Upolu (Samoa): Perspective on Island Subsidence from Volcano Loading

摘要

From the present subsea elevation of the ferry berth Lapita archaeological site off Mulifanua at the western tip of Upolu in Samoa, Dickinson and Green (1998) inferred that the site has subsided ～4 m at a mean rate of ～1.4 mm/yr since occupation of the site at ～2750 yr BP during the waning phases of the mid- Holocene hydro-isostatic highstand in tropical Pacific sea level.