PGA, or Peak Ground Acceleration, is a key measurement in seismic engineering that quantifies the maximum acceleration experienced by the ground during an earthquake. It is often expressed in units of 'g' (where 1 g is equivalent to the acceleration due to gravity, approximately 9.81 m/s²). Understanding PGA is essential for assessing potential earthquake impacts on structures and is a critical component in evaluating seismic vulnerability and designing resilient buildings.
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