CRUST is an extended academic-community primarily aimed at promoting and developing academic research on Seismotectonics. Its specific goal is the deep understanding of seismic and tectonic processes in the light of the present and long-term crustal deformation history, at scales from regional to local.
Structural geology, regional tectonics, active tectonics, earthquake geology, tsunami genesis, historical seismicity, active and passive seismology, active topography, geodesy, analog and finite element modeling represent the knowledge arsenal of the CRUST community.
Italy will be the key study-area, but the circum-Mediterranean area and other regions in the world with relevant seismic hazard will be considered. The investigated tectonic provinces and individual tectonic structures will be analyzed and modeled on a four-dimensional scale, with the aim of contributing to the construction of a crust-scale world-wide detailed Quaternary fault and fold database. On one hand, this database will support and make possible a new generation of seismic hazard maps, on the other it will be useful to constrain and validate the tectonic/geodynamic models, for a better understanding of plate tectonic processes.
CRUST members mainly consists of Italian structural geologists, active tectonists, seismologists and geophysists eager to share their mutual knowledge and experience. To start, their integrated research will be aimed to improve knoledwge on active tectonics and seismicity in Italy, approaching the problem at a 3D scale, and taking in mind the need of providing real-time scientific assessments to Civil Projection decision makers during a seismic emergency.
A broad range of basic and applied topics will be addressed, starting from the Italian region assumed as a case study:
- Identification of unknown active faults by integrating the basic geologic approach with high-resolution topographic analysis and with interferometric data;
- Building of an open-database of a second-generation of Quaternary and active fault traces (highly detailed and harmonized over the Italian teritory);
- Building of a second-generation of 3D fault models, reconstructing detailed Quaternary and potentialy seismogenic surfaces with variations along strike and dip;
- Building of a detailed and realistic 3D model of the earth structure (velocity, density, attenuation, etc.);
- Building of a realistic tectonic, stratigraphic and seismic crustal 3D fault-block model of Italy, highly detailed but easily accesible, to be used in fault-system analysis, ground-motion prediction, hazard assessment etc..
- Detailed analysis at a 4D-scale of the earthquake process propagation from source to depth during major and minor instrumental seismic sequences.
Many other research topics may involve CRUST, such as
- Relationships between Slow Seismic Events, swarms and active and potentially seismogenic structures;
- Physics of the earthquake process;
- Identification and study of tsunami sources;
- Study of triggered and induced seismicity at the local and regional scale;
- Analysis of local geological effects on seismic site response;
More details may be found in “Research Units”