Is earthquake activity along the French Atlantic margin favoured by local rheological contrasts?

Comptes Rendus - Geoscience

Volumn 345, Issue 9-10, 2013, Pages 373-382

  Mazabraud, Yves ^b   Béthoux, Nicole ^a   Delouis, Bertrand ^a  

^a UNIVERSITÉ DE NICE SOPHIA ANTIPOLIS   (France)

^b UNIVERSITÉ DES ANTILLES ET DE LA GUYANE   (France)

Author keywords

Seismicity of French Atlantic margin; Source study; Stress field; Stress permutation; Thermo mechanical modelling

Indexed keywords

CONTINENTAL MARGIN; DEFORMATION MECHANISM; EARTHQUAKE HYPOCENTER; EARTHQUAKE MAGNITUDE; EARTHQUAKE MECHANISM; EARTHQUAKE RUPTURE; EXTENSIONAL TECTONICS; FINITE ELEMENT METHOD; NUMERICAL MODEL; RHEOLOGY; SEISMICITY; SHEAR ZONE; STRESS FIELD;

ATLANTIC OCEAN; CHARENTE MARITIME; FRANCE; OLERON ISLAND; POITOU-CHARENTES;

EID: 84888006824     PISSN: 16310713     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.crte.2013.07.004     Document Type: Article

References (26)

1. Arroucau P. Sismicité du Massif armoricain: relocalisation et interprétation tectonique 2006, 194p. (Thèse de doctorat), Université de Nantes, Nantes.
2. Bakun W.H., Scotti O. Regional intensity attenuation models for France and the estimation of magnitude and location of historical earthquakes. Geophys. J. Int. 2006, 164:596-610.
3. Bergerat F., Plateaux R. Architecture and development of (Pliocene to Holocene) faults and fissures in the East Volcanic zone of Iceland. C. R. Geoscience 2012, 344:191-204.
4. Bitri A., Ballèvre M., Brun J.P., Chantraine J., Gapais D., Guennoc P., Gumiaux C., Truffert C. Seismic imaging of the Hercynian collision zone in south-eastern Armorican Massif (Armor2 project - Géofrance3D program). C. R. Geoscience 2003, 335:969-979.
5. Campillo M., Plantet J.L., Bouchon M. Frequency dependant attenuation in the crust beneath central France from Lg waves: data analysis and modeling. Bull. Seismol. Soc. Am. 1986, 75:1395-1411.
6. Chery J., Zoback M.D., Hassani R. An integrated mechanical model of the San Andreas fault in central and northern California. J. Geophys. Res. 2001, 106:22051-22066.
7. Delouis B., Legrand D. Focal mechanism determination and identification of fault plane of earthquakes using only one or two near-source seismic recordings. BSSA 1999, 89:1558-1574.
8. Delouis B., Haessler H., Cisternas A., Rivera L. Stress tensor determination in France and neighbouring regions. Tectonophysics 1993, 221:413-437.
9. Delouis B., Charlety C., Vallée M. Fast determination of earthquake source parameters from strong motion records: Mw, focal mechanism, and slip distribution. Geophys. Res. Abstr. 2008, 10. (EGU2008-A-04939, SRef-ID: 1607-7962/gra/EGU2008-A-04939, EGU General Assembly, [EGU abstract]).
10. Delouis B., Charlety C., Vallée M. A method for rapid determination of moment magnitude Mw, for moderate to large earthquakes, from the near field spectra of strong motion records (MWSYNTH). BSSA 2009, 3:1827-1840.
11. Drouet S., Chevrot S., Cotton F., Souriau A. Simultaneous inversion of source spectra, attenuation parameters and site responses: application to the data of the French accelerometric network. Bull. Soc. Seismol. Am. 2008, 98(1):198-219.
12. Golke M., Coblentz D. Origin of the European regional stress field. Tectonophysics 1996, 266:11-24.
13. Grollimund B., Zoback M. Did glaciation trigger intraplate seismicity in the New Madrid seismic zone?. Geology 2001, 29:175-178.
14. Hu J.C., Angelier J. Stress permutations: Three-dimensional distinct element analysis accounts for a common phenomenon in brittle tectonics. J. Geophys. Res. 2004, 109(B9):1-20.
15. Ledru P. L'imagerie géologique et géophysique 3D du sous-sol de la France. Mem. Soc. géol. France 1997, 172:53-71.
16. Lefort J.P. Image globale de la croÛte continentale française. Bull. Centr. Rech. Explor. Prod. Elf Aquitaine 1993, 17(1):5-15.
17. LenÔtre L., Thierry P., Blandin R. Current vertical movements demonstrated by comparative levelling in Brittany (northwestern France). Tectonophysics 1999, 301:333-344.
18. Lucazeau F., Vasseur G. Heat flow density data from France and surrounding margins. Tectonophysics 1989, 164:251-258.
19. Mazabraud Y., Béthoux N., Guilbert J., Bellier O. Short scale stress determination in central and western France, an intraplate slow deforming region. Geophys. J. Int. 2005, 160:161-178.
20. Mazabraud Y., Béthoux N., Deroussi S. Characterisation of seismological pattern in an intraplate slow deforming region: central and western France. Tectonophysics 2005, 409:175-192.
21. Nicolas M., Santoire J.P., Delpech P.Y. Intraplate seismicity: new seismotectonic data in Western Europe. Tectonophysics 1990, 179:27-53.
22. Nocquet J.M. Present-day kinematics of the Mediterranean: a comprehensive overview of GPS results. Tectonophysics 2012, 579:220-242.
23. w=4.3 Lorient earthquake sequence: a multidisciplinary approach to the geodynamics of the Armorican Massif, westernmost France. Geophys. J. Int. 2005, 162:935-950.
24. Reasenberg P., Oppenheimer D. FPFIT, FPPLOT and FPPAGE: Fortran computer programs for calculating and displaying earthquake fault-plane solutions. U. S. Geol. Surv. Open File Rep. 1985, 85-739.
25. Vernant P., Chéry J. Mechanical modeling of oblique convergence in the Zagros. Iran. Geophys. J. Int. 2006, 165:991-1002.
26. Waldhauser F., Ellsworth W.L. A double-difference earthquake location algorithm: Method and application to the northern Hayward fault. Bull. Seismol. Soc. Am. 2000, 90:1353-1368.