Abstract
The study region is the most important seismic region of Romania when we refer to the crustal seismicity as a source of seismic hazard. So far there have been recorded 91 seismic events that produced significant effect in buildings (Io ≥ 6 EMS), some of them resulting in severe damage and even casualties (Io ≥ 7 EMS). In this paper we modelled the seismogenic sources in the region using a new seismotectonic model constructed on new earthquakes and focal mechanisms catalogues basis. This model was elaborated starting from the relationship between geology and historical and instrumental seismicity and then it was better constrained by geophysical, neotectonic, geodetic data and particularly by active stress field features. The stress tensor parameters and the stress regime have been determined by formal inversion of the focal mechanisms solutions. Our study provides evidence of at least seven different deformation domains with different tectonic regimes as a realistic support for assessing the seismogenic potential of the geological structures. Each seismogenic source is characterized by completeness magnitude (Mcomp), maximum probable magnitude (Mmax) and magnitude—recurrence parameters. The probabilistic hazard maps produced in terms of PGA using the new seismic sources highlights the importance of their configuration on the hazard parameter values and their spatial distribution.
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References
Ardeleanu L, Leydecker G, Bonjer K, Busche H, Kaiser D, Schmitt R (2005) Probabilistic seismic hazard map for Romania basis for new building code. Nat Hazards Earth Syst Sci 5:679–684
Bada G, Horvath F, Doveny P, Szafian P, Windhoffer G, Cloetingh S (2007) Present-day stress field and tectonic inversion in the Pannonian basin. Glob Planet Change 58:165–180
Bala A, Raileanu V, Dinu C, Diaconescu M (2015) Crustal seismicity and active fault systems in Romania. Romanian Rep Phys 67(3):1176–1191
Basili R, Valensise G, Vannoli P et al (2008) The Database of Individual Seismogenic Sources (DISS) version 3: summarizing 20 years of research on Italy’s earthquake geology. Tectonophysics 453:20–43
Ciobanu CL, Cook NJ, Stein H (2002) Regional setting and geochronology of the late cretaceous banatitic magmatic and metallogenetic belt. Mineral Deposita 37:541–567
Ciulavu D, Dinu C, Szakacs A, Dordea D (2000) Neogene kinematics of the Transylvanian basin (Romania). AAPG Bull 84(10):1589–1615
Delvaux D, Sperner B (2003) Stress tensor inversion from fault kinematic indicators and focal mechanism data: the TENSOR program. In: Nieuwland D (ed) New insights into structural interpretation and modelling, vol 212. Geological Society London Special Publication, pp 75–100
Grünthal G, Wahlström R, Stromeyer D (2013) The SHARE European Earthquake Catalogue (SHEEC) for the time period 1900–2006 and its comparison to the European-Mediterranean Earthquake Catalogue (EMEC). J Seismolog 17(4):1339–1344
Horvath F, Csontos L, Dovenyi P, Fodor L, Greneczy G, Sikhegyi F, Szafian P, Szekely B, Timar G, Toth L, Toth T (2006) A Pannon-medence jelenkori geodinamikajanak atlasza: Euro-konform terkepsorozat es magyareze. Magyar Geofizica 47:133–137
Institutul Geologic Roman (1968) Harta Geologica a Romaniei. scale 1:200 000
Kijko A (2004) Estimation of the maximum magnitude. Pure appl Geophys 161:1655–1681
Moldovan IA, Popescu E, Constantin A (2008) Probabilistic seismic hazard assessment in Romania: application for crustal seismic active zones. Rom J Phys 53(3–4):575–591
NATO SfP Project 983054 (2011) Harmonization of seismic hazard maps for the Western Balkan Countries (BSHAP). Final report; http://www.msb.gov.ba/dokumenti/AB38745. Last Accessed 17.07.2017
Oncescu MC, Marza V, Rizescu M, Popa M (1999) The Romanian earthquakes catalogue, 984-1997. In: Wenzel Lungu (ed) Vrancea earthquakes: tectonics, hazard mitigation. Kluwer Publication, The Netherlands, pp 43–47
Ordaz M, Aguilar A, Arboleda J (2007) Crisis program for computing seismic hazard. Instituto de Ingeneria, UNAM, Mexico
Oros E (2011) Researches about seismic hazard for Banat Region. PhD dissertation, University of Bucharest
Oros E, Diaconescu M (2015) Recent vs. historical seismicity analysis for banat seismic region. Math Model Civ Eng 11(1):24–32. https://doi.org/10.1515/mmce-2015-0001
Oros E, Oros V (2009) New and updated information about the local hazard seismic sources in the Banat Seismic Region. In UTCB (ed) Hazard, vulnerability and risk. 4th national conference of earthquake engineering, vol 1, pp 133–139. CONPRESS, Bucharest, October 2009
Oros E, Popa M, Moldovan IA (2008a) Seismological database for banat seismic region (Romania)—part 1: the parametric earthquake catalogue. Rom J Phys 53(7–8):955–964
Oros E, Popa M, Moldovan IA, Popescu M (2008b) Seismological database for banat seismic region (Romania) - Part 2: the catalogue of the focal mechanism solutions. Rom J Phys 53(7–8):965–977
Oros E, Popa M, Ghita C, Rogozea M, Rau-Vanciu A, Neagoe C (2016) Catalogue of focal mechanism solutions for crustal earthquakes in intra-carpathian region of Romania. Paper presented at the 35th General Assembly of the European Seismological Commission, Italy, 24–11 Sept 2016
Oros E, Constantinescu EG, Diaconescu M, Popa M (2017) Stress field, seismicity and seismotectonic features in the Apuseni Mts area. In: Proceedings of 17th International Scientific GeoConference SGEM 2017, Science and technologies in geology, exploration and mining, Issue 14. Appl Environ Geophys Oil Gas Explor 17:421–428
Polonic G (1985) Neotectonic activity at the eastern border of the Pannonian depression and its seismic implications. Tectonophysics 47:109–115
Radulian M, Mandrescu N, Panza GF, Popescu E, Utale A (2000) Characterization of seismogenic zones of Romania. Pure Appl Geophys 157:57–77
Reiter L (1991) Earthquakes hazard analysis: issues and insights. Colombia University Press, New York
Sandulescu M (1984) Geotectonica Romaniei. Tehnical Publishing House, Bucharest
Scholz CH (2015) On the stress dependence of the earthquake b value. Geophys Res Lett 42:1399–1402. https://doi.org/10.1002/2014GL062863
Simeonova SD, Solakov DE, Leydecker G, Busche H, Schmitt T, Kaiser D (2006) Probabilistic seismic hazard map for Bulgaria as a basis for a new building code. Nat Haz Earth Syst Sci 6:881–887
Stucchi M, Rovida A, Gomez Capera AA et al (2013) The SHARE European Earthquake Catalogue (SHEEC) 1000–1899. J Seismol 17:523–544
Wells DL, Coppershmith KJ (1994) New empirical relationships among magnitude, rupture length, width, area and displacement. Bull Seismol Soc Am 84(4):974–1002
Wiemer S (2001) Software package to analyse seismicity: ZMAP. Seismol Res Lett 72:374–383
Wiemer S, Gerstenberger MC, Hauksson E (2002) Properties of the 1999, Mw7.1, Hector Mine earthquake: implications for aftershock hazard. Bull Seismol Soc Am 92:1227–1240
Zaharia B, Oros E, Popa M, Radulian M (2010) Tomographic research in Banat area using local earthquake data. Paper presented at the 32nd General Assembly of ESC, Montpellier, France, 6–10 Sept 2010
Zaharia B, Grecu B, Popa M, Oros E, Radulian M (2017) Crustal structure in the western part of Romania from local seismic tomography. Paper presented at the world multidisciplinary earth sciences symposium, WMESS 2017, Praga, Czech Republic, 11–15 Sept 2017
Zugravescu D, Polonic G (1997) Geodynamic compartments and present-day stress state on the Romanian territory. Revue Roumaine de Geophysique 41:3–24
NATO SfP Project 983054 (2011) Harmonization of seismic hazard maps for the Western Balkan Countries (BSHAP). Final report. http://www.msb.gov.ba/dokumenti/AB38745. Last Accessed 17.07.2017
Acknowledgements
This paper was carried out within Nucleu Program supported by ANCSI, partly the Project 30°N/27.02.2009/PN 09 30–01 06 and partly Project PN 16 35 01 05 and PN 16 35 01 12.
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Oros, E., Popa, M., Diaconescu, M. (2018). The Seismogenic Sources from the West and South-West of Romania. In: Vacareanu, R., Ionescu, C. (eds) Seismic Hazard and Risk Assessment. Springer Natural Hazards. Springer, Cham. https://doi.org/10.1007/978-3-319-74724-8_4
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