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High‐frequency Pn,Sn velocities: Some comparisons for the western, central, and South Pacific
Author(s) -
Walker Daniel A.
Publication year - 1981
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/gl008i003p00207
Subject(s) - subduction , geology , seismology , pacific plate , range (aeronautics) , pacific ocean , geodesy , tectonics , oceanography , materials science , composite material
High‐frequency Pn,Sn velocities for earthquakes originating in the subduction zones of the Western Pacific suggest that the travel paths of these phases, recorded in the range of 12° to 30°, may be significantly different from those of Pn,Sn phases recorded at distances less than 12° or greater than 30°. This suggestion is supported by high‐frequency Pn,Sn velocities for intra‐plate earthquakes in the Central and South Pacific.