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. 2020 Sep 8;7(1):298.
doi: 10.1038/s41597-020-00640-w.

Database of Italian present-day stress indicators, IPSI 1.4

Maria Teresa Mariucci  1 , Paola Montone  2
Affiliations

Database of Italian present-day stress indicators, IPSI 1.4

Maria Teresa Mariucci et al. Sci Data. .

Abstract

The Italian Present-day Stress Indicators (IPSI) database is a freely available Italian georeferenced repository of information regarding the crustal stress field. It consists of horizontal stress orientations that have been analysed, compiled in a standardised format and quality-ranked for reliability and comparability on a global scale. The database contains a collection of information regarding contemporary stress within the shallow crust from the following main stress-indicator categories: borehole breakouts; earthquake focal mechanisms; seismic sequences and active fault-slip data. The present database (IPSI 1.4) released in January 2020 is accessible through a web interface which facilitates findability, accessibility, interoperability and reusability of the dataset. Moreover, it contains 928 records updated up until December 2019 with an increase of 10% with respect to the first one, and improved metadata information. The uniform spread of stress data over a given territory is relevant for earth crustal modelling or as starting point in many applied studies. It is therefore necessary to continue collecting new data and update present-day stress maps to obtain more reliable evaluations.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
The Italian Present-day Stress Indicators database (IPSI 1.4). Stress data can be plotted by selecting the indicator type and quality on the left. (a) Example of focal mechanisms and inversions in the satellite map viewer. (b) Example with breakout, fault and overcoring data in the road map viewer. All datasets can be downloaded by choosing between six different file formats in the lower left box.
Fig. 2
Fig. 2
Depth distribution of stress data type. BO, borehole breakouts; FMS, earthquake focal mechanisms; FMF, formal inversions; GFS faults. Data number in logarithmic scale.
Fig. 3
Fig. 3
Examples of the IPSI website. Pop-up windows provide summary information about the selected element. (a) Borehole breakout: red contour line evidences the link to the well database of the Italian Ministry of Economic Development (https://www.videpi.com). (b) Earthquake focal mechanism: red contour shows the link to the focal mechanism catalogue with data used to infer the stress orientation. (c) Formal inversion. (d) Fault. See diagram (a) for symbol legend.
Fig. 4
Fig. 4
Main faulting and tectonic regime categories according to ref. .
See this image and copyright information in PMC

References

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