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Analysis of Rayleigh Wave Ellipticity in the Iberian Peninsula and Morocco Using Ambient Noise and Teleseismic Records

AuthorsGómez-García, Clara; Villaseñor, Antonio ; Ugalde, Arantza ; Gaite, Beatriz
Issue Date1-Jun-2015
Abstract/V ratios, we use more than 250 shallow (h<40 km) teleseismic events with magnitudes Mw>6.0 recorded atmore than 450 seismic stations. We also use all the multicomponent ambient noise cross correlations computed for each station pair for the time period 2010 to 2012. Periods between 20 and 100 seconds are investigated. We observe a good agreement between the uppermost geological features of the crust and the obtained Rayleigh H/V ratios, with low values in major mountain ranges and high ratios in sedimentary basins. Combination of Rayleigh H/V ratio measurements from both earthquakes and ambient noise data with phase velocities and other types of seismic data will help to better constrain the Earth’s structure at different crustal levels.
Description77th EAGE Conference & Exhibition 2015 –Workshops programme Madrid IFEMA, Spain, 1-4 June 2015
Publisher version (URL)http://dx.doi.org/10.3997/2214-4609.201413581
Appears in Collections:(ICTJA) Comunicaciones congresos
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