What ocean is home of the Hawaiian-Emperor seamount chain and Kure Atoll?
Hawaiian–Emperor seamount chain: The Hawaiian–Emperor seamount chain is a mostly undersea mountain range in the Pacific Ocean that reaches above sea level in Hawaii. Hawaiian–Emperor seamount chain:  It is composed of the Hawaiian ridge, consisting of the islands of the Hawaiian chain northwest to Kure Atoll, and the Emperor Seamounts: together they form a vast underwater mountain region of islands and intervening seamounts, atolls, shallows, banks and reefs along a line trending southeast to northwest beneath the northern Pacific Ocean. Kure Atoll: Kure Atoll (呉ヶ島 , Kure-gashima ) ( ; Hawaiian: "Mokupāpapa" ) or Ocean Island is an atoll in the Pacific Ocean 48 nmi beyond Midway Atoll in the Northwestern Hawaiian Islands at .
i don't know