Towards a seismotectonic map of Bulgaria
| Autor: | Piccardi L.(1), Dobrev N.(2), Moratti G.(1), Corti G.(1), Vannucci G.(3), Matova M.(2) |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Congresso congiunto SIMP-SGI-So.Ge.I.-AIV "Il pianeta dinamico: sviluppi e prospettive a 100 anni da Wegener", pp. 454–454, Firenze, Italy, 2-4 Settembre 2015 info:cnr-pdr/source/autori:Piccardi L.(1), Dobrev N.(2), Moratti G.(1), Corti G.(1), Vannucci G.(3), Matova M.(2)/congresso_nome:Congresso congiunto SIMP-SGI-So.Ge.I.-AIV "Il pianeta dinamico: sviluppi e prospettive a 100 anni da Wegener"/congresso_luogo:Firenze, Italy/congresso_data:2-4 Settembre 2015/anno:2015/pagina_da:454/pagina_a:454/intervallo_pagine:454–454 |
| Popis: | Several large earthquakes reaching up to M>7 have affected Bulgaria, and testify a significant active tectonics whose associated seismicity threatens large portions of the territory. A detailed knowledge of the main active faults and the understanding of the current tectonic activity and seismicity is therefore fundamental to get a comprehensive picture of the seismotectonics of the region. We have undertaken a study based on field survey, seismicity and paleostress analysis, remote sensing and digital topography interpretation, and integrated this information in a comprehensive map of active faults. This exhaustive dataset provides fundamental information on the state of stress and the seismic proneness of different areas, and represents a first valuable step toward the elaboration of a complete and actualized seismotectonic map of Bulgaria. This has obvious implication for the study of seismic hazard, urban planning and civil protection and gives basic information to the knowledge of the active deformation and geodynamics of the region. Few examples highlight the information that can be derived from such a seismotectonic map. Southern Bulgaria, south of the Balkan mountains, is mainly affected by normal active faults, which accommodate a roughly N-S to NNE-SSW extension, which is likely related to the northern extent of the Aegean extensional system. Activity of these extension-related structures is responsible for some of the destructive earthquakes which affected Bulgaria in historical times, notably the 1904 Krupnik earthquake (7.2 |
| Databáze: | OpenAIRE |
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