Abstract
Love waves from the 1990 Philippine Islands earthquake show large amplitude anomalies at broadband seismograph stations in Japan, while Rayleigh waves do not. We calculate synthetic seismograms using the fully coupled eigensolutions obtained by a variational method to see if this anomalous behavior of surface waves is explained by the laterally heterogeneous earth model M84A of Woodhouse and Dziewonski. We show that the anomalous long‐period surface wave amplitude behavior can be reproduced relatively well by M84A.
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