User advice
This is a "static" version of a former ITACA database, mantained only for historical and reference purposes.
Each ITACA version is periodically revised by specialists to detect errors and inconsistencies improving data and metadata quality. Therefore, it is recommended to use the latest ITACA version which includes up to date information and provides an user friendly interface to query the database for data and metadata access.
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Metadata
Waveform Data
ITACA 3.2 (released February 2022)
ITACA 3.2 contains more than 54900 three-component accelerometric waveforms generated by 2270 earthquakes with magnitude greater than 3 in the time frame 1972-2021. 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.
Events after January 1st 2022 with magnitude greater than 4 are available at the Engineering Strong-Motion database which is daily updated.
The major contribution to ITACA 3.2 comes from B2 2016-2017 Project (DPC-INGV Agreement 2012-2021, Obiettivo 1 - Task B) focused on site characterization. 18 new shear-wave velocity profiles, 150+ noise measurements and about 300 geological maps, with different levels of detail, are available in this release.
ITACA 3.2 has been compiled under the co-ordination of INGV Milano, with the contribution of Agreement between INGV and DPC (2012-2021)
ITACA is the national layer of EPOS for the distribution of accelerometric data.
Products
ITACAext flatfile
The ITACAext flat-file is a parametric table containing metadata and intensity measures of manually processed waveforms, relevant for the analysis of the ground-motion in Italy. The flat-file is constituted by the data included in ITACA3.2 up to 2020 December 31st.
More info | Download the flatfile itself
ITACAs2s flatfile
The ITACAs2s flatfile is a parametric table containing the repeatable site terms δS2S (Al-Atik et al., 2010) and the associated variabilities, evaluated with respect to the ITA18 ground-motion model (Lanzano et al., 2019) for acceleration spectral ordinates (SA, 5% damping). These terms quantify the systematic deviations between observed ground-motion and predictions at a site.
Tools
pyasdf - a python software library to access waveform files in ASDF format.
Additional Information
User manual | Main updates | Glossary | Contributing networks | Credits