1887
  1. Home
  2. Conferences
  3. Conference Proceedings
  4. Near Surface Geoscience 2014 - 20th European Meeting of Environmental and Engineering Geophysics
  5. Conference paper

Abstract

SUMMARY

An application of HVSR inversion is presented in order to verify the effectiveness of this technique for purposes of geological reconstruction of the subsoil finalized to studies of seismic microzonation of heavily urbanized areas, where few stratigraphic and geophysical constraints are available and most of the information are derived from the geological maps. In such cases the uncertainty of the results is is enhanced by doubts on the nature of the H/V peaks, not always caused by stratigraphic discontinuities, and to the subjective choices done especially in the step of signal preprocessing.

The investigated area (Altavilla Milicia, Sicily) includes the town center and the adjacent coastal plain, characterized mainly by outcrops of marine terraces and continental Pleistocene deposits that do not indicate directly the oldest geological formations, which, however, outcrop in the surrounding areas. However in order to constrain the inversion of the HVSR curves we uses only the detailed knowledge of the geological formations outcropping in the surrounding area and of the tectonic history, together with the typical seismic velocity of the formation outcropping in the area. In spite of this two geological sections have been constructed, showing the main pattern of geological formations and tectonic structures.

© EAGE Publications BV
Loading

Article metrics loading...

/content/papers/10.3997/2214-4609.20142094
2014-09-08
2024-04-25

  • From This Site

    /content/papers/10.3997/2214-4609.20142094
    dcterms_title,dcterms_subject,pub_keyword
    -contentType:Journal -contentType:Contributor -contentType:Concept -contentType:Institution
    10
    5
Loading full text...

Full text loading...

References

  1. Catalano, R., Avellone, G, Basilone, L., Contino, A. and AgateM.
    [2013] Note illustrative della Carta Geologica d’Italia del foglio 595 “Palermo” e carta geologica, scala 1:50.000. Regione Siciliana-Ispra.
     [Google Scholar]
  2. Di Stefano, P., Luzio, D., Renda, P., Martorana, R., Capizzi, P., D’Alessandro, A., Messina, N., Napoli, G., Todaro, S. and Zarcone, G.
    [2014] Integration of HVSR measures and stratigraphic constraints for seismic microzonation studies: the case of Oliveri (ME). Natural Hazards and Earth System Sciences Discussion, 2, 2597–2637, doi:10.5194/nhessd‑2‑2597‑2014.
     https://doi.org/10.5194/nhessd-2-2597-2014 [Google Scholar]
  3. Fäh, D., Kind, F. and Giardini, D.
    [2003] Inversion of local S wave velocity structures from average H/V ratios, and their use for the estimation of site-effects. J. Seismol., 7, 449–467.
     [Google Scholar]
  4. Guarnieri, P.
    [2004] Structural evidence for deformation by block rotation in the context of transpressive tectonics, northwestern Sicily (Italy). Journ. Struct. Geol., 26(2), 207–219.
     [Google Scholar]
  5. Montanari, L.
    [1966] Geologia dei Monti di Trabia. Riv. Min. Sicil., 97–99, 35–81.
     [Google Scholar]
  6. Nakamura, Y.
    [2000] Clear Identification of Fundamental Idea of Nakamura’s Technique and its Applications. 12th World Conference on Earthquake Engineering, 2656.
     [Google Scholar]
  7. Parolai, S., Bindi, D. and Augliera, P.
    [2000] Application of the Generalized Inversion Technique (GIT) to a microzonation study: numerical simulations and comparison with different site-estimation techniques. B. Seismol. Soc. Am., 90, 286–297.
     [Google Scholar]
  8. Sambrige, M.
    [1999] Geophysical inversion with a neighbourhood algorithm - I. Searching a parameter space. Geophys. J. Int., 103, 4839–4878.
     [Google Scholar]
  9. Wathelet, M., Jongmans, D. and Ohrnberger, M.
    [2004] Surface-wave inversion using a direct search algorithm and its application to ambient vibration measurements. Near Surf. Geophys., 2, 10211–221.
     [Google Scholar]
http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20142094
Loading
Seismic Characterization by Inversion of HVSR Data to Improve Geological Modelling
Conference Proceedings 2014, 1 (2014); https://doi.org/10.3997/2214-4609.20142094
/content/papers/10.3997/2214-4609.20142094
/content/papers/10.3997/2214-4609.20142094
Loading

Data & Media loading...

Most Cited This Month Most Cited RSS feed

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error