Molnar S., Cassidy J. F., Castellaro S., Cornou Cécile, Crow H., Hunter J. A., Matsushima S., Sanchez-Sesma F. J., Yong A. (2018). Application of microtremor horizontal-to-vertical spectral ratio (MHVSR) analysis for site characterization : state of the art. Surveys in Geophysics, 39 (4), p. 613-631. ISSN 0169-3298.
Titre du document
Application of microtremor horizontal-to-vertical spectral ratio (MHVSR) analysis for site characterization : state of the art
Molnar S., Cassidy J. F., Castellaro S., Cornou Cécile, Crow H., Hunter J. A., Matsushima S., Sanchez-Sesma F. J., Yong A.
Source
Surveys in Geophysics, 2018,
39 (4), p. 613-631 ISSN 0169-3298
Nakamura (Q Rep Railway Tech Res Inst 30:25-33, 1989) popularized the application of the horizontal-to-vertical spectral ratio (HVSR) analysis of microtremor (seismic noise or ambient vibration) recordings to estimate the predominant frequency and amplification factor of earthquake shaking. During the following quarter century, popularity in the microtremor HVSR (MHVSR) method grew; studies have verified the stability of a site's MHVSR response over time and validated the MHVSR response with that of earthquake HVSR response. Today, MHVSR analysis is a popular reconnaissance tool used worldwide for seismic microzonation and earthquake site characterization in numerous regions, specifically, in the mapping of site period or fundamental frequency and inverted for shear-wave velocity depth profiles, respectively. However, the ubiquity of MHVSR analysis is predominantly a consequence of its ease in application rather than our full understanding of its theory. We present the state of the art in MHVSR analyses in terms of the development of its theoretical basis, current state of practice, and we comment on its future for applications in earthquake site characterization.
Plan de classement
Sciences fondamentales / Techniques d'analyse et de recherche [020]
;
Géophysique interne [066]
