Interpretation rule
seismic-ingv-mps04-le-005
When it applies
Source class
AG_LE_005
The rule fires when the named source publishes this class for the point being asked about. Until the source does, TerraOverview adds nothing.
TerraOverview interpretation: low baseline seismic hazard (band 4 of 4: reference acceleration up to 0.05 g)
At the nearest grid node, INGV computes a peak horizontal acceleration up to 0.05 g with 10% probability of exceedance in 50 years: the lowest of the four intervals defined by OPCM 3519/2006. It is an estimate of expected ground motion on rigid ground, not a prediction about how a building behaves, which also depends on how it was built. The value excludes local amplification and is not the municipality’s seismic zone.