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Authors: Zonno, G.* 
Musacchio, G.* 
Meroni, F.* 
Basili, R.* 
Imperatori, W.* 
Mai, P. M.* 
Title: Delimitation of Near-fields boundaries (Final Report)
Other Titles: Deliverable 2 # A3.13.8
Issue Date: 10-Jun-2010
Series/Report no.: INGV-DPC 2007-2009
Deliverable 2 # A3.13.8
Keywords: seismogenic source
Near-fields boundaries
ground motion
Subject Classification04. Solid Earth::04.06. Seismology::04.06.99. General or miscellaneous 
Abstract: We examine possibilities to delineate the boundaries between near-field and far-field radiation of seismic waves. Near-field (NF), intermediate-field (IF) and far-field (FF) terms represent different properties of the seismic wave-field: the near-source motions are sensitive to the spatio-temporal details of the rupture process, while far-field terms tend to carry the overall signature of the rupture. Due to the longer propagation path of far-field waves through complex Earth structure, their waveform properties also depend more strongly on media properties (scattering; intrinsic attenuation), than it is the case for the NF-wavefield.
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