Abstract
Knowledge and visualization of the present-day relationship between earthquakes, active tectonics and crustal deformation is a key to understanding geodynamic processes, and is also essential for risk mitigation and the management of geo-reservoirs for energy and waste. The study of the complexity of the Greek tectonics has been the subject of intense efforts of our working group, employing multidisciplinary methodologies that include detailed geological mapping, geophysical and seismological data processing using innovative methods and geodetic data processing, involved in surveying at various scales. The data and results from these studies are merged with existing or updated datasets to compose the new Seismotectonic Atlas of Greece. The main objective of the Atlas is to harmonize and integrate the most recent seismological, geological, tectonic, geophysical and geodetic data in an interactive, online GIS environment. To demonstrate the wealth of information available in the end product, herein, we present thematic layers of important seismotectonic and geophysical content, which facilitates the comprehensive visualization and first order insight into seismic and other risks of the Greek territories. The future prospect of the Atlas is the incorporation of tools and algorithms for joint analysis and appraisal of these datasets, so as to enable rapid seismotectonic analysis and scenario-based seismic risk assessment.
Highlights
From a geodynamics point of view, Greece and its surrounding areas constitute the most active region of the eastern Mediterranean and, of Europe [1,2,3,4,5,6,7,8,9,10,11]
Arc bounds dense shallow seismicity to its west and sparser one, mainly subcrustal to the east. This area is suggested to be related to a STEP fault beneath the western coast of the south Anatolian plate, separating the Hellenic Subduction Zone (HSZ) from the western Cyprus Subduction Zone (CSZ) [80,90,91,92,93], or horizontal tearing of the slab that likely explains the presence of a NW dipping slab [94]
We developed the first version of the new Seismotectonic Atlas of Greece, in order to build a comprehensive inventory and reference source up-to-date data, which will be in useful into a variety
Summary
From a geodynamics point of view, Greece and its surrounding areas constitute the most active region of the eastern Mediterranean and, of Europe [1,2,3,4,5,6,7,8,9,10,11]. Research in 1989 [14].geophysical, it geodetic is imperative to update the an extensive body of geological, tectonic, seismological, and volcanological map, given that an extensive and bodydozens of geological, tectonic, seismological, geodetic information has since been accumulated of significant earthquakes have geophysical, occurred. The complexity of the contemporary geodynamics setting of Greece has been subjected to continuous and intense study by our research group during the last two decades, in which continuous and intense study methodologies by our research group during last of two decades, in which multidisciplinary state-of-the-art were applied to thethe analysis tectonic, seismological, multidisciplinary state-of-the-art methodologies were The applied to ofthe analysis of the tectonic, geophysical and volcanological problems at various scales. We present the first edition of the new Seismotectonic Atlas of Greece, which is composed of a set of thematic maps to be used in earthquake and volcanic hazard assessment. The thematic layers, together with tables containing quantified descriptions of critical parameters, are accessible at http://www.geophysics.geol.uoa.gr/atlas.html
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