Acceleration Spectrum Intensity (ASI) values for Italy in three structural period ranges (0.1-0.5s, 0.4-0.8s, 0.7-1.1s)

Type Dataset Class type Seismological and infrasonic data (Earth and sea)

Acceleration Spectrum Intensity Hazard Italy Italian Building Code Site Effects


The ASI dataset is a table containing the Acceleration Spectrum Intensity (ASI) computed for 1,222 million grid points in Italy. For each node of the grid, the 5%-damped elastic acceleration response spectrum was computed using the ESM REXEL-target-spectrum Web-Service (https://esm-db.eu/esmws/rexel-target-spectrum/1/) and according to the Italian Building Code, also considering the corresponding subsoil category and topographic class. The ASI parameter was evaluated as its integral average and was estimated over three overlapping period ranges (0.1-0.5s, 0.4-0.8s, 0.7-1.1s). The continuous ASI values were, subsequently, classified into five seismic hazard classes.

Data and Resources

This dataset has no data

Cite as

Felicetta C., Pacor F., Luzi L., Mascandola C., Sgobba S., Pasetti N. (2026). Acceleration Spectrum Intensity (ASI) values for Italy in three structural period ranges (0.1-0.5s, 0.4-0.8s, 0.7-1.1s) (Version 1.0) [Data set]. Istituto Nazionale di Geofisica e Vulcanologia (INGV). https://doi.org/10.13127/asi123

Available data encoding formats csv

Field Value
Version 1.0
Dataset Identifier (DOI) 10.13127/asi123
Acronym ASI
Other Identifier OthId Identifier: ingv_1222
OthId Organization: INGV
Dataset Themes TECH
Publisher Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Release Date 2026-07
Modification Date 20-07-2026
Geographical Name Organizational Unit Responsible Competence Area
GeoNames URL Not available
Dataset Languages ITA
Temporal Coverage Not available
Rights holder ANIA Servizi e Formazione Srl
Update frequency never
Version Of Not available
Spatial extent {"type": "MultiPolygon","coordinates": [[[ [6.6266,47.0933], [18.5218,47.0933], [18.5218,35.4943], [6.6266,35.4943], [6.6266,47.0933] ]]]}
Author Not available
Class type Earthquakes Department
Seismological and infrasonic data (Earth and sea)

Contributing projects

  • ANIA - Sviluppo di una metodologia per stime di pericolosità finalizzata a valutazioni semplificate del rischio sismico
    ANIA Servizi e Formazione Srl
    [ 2020-04-15 ⇒ 2020-12-31 ]

Data schema