Advertisement

Journal of Seismology

, Volume 8, Issue 1, pp 41–56 | Cite as

Use of microtremor measurement for assessing site effects in Northern Belgium – interpretation of the observed intensity during the MS = 5.0 June 11 1938 earthquake

  • F. Nguyen
  • G. Van Rompaey
  • H. Teerlynck
  • M. Van Camp
  • D. Jongmans
  • T. Camelbeeck
Article

Abstract

To provide quantitative information on site effects in the northern part of Belgium, forty-seven H/V microtremor measurements were performed with 5 second seismometers over an area of about 15.000 km2. Most of the results show a northward regular increase of the fundamental period in agreement with the augmentation of the Mesozoic and Cainozoic soft sedimentsthickness from a few meters 40 km south of Brussels to 900 m at the Netherlands-Belgium border. The measured resonance frequency values wereconsistent with theoretical computations performed at different sites onthe basis of existing information and shallow seismic experiments. At oneparticular site (Uccle) where borehole data were available, microtremor measurements using an array of four seismological stations with differentapertures allowed to obtain the low frequency part of the Rayleigh wave dispersion curve, extending the range covered by the analysis of surfacewaves artificially generated. The Vs profile derived from the surface waveinversion corroborates the 1 Hz natural frequency of the site. Comparison of these results with the macroseismic information concerning the MS = 5.0 1938 earthquake which occurred 50 km west of Brussels,confirmed the hypothesis that the geological structure of the Brabant massifis likely to control damage distribution during such an earthquake. Comparisonbetween the intensity map of the 1938 earthquake and the resonance period ofsediments obtained by our microtremor study shows a clear relation betweenthe two parameters. During the 1938 earthquake, site effects played a prominent role due to the dimension of the source whose corner frequency wasabout 1 Hz.

1938 dispersion curve H/V microtremor Nakamura site effects surface waves inversion 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Ahorner, L., 1975, Present-day stress field and seismotectonic block movements along major fault zones in Central Europe, Tectonophysics 29, 233–249.Google Scholar
  2. Aki, K., 1957, Space and time spectra of stationary stochastic waves with special reference to microtremors, Bull. Earthq. Res. Inst. 35, 415–456.Google Scholar
  3. Ambraseys, N.N., Simpson, K.A. and Bommer, J.J., 1996, Prediction of horizontal response spectra in Europe, Earthquake Engineering and Structural Dynamics 25, 371–400.Google Scholar
  4. Bard, P-Y., 1999, Microtremor measurements: a tool for site effect estimation? Proc. 2nd Int Symp. on the Effects of Surface Geology on Seismic Motion, Yokohama, Japan, 1–3 December 1998, pp. 1251–1279.Google Scholar
  5. Bettig, B., Bard, P.-Y., Scherbaum, F., Riepl, J., Cotton, F., Cornou, C. and Hatzfeld, D., 2001, Analysis of Dense Array Noise Measurements using the Modified Spatial Auto-correlation Method (SPAC). Application to the Grenoble Area, Bolettino di Geofisica Teorica ed Applicata, submitted.Google Scholar
  6. Boore, D.M., 1996, SMSIM-Fortran Programs for Simulating Ground Motions from Earthquakes: version 1.0. U.S. Geol. Surv., Open-File Report. 96-80-A.Google Scholar
  7. Camelbeeck, T., 1994, Mécanisme au foyer des tremblements de terre et contraintes tectoniques: le cas de la zone intraplaque belge, PhD-Thesis, Observatoire Royal de Belgique, série Géophysique, hors série.Google Scholar
  8. Camelbeeck, T., Alexandre, P., Vanneste, K. and Meghraoui, M., 2000, Long-term seismicity in regions of present day low seismic activity: the example of western Europe, Soil Dyn. Earthq. Engrg. 20, 405–414.Google Scholar
  9. Colbeaux, J.P., 1977, Géométrie et cinématique de la fracturation dans le Nord de la France, Bull. B.R.G.M. (2) section IV, 4, 339–355.Google Scholar
  10. Defaut, C. and Deneyer, A., 1999, Contribution à l'étude de stabilité de l'église ST-Gery de Boussu, Travail de fin d'étude, Faculté Polytechnique de Mons, 116 pp.Google Scholar
  11. Delgado, J., Lopez Casado, C., Estevez, A., Giner, J., Cuenca, A. and Molina, S., 2000, Mapping soft soils in the Segura river valley (SE Spain): A case of study of microtremors as an exploration tool, J. Appl. Geophys. 45, 19–32.Google Scholar
  12. De Vos, W., Chacksfield, B.C., D'Hooge, L., Dusar, M., Lee, M.K., Poitevin, C., Royles, C.P., Vandenborgh, J., Van Eyck, J. and Verniers, J., 1993, Image-based Display of Belgian Digital Aeromagnetic and Gravity Data, Service Géologique de Belgique, Professional Paper, 263.Google Scholar
  13. Duval, A.-M., Mèneroud, J.-P, Vidal, S. and Singer, A., 1998, Relation between Curves obtained from Microtremor and Site Effects observed after Caracas 1967 Earthquake, 11th European Conference on Earthquake Engineering, Balkema, Rotterdam (CD-ROM).Google Scholar
  14. Geluk, M.C., Duin, E.J.TH., Dusar, M., Rijkers, R.H.N., Van Den Berg, M.W. and Van Rooijen, P., 1994, Stratigraphy and tectonics of the Roer Valley Graben, Geologie en Mijnbouw.Google Scholar
  15. Giampiccolo, E., Gresta, S., Mucciarelli, M., De Guidi, G. and Gallipoli, M.R., 2001, Site response in the city of Catania (Eastern Sicily) from microtremor measurements, Annali di Geofisica 44(1), 1–11.Google Scholar
  16. Grünthal, 1998, European Macroseismic Scale 1998, Cahiers du Centre Européen de Géodynamique et de Séismologie vol. 15, 99 pp.Google Scholar
  17. Gueguen, Ph., Chatelain, J.-L., Guillier, B., Yepes, H. and Egred, J., 1998, Site effect and damage distribution in Pujili (Ecuador) after the 28 March 1996 earthquake, Soil Dyn. Earthq. Engrg. 17, 329–334.Google Scholar
  18. Herrmann, R., 1987, Computer programs in Seismology, Vol. VI, Saint Louis University.Google Scholar
  19. Ibs-von Seht, M. and Wohlenberg, J., 1999, Microtremor measurements used to map thickness of soft sediments, Bull. Seism. Soc. Am. 89(1), 250–259.Google Scholar
  20. Jongmans, D., 1992, The application of seismic methods for dynamic characterization of soils in earthquake engineering, Bull. Int. Assoc. Engrng. Geol. 46, 63–69.Google Scholar
  21. Karnik, 1969, Seismicity of the European Area-Part 1., D. Reidel Publishing Company, Dordrecht, Holland, 364 pp.Google Scholar
  22. Kennett, B.L.N., 1983, Seismic Wave Propagation in Stratified Media, Cambridge University Press, Cambridge.Google Scholar
  23. Legrand, R., 1968, Le Massif du Brabant, Mémoires pour servir à l'explication des cartes géologiques et minières de la Belgique 9, 148 pp.Google Scholar
  24. Leynaud, D., Jongmans, D., Teerlynck, H. and Camelbeeck, T., 2000, Seismic hazard assessment in Belgium, Geologica Belgica 3(1–2), 67–86.Google Scholar
  25. Melville, C., Levret, A., Alexandre, P., Lambert, J. and Vogt, J., 1996, Historical seismicity of the Strait of Dover-Pas de Calais, Terra Nova 8, 626–647.Google Scholar
  26. Mihailov, V., Dojcinovski, Talaganov, Camelbeeck, T. and Verbeiren, R., 2001, Seismic hazard analysis and mapping of Belgium, Publications de l'Observatoire Royal de Belgique, séries Géophysiques, in press.Google Scholar
  27. Mucciarelli, M. and Monachesi, G., 1998, A quick survey of local amplifications and their correlation with damage observed during the Umbro-Marchesan (Italy) earthquake of September 26, 1997, Earthq. Engrng. 2(2), 1–13.Google Scholar
  28. Nakamura, Y., 1989, A method for dynamic characteristics estimation of subsurface using microtremors on the ground surface, Quat. Rep. Railway Techn. Res. Inst. 30, 25–33.Google Scholar
  29. Somville, 1939, Le tremblement de terre belge du 11 juin 1938, Publication de l'Observatoire Royal de Belgique, Imprimerie Duculot, Gembloux, 16 pp.Google Scholar
  30. Teves-Costa, P., Costa Nunes, J.A., Senos, L., Oliveira, C.S. and Ramalhete, D., 1995, Predominant frequencies of soil formations in the town of Lisbon using microtremor measurements, Proc. 5th Int. Conf. On Seismic zonation, October 17–19, 1683–1690.Google Scholar
  31. Trifunac, M.D. and Todorovska, M.I., 2000, Long period microtremors, microseisms and earthquake damage: Northridge, CA, earthquake of 17 January 1994, Soil Dyn. Earthq. Engrng. 19(4), 253–267.Google Scholar

Copyright information

© Kluwer Academic Publishers 2004

Authors and Affiliations

  • F. Nguyen
    • 1
  • G. Van Rompaey
    • 2
  • H. Teerlynck
    • 1
  • M. Van Camp
    • 2
  • D. Jongmans
    • 3
    • 1
  • T. Camelbeeck
    • 2
  1. 1.Laboratory of Engineering Geology and Applied GeophysicsLiège UniversityLiègeBelgium
  2. 2.Royal Observatory of BelgiumBruxellesBelgium
  3. 3.LIRIGM, Grenoble UniversityFrance

Personalised recommendations