= Arias intensity
{wiki=Arias_intensity}
Arias intensity is a metric used in seismology to quantify the severity of ground shaking during an earthquake. It is defined as the integral of the square of the acceleration of ground motion over time, scaled by a factor to reflect the earthquake's impact. This measure is particularly useful because it accounts for both the amplitude and the duration of shaking, providing a better representation of the potential damage an earthquake can cause to structures and infrastructure.
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