Probable Maximum Loss (PML)

The Probable Maximum Loss (PML) is a tool used to evaluate the seismic risk of a building and identify assets with high seismic risk. The Probable Maximum Loss report identifies the PML value, expressed as a percentage of the building's replacement cost and estimates the potential damage during a 475-year earthquake - the lower the percentage, the lower the expected damage. The PML value can be expressed either as the Scenario Expected Loss (SEL) or the Scenario Upper Loss (SUL).

The scope of work for the Probable Maximum Loss can vary, but is primarily identified by two ASTM standards: E2026 and E2557.

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