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- W2621021087 abstract "The application of ambient noise analysis to active volcanic systems represents a recent technique to model seismic structure without distinct sources. All the existing methods are based on the fact that surface waves are dispersive and most of them require a large number of available days and inter-station distances larger than 2-3 wavelengths. We apply multiple techniques to seismic data recorded during a temporary deployment of 19 seismic stations in January 2015 at Pacaya volcano, Guatemala, a dataset with some distinct differences from those typically used for ambient noise analysis. Despite having less than a week of data and relatively close inter-station spacing, we find a good agreement between the approaches. In particular, we find that the SPAC method (Aki, 1957) is applicable not only for a seismic array, but also for single pairs of stations. It may be particularly favorable in those conditions characterized by small set of data and small inter-station distances. We also noted linear relationship between phase velocity and inter-station distance might suggest a contribution of body/scattered waves within the surface waves and it is probably due to the seismic station configuration in proximity of the Pacaya vent." @default.
- W2621021087 created "2017-06-09" @default.
- W2621021087 creator A5065399894 @default.
- W2621021087 date "2020-12-10" @default.
- W2621021087 modified "2023-10-14" @default.
- W2621021087 title "COMPARISON OF AMBIENT NOISE METHODS TO FIND SURFACE - WAVE DISPERSION CURVES AT PACAYA VOLCANO, GUATEMALA" @default.
- W2621021087 doi "https://doi.org/10.37099/mtu.dc.etdr/377" @default.
- W2621021087 hasPublicationYear "2020" @default.
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