Regional Distance PL Phase in the Crustal Waveguide - An Analog to the Teleseismic W Phase in the Upper‐Mantle Waveguide
Dense strong ground motion observations of the shallow Mw 6.6 2004 Mid‐Niigata earthquake, Japan, show a strong, moderately long‐period disturbance (5–20 s) immediately following P. The associated ground motion is as large or larger as that in the S waves and surface waves. The nature of this PL phase is revealed with the aid of 3‐D finite difference simulations for heterogeneous crust and mantle structures. A strong near‐field contribution at the nearest stations grades into an interference...[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of Geophysical Research: Solid Earth|
|01_Furumura_Regional_Distance_PL_Phase_in_2018.pdf||24.93 MB||Adobe PDF|
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