Progetto Itaca
version 1.1

ITACA  release 2.1

ITACA 2.1 contains 25222 three-component accelerometric waveforms generated by 1365 earthquakes with magnitude greater than 3 in the time frame 1972-2015, including 14801 waveforms manually processed by specialists. Data have been recorded by the National Accelerometric Network (RAN), operated by the Italian Civil Protection Department - Presidency of the Council of Ministers (DPC), the National Seismic Network, operated by Istituto Nazionale di Geofisica e Vulcanologia (INGV) and regional and international networks operated by several providers. The ITACA portal allows users to query earthquake and station information and ground motion parameters, and to select and download accelerometric (processed and unprocessed) waveforms and response spectra upon user registration. The metadata relative to seismic events and recording stations are revised on a yearly basis according to authoritative sources. Events after December 31st 2015 with magnitude greater than 4 are available at the European Strong-Motion database.

ITACA is particularly targeted for:
- seismologists and strong-motion data analysts;
- earthquake and geotechnical engineers;
- national agencies;
- students and professionals, if adequately trained.

ITACA 2.1 has been compiled under the co-ordination of INGV Milano, thanks to the following contribution:
1) EU Project EPOS;
2) Agreement between INGV and DPC (2012-2021);
3) S2 project (2014-2015) in the framework of the agreement INGV-DPC.

Data search

Records compatible with target spectra



Permission to use, copy or reproduce parts of the Database is granted provided that ITACA is properly referenced as: "ITACA working group (2016), ITalian ACcelerometric Archive, version 2.1, DOI: 10.13127/ITACA/2.1".

  General overview of ITACA

Luzi, L., S. Hailemikael, D. Bindi D, F. Pacor, F. Mele, F. Sabetta (2008), ITACA (ITalian ACcelerometric Archive): A Web Portal for the Dissemination of Italian Strong-motion Data, Seismological Research Letters, 79(5), 716–722. Doi: 10.1785/gssrl.79.5.716

Pacor, F., R. Paolucci, L. Luzi, F. Sabetta, A. Spinelli, A. Gorini, M. Nicoletti, S. Marcucci, L. Filippi, M. Dolce (2011), Overview of the Italian strong motion database ITACA 1.0, Bull Earthquake Eng, 9(6), 1723–1739. Doi: 10.1007/s10518-011-9327-6


Creative Commons LicenseThe ITalian ACcelerometric Archive by INGV is licensed under a Creative Commons Attribution-NoDerivatives 4.0 International License (cfr. Section 4 – Sui Generis Database Rights). Permissions beyond the scope of this license may be available at the disclaimer section hereafter.


This site provides access to the ITalian ACcelerometric Archive (ITACA), containing strong-motion records and associated earthquake, station and waveform parameters. The user can interactively search the fully relational database and download the selected strong-motion records and associated parameters.
The strong motion records included in the data base are devoted to qualified users. The earthquake, station and waveform parameters are obtained from the best available data. Even if all the parameters have been checked by analysts, no warranty, implicit or explicit is attached to the data. Every risk due to the improper use of data or the use of inaccurate information is assumed by the user.
In no event shall INGV (Istituto Nazionale di Geofisica e Vulcanologia) be liable to any party for direct, indirect, special, incidental, or consequential damages, including lost profits, arising out of the use of the works, even if INGV has been advised of the possibility of such damage.
The license of each waveform has been assigned by the data provider. Providers should be acknowledged according to the International Federation of Digital Seismograph Networks (FDSN).

Developed by 
 for INGV