meet seismic building codes and standards. Engineers consider factors like the location's seismic activity, the reservoir's proximity to a fault line, and the potential ground shaking. The dam is designed to be structurally resilient, with reinforced materials and flexible features to absorb seismic energy.
Additionally, monitoring and early warning systems are often in place to detect and respond to seismic activity, allowing for quick actions to safeguard the reservoir's integrity. Overall, reservoirs are constructed with a focus on earthquake resistance to minimize the risk of dam failure and associated hazards during seismic events.