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Testing the Macroseismic Intensity Attenuation Laws for Vrancea Intermediate Depth Earthquakes

  • Maria-Marilena Rogozea
  • Iren Adelina Moldovan
  • Angela Petruta Constantin
  • Elena Florinela Manea
  • Liviu Marius Manea
  • Cristian Neagoe
Conference paper
Part of the Springer Natural Hazards book series (SPRINGERNAT)

Abstract

The Vrancea seismic region, located at the bending area of the South–Eastern Carpathians in Romania, is the most active zone of seismicity in Europe, producing earthquakes at intermediate depths (60–200 km). The major events (magnitude above 7) are generated at intermediate depth and produce specific patterns of damage over extended areas. In this study we test the macroseismic intensity attenuation laws, using the intensity data point (IDPs) for 8 intermediate depth earthquakes that occurred in Vrancea (between 1738 and 2000). The macroseismic attenuation laws used for testing were Moldovan (Metode si modele statistice in seismologie. Editura Morosan, Bucuresti, pag 236, 2007), Sorensen et al. (Soil Dyn Earthq Eng, 2010), Vacareanu et al. (Macroseismic intensity prediction earthquake for Vrancea intermediate-depth seismic source. Hazards, Nat, 2015). The main purpose of the testing is to determine the best attenuation law that will be used to estimate the expected macroseismic intensity at different sites, and to further use them in the assessment of the seismic hazard and risk of the country and to design the real time shake maps. In conclusion, we have decided that Moldovan (Metode si modele statistice in seismologie. Editura Morosan, Bucuresti, pag 236, 2007) is the best intensity attenuation law for earthquakes located around 90 km depth (the events from March 4, 1977 and May 30, 1990), Sørensen et al. (Soil Dyn Earthq Eng, 2010) law is the best for modelling the macroseismic field due to earthquakes from the lower segment, located around 130 km depth (events from November 10, 1940 and August 30, 1986). For epicentral distances larger than 300 km, Vacareanu et al. (Macroseismic intensity prediction earthquake for Vrancea intermediate-depth seismic source. Hazards, Nat, 2015) law fits best the intensity distribution.

Keywords

Vrancea region Intensity data point Macroseismic intensity Macroseismic attenuation laws 

Notes

Acknowledgements

This paper was partially carried out within Nucleu Program, supported by ANCSI, projects no. PN 16 35 01 06, PN 16 35 01 09, PN 16 35 03 01 and the Partnership in Priority Areas Program—PNII, under MEN-UEFISCDI, DARING Project no. 69/2014, and project: Disaster risk assessment at national level- RO-RISK.

References

  1. Ardeleanu L, Leydecker G, Bonjer K-P, Busche H, Kaiser D, Schmitt T (2005) Probabilistic seismic hazard map for Romania as a basis for a new building code. Nat Hazards Earth Syst Sci 5:679–684CrossRefGoogle Scholar
  2. Demetrescu G (1941) Determination provisoire de l’ épicentre du trem-blement de terre de Roumanie du 10 Novembre 1940. Observatoire de Bucuresti, Station sismique, p 10Google Scholar
  3. Glavcheva R (1983) Impacts on PR Bulgaria, 178–187. In: Brankov G (ed) Vrancea earthquake in 1977, its after-effects in the People’s Republic of Bulgaria, Earthquake Engineering National Committee, Bulgarian Academy of Sciences, Sofia, 428 ppGoogle Scholar
  4. Grigorova E, Glavtcheva R, Sokerova D (1978) The earthquake on March 4, 1977—some results of seismic observations in Bulgaria. In: Proceedings of the symposium on the analysis of seismicity and on seismic risk, Liblice, October 1977, pp 109–113Google Scholar
  5. Kronrod T, Radulian M, Panza G, Popa M, Paskaleva I, Radovanovich S, Gribovszki K, Sandu I, Pekevski L (2013) Integrated transnational macroseismic data set for the strongest earthquakes of Vrancea (Romania). Tectonophysics.  https://doi.org/10.1016/j.tecto.2013.01.019 Google Scholar
  6. Leydecker G, Busche H, Bonjer K-P, Schmitt T, Kaiser D, Simeonova S, Solakov D, Ardeleanu L (2008) Probabilistic seismic hazard in terms of intensities for Bulgaria and Romania—updated hazard maps. Nat Hazards Earth Syst Sci 8:1–9CrossRefGoogle Scholar
  7. Lungu D, Zaicenco A, CorneaT, van Gelder P (1997) Seismic hazard: recurrence and attenuation of subcrustal (60–170 km) earthquakes. Struct Saf Reliab 7:1525–1532Google Scholar
  8. Marza VI, Pantea AI (1995) Probabilistic estimation of seismic intensity attenuation for Vrancea (Romania) subcrustal sources. In: Proceedings of XXIV General Assembly of the E.S.C., 19–24 Sep 1994, vol III, Athens, Greece, pp 1752–1761Google Scholar
  9. Medvedev SV, Sponheuer W, Karnik V (1964) Neue seismic Skala (Intensity scale of earthquakes), 7. Tagung der Europaischen Seismologischen Kommission vom 24.9. bis 0.9.1962 in Jena, Veroff. Insttite fur Bodedynamik und Erdbebenforschunh in Jena 77, 69-6. MedvedevGoogle Scholar
  10. Moldovan IA, Enescu BD, Ionescu C (2000) Predicting peak ground horizontal acceleration for vrancea large earthquakes using attenuation relations for moderate shocks. Rom J Phys 45(9–10):785–800Google Scholar
  11. Moldovan IA (2007) Metode si modele statistice in seismologie, pag 236. Editura Morosan, BucurestiGoogle Scholar
  12. Oncescu MC, Marza VI, Rizescu M, Popa M (1999) The Romanian earthquake catalogue between 1984–1997. In: Wenzel F, Lungo D, Novack O (eds) Vrancea earthquakes: tectonics, hazard and risk mitigation, Kluwer Academic Publishers, Dordrecht, pp 43–47Google Scholar
  13. Pantea A (1994) Macroseismic intensity attenuation for crustal sources on Romanian territory and adjacent areas. Nat Hazards 10:65–72CrossRefGoogle Scholar
  14. Pantea A, Moldovan IA (2000) Attenuation relationships using macroseismic intensity curves. Part I. Crustal earthquakes from Fagaras and adjacent zones. Rom J Phys 45(7–8):615–631Google Scholar
  15. Radu C, Radulescu D, Sandi H (1990) Some data and considerations on recent strong earthquakes of Romania, cahier technique, 3. AFPS, Paris, pp 19–31Google Scholar
  16. Radu C, Utale A (1989) A new version of the March 4, 1977 Vrancea earthquake (in Romanian), Report CEPS, theme 30.86.3/1989, II, A4, 31–32, BucharestGoogle Scholar
  17. Rogozea M (2016) Impactul cutremurelor majore din Romania: trecut, present si viitor. Editura Electra, BucurestiGoogle Scholar
  18. Rogozea M, Marmureanu Gr, Radulian M, Toma D (2014) Reevaluation of the macroseismic effects of the 23 January 1838, Vrancea earthquake. Romania Report in Physics 66Google Scholar
  19. Rogozea M, Radulian M, Marmureanu Gh, Mandrecu N, Paulescu D (2013) Large and moderate historical earthquakes of 15th and 16th centuries in Romania reconsidered, Romanian reports in physics, vol 65Google Scholar
  20. Sokolov V, Bonjer KP, Wenzel F, Grecu B, Radulian M (2008) Ground-motion prediction equations for the intermediate depth Vrancea (Romania) earthquakes Bulletin of Earthquake Engineering, vol 6, pp 367–388Google Scholar
  21. Sørensen MB, Stromeyer D, Grunthal G (2008) Estimation of macroseismic intensity—new attenuation and intensity versus ground motion relations for different parts of Europe. In: Proceedings of the 14th world conference on earthquake engineering 12–17 Oct 2008, Beijing, ChinaGoogle Scholar
  22. Sørensen MB, Stromeyer D, Grunthal G (2010) A macroseismic intensity prediction equation for intermediate depth earthquakes in the Vrancea region, Romania. Soil Dyn Earthq Eng.  https://doi.org/10.1016/j.soildyn,2010.05.009
  23. Vacareanu R, Iancovici M, Neagu C, Pavel F (2015) Macroseismic intensity prediction earthquake for Vrancea intermediate-depth seismic source. Hazards, Nat.  https://doi.org/10.1007/s11069-015-1994-y Google Scholar
  24. Zsiros T (1996) Macroseismic focal depth and intensity attenuation in the Carpathian region. Acta Geod Geophys Hung 31(1–2):115–112Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Maria-Marilena Rogozea
    • 1
  • Iren Adelina Moldovan
    • 1
  • Angela Petruta Constantin
    • 1
  • Elena Florinela Manea
    • 1
  • Liviu Marius Manea
    • 1
  • Cristian Neagoe
    • 1
  1. 1.National Institute for Earth PhysicsMagureleRomania

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