Mapping the thickness of crust and lithosphere of South America
Hawaii is certainly one of the best known examples of regions associated to hotspot-volcanism. The Hawaii-Emperor chain was formed by hot material ascending from the earth's deep interior. While the position of the plume conduit is approximately fixed the Pacific plate slowly passes over it, leaving behind a chain of volcanic islands.
In a previous study Li et al. (2000) investigated broadband data from station KIP (Oahu) and a temporary array (HIBSN) on the Big Island. The basic findings are an updoming area of the 660 km discontinuity SW of Big Island and a low velocity zone (LVZ) in about 140 km depth beneath the SW of Big Island