Abstract
The variation of log amplitude with distance and the log amplitude decay rate for four short period frequency bands have been studied over the distance range 87° to 119° for earthquakes in the Indonesian region recorded at the Swedish and Finnish seismographic stations. For these ray paths, which are in the vicinity of the core-mantle interface under. Central Asia, it appears that the log amplitude variation is consistent withP velocity models which are nearly constant or have only a slight velocity decrease in the bottom of the mantle. Some anomalous log amplitude behaviour is ascribed to inhomogeneous structure near the core-mantle interface.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
