Crossref journal-article
American Geophysical Union (AGU)
Geophysical Research Letters (13)
Abstract

By using data obtained with a linear array at Arenal volcano, we show that the H/V spectral ratio method can be profitably applied to detect site effects on volcanoes. Similar results are obtained when calculating spectral ratios with different types of seismo‐volcanic signals (tremor, ambient noise, explosion quakes, LP events). We compare the H/V ratios with theoretical S‐wave transfer functions calculated using velocity models obtained from seismic refraction studies. There is a good agreement when the H/V ratios display sharp peaks, indicating a close relationship between the ratios and the transfer function of the shallow structure. Furthermore, the main peaks of the spectral ratios are consistent with local amplification of seismic waves observed at the corresponding frequencies.

Bibliography

Mora, M. M., Lesage, P., Dorel, J., Bard, P., Métaxian, J., Alvarado, G. E., & Leandro, C. (2001). Study of seismic site effects using H/V spectral ratios at Arenal Volcano, Costa Rica. Geophysical Research Letters, 28(15), 2991–2994. Portico.

Authors 7
  1. Mauricio M. Mora (first)
  2. Philippe Lesage (additional)
  3. Jacques Dorel (additional)
  4. Pierre‐Yves Bard (additional)
  5. Jean‐Philippe Métaxian (additional)
  6. Guillermo E. Alvarado (additional)
  7. Carlos Leandro (additional)
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Dates
Type When
Created 21 years, 4 months ago (April 12, 2004, 9:54 a.m.)
Deposited 1 year, 9 months ago (Nov. 22, 2023, 12:52 a.m.)
Indexed 1 year, 3 months ago (April 25, 2024, 2:32 p.m.)
Issued 24 years ago (Aug. 1, 2001)
Published 24 years ago (Aug. 1, 2001)
Published Online 24 years ago (Aug. 1, 2001)
Published Print 24 years ago (Aug. 1, 2001)
Funders 0

None

@article{Mora_2001, title={Study of seismic site effects using H/V spectral ratios at Arenal Volcano, Costa Rica}, volume={28}, ISSN={1944-8007}, url={http://dx.doi.org/10.1029/2001gl013049}, DOI={10.1029/2001gl013049}, number={15}, journal={Geophysical Research Letters}, publisher={American Geophysical Union (AGU)}, author={Mora, Mauricio M. and Lesage, Philippe and Dorel, Jacques and Bard, Pierre‐Yves and Métaxian, Jean‐Philippe and Alvarado, Guillermo E. and Leandro, Carlos}, year={2001}, month=aug, pages={2991–2994} }