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Analysis of short‐period P waves from the 1989 Macquarie Ridge Earthquake using a broadband array in Japan
Author(s) -
Tada Taku,
Shimazaki Kunihiko,
Tsuboi Seiji
Publication year - 1993
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 - 10.1029/93gl00036
Subject(s) - seismology , ridge , geology , period (music) , broadband , waveform , acoustics , telecommunications , paleontology , optics , physics , radar , computer science
We have developed a simple method of array analysis, enabling to find out apparent radiation centers of teleseismic waves. Applying this method to short‐period P waveforms from the 1989 Macquarie Ridge earthquake recorded at 7 stations of the Pre‐POSEIDON network in Japan, we obtained a pattern of apparent radiation center migration that is more compatible with a bilaterally propagating source model than with a unilateral one.