Seismicity and seismic classification of every Italian town, along with a search engine
The Italian regions, to which the State delegated the adoption of the seismic classification of the territory (Legislative Decree No. 112 of 1998 and Decree of the President of the Republic No. 380 of 2001 - "Single Text of the Standards for Construction"), compiled the list of municipalities with its attribution to one of the four declining hazardous areas in which the national territory was reclassified.
From 1 July 2009 for each new building reference must be made to a reference acceleration identified on the basis of the geographic coordinates of the building area and alaso depending on the nominal life of the building.
This acceleration value is defined for each point of the national territory, on a square mesh of 5 km, regardless of the municipal administrative boundaries.
The seismic classification (seismic zone belonging to the municipality) remains useful only for the management of planning and for the control of the territory by the entities concerned. (Source: Department of Civil Protection)
Please find below the related table:
|Seismic class||Minimum acceleration with a probability of exceeding 10% in 50 years (ag)||Maximum acceleration with probability of exceeding 10% in 50 years (ag)|
|1||More than 0.25||No limit|
|2||More than 0.15||Less or equal to 0.25|
|3||More than 0.05||Less or equal to 0.15|
|4||More or equal than 0||Less or equal to 0.05|
You will find:
Choose the town
You can conduct provincial-level surveys by seismic area by selecting the desired values in the form below.
The list of all municipalities that meet the search criteria will be returned.