This article was corrected on 7 MAY 2015. See the end of the full text for details.
Ambient noise cross-correlation observations of fundamental and higher-mode Rayleigh wave propagation governed by basement resonance
Version of Record online: 19 JUL 2013
©2013. American Geophysical Union. All Rights Reserved.
Geophysical Research Letters
Volume 40, Issue 14, pages 3556–3561, 28 July 2013
How to Cite
2013), Ambient noise cross-correlation observations of fundamental and higher-mode Rayleigh wave propagation governed by basement resonance, Geophys. Res. Lett., 40, 3556–3561, doi:10.1002/grl.50678., , and (
- Issue online: 22 AUG 2013
- Version of Record online: 19 JUL 2013
- Accepted manuscript online: 20 JUN 2013 12:00AM EST
- Manuscript Accepted: 17 JUN 2013
- Manuscript Revised: 14 JUN 2013
- Manuscript Received: 9 MAY 2013
- California Institute of Technology and NSF. Grant Number: EAR-1252191
|2013GL055233fs01.eps||PS document||19178K||Record sections of all nine cross-correlation functions of broadband data. Earthquake-station pairs with propagation directions between 220° and 370° were reversed, so that the positive lag times correspond to energy arriving from NNE through SSW. The gray lines on the ZZ and RR components denote a 1.1 km/s move-out speed. Each waveform is normalized relative to its own maximum amplitude.|
|2013GL055233fs02.eps||PS document||503K||Sensitivity of the phase velocity of Rayleigh waves calculated for the fundamental and first higher modes, using the velocity model in Table 1. Red solid line is for Vs, green dashed line for Vp and blue dashed line for density. (left) Sensitivity of the fundamental mode. (right) Sensitivity of the first higher mode. (top) Phase velocity sensitivity. (bottom) Sensitivity of H/V ratio.|
|2013GL055233fs03.eps||PS document||5104K||More detailed version of Figure 4Absolute value of H/V ratios from synthetic modeling (curve), and the observed distributions over all station pairs of the maximum amplitude of the radial component divided by the maximum amplitude of the vertical component for the given mode (see text for definition). Box and whiskers plots are separated into those from the entire distribution (gray); from just the westward-propagating paths (blue); and from the eastward-propagating paths (red). Note that the same shape as a function of period is seen in all manifestations (a) 1st order mode amd (b) fundamental mode. Note the change of scale for the period axis, since the windows of the first order mode had smaller window lengths than that of the fundamental mode.|
|2013GL055233fs04.eps||PS document||756K||SNR for the (a) fundamental (mode 0 for frequencies between 0.08 and 0.2 Hz) and (b) first higher mode (mode 1 for frequencies between 0.4 and 1 Hz). For each station pair, two bars with opposite directions are plotted at each station. The length of each bar is proportional to the SNR at positive or negative lag (whichever is appropriate) multiplied by the square root of the interstation distance (Lin et al., 2007). The directions point along the great-circle linking the stations in the direction toward which the energy propagates. For example, energy propagating from the south will be represented by a northward pointing bar. Colors represent different components: Yellow (RR), red (ZZ) and blue (TT).|
|2013GLO55233mx01.mpg||MPEG video||1976K||Movie of the Rayleigh wave propagation for the velocity model in Table 1. Red circles represent the synthetic particle motion due to a horizontal force at 0.75 km depth calculated from the velocity model in Table 1. The particle motion is band-passed between 0.4–1 Hz.|
|Darfield_noise_highmode_revisionv_11jun_supp_readme.docx||Word 2007 document||30K||Supporting Information|
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