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Slow Active Faults in Europe Project: ENG1-2000-22005. Supported by: European Union, Dictorate General XII for Science, Research and Development. Involve research centers from Germany, Belgium, Spain, France, Italy, Morocco, Norway i Switzerland
SAFE is a multidisciplinary effort which proposes a homogeneous European approach in identifying and characterising active faults to evaluate seismic hazards in low-seismicity regions. This project will establish conceptual methodologies that explain the behaviour of slow active faults through diagnostic criteria.
FINISHED PROJECTS
Fault as a seismologist's tool. Project: ENV4-CT97-0578. Supported by: European Union, Environment and Climate. Research centers of Italy, Spain, France and Greece were involved (1999-2001).Collect all the available information about individual seismogenic faults in Europe and implement a data-base on an public-accessible WWW site (http://faust.ingv.it). The consultation of this site will be guided according to the usefulness of the data to various interest groups (geologists, seismologists, engineers, civil defence officers). Study sample areas in order to compare different methodologies for the identification of seismogenic faults (historical data, geomorphology, paleoseismology, geophysical prospecting, geochemical analysis, GPS methods) and assess their different reliability, and then incorporate fault information to create an improved methodology for hazard determination. This will also allow to compare how different techniques developed also in EC projects for active fault identification may lead to fault models that have a different impact and consequences on seismic hazard estimates. For sample areas, perform seismic hazard studies using different level of accuracy of fault models (a line in a plane, a plane in space, 3-d structures interacting in time) coupled with different statistical models (stationary and time-dependent) in order to assess the variation both in absolute value and in accuracy of the estimates.
Quaternary materials datation and methodology of paleoseismicity analusis. Application to El Camp Fault (Tarragona, NE Spain). Supported by: Consejo de Seguridad Nuclear (CSN) y Empresa Nacional de Residuos Radioactivos SA (ENRESA), in collaboration with Vandellòs II nuclear plant. (January 1997-December 1999).
Quaternary shapes and sediments datation in scarp zones at El Camp de Tarragona by absolute datation methods. Sampling techniques adapted to semi-arid zones and comparison between the results of these different methods. Description of the geological structures responsibles of fault scarps in El Camp zone. Detection of last strong earthquakes caused by El Camp de Tarragona fault and calculation of its paleoseismological parameters, based on the absolute ages obtained.
Evaluation of the potential for large earthquakes in regions of present day low sismic activity in Europe. Project: ENV4-CT97-0578. Supported by: European Union, Environment and Climate (1997-1999).
The proposed methodology (paleoseismology) is based on the fact that repeated coseismic displacements along an active fault in areas where young deposits are exposed, allow past large earthquakes to be geologically recorded with a typical morphological expression.
On the other hand severe shaking due to earthquakes can also induce surface ground cracking, sand injections, shallow local landslip sand other sediment deformations.
The methodology is applied in four zones from three areas with diverse seismotectonic framework: The Lower and Upper Rhine graben system characterized by extensional continental deformation, the Trentino-Alto Adige (Eastern Alps) and the Eastern Pyrenees which are regions under a compressive tectonic stress field.
Major objectives of the project were:To identify paleoearthquakes along selected active faults in the studied regions. To estimate the magnitude and recurrence time of these events. To establish a formulation of the results that is directly usable for seismic hazard analysis.
Current tectonics quantification and neotectonics of the eastern part of Iberic Peninsula. Ibérica. Supported by: Dirección General de Investigación Científica y Técnica (DIGICYT). (1994-1997)
Setting of a global positioning net on Murcia-Almeria provincesand first measurements with it. Study of vertical movements with the high precision levelling lines analysis, done by Instituto Geográfico Nacional between 1872 and 1984 along railways and roads on the eastern Iberic Peninsula. Installation of a new levelling line in Guardamar-Torrevieja zone and measurements.
Remarks: eula@geo.ub.es Maintained by H. Perea(hector@geo.ub.es) Last updated: 31 May 2002.
