After they went under, the bow and stern took only about 5–6 minutes to sink , spilling a trail of heavy machinery, tons of coal and large quantities of debris from "Titanic"s interior. The two parts of the ship landed about apart on a gently area of the seabed. The streamlined bow section continued to descend at about the angle it had taken on the surface, striking the seabed prow-first at a shallow angle at an estimated speed of . Its momentum caused it to dig a deep gouge into the seabed and buried the section up to deep in sediment before it came to an abrupt halt. The sudden deceleration caused the bow's structure to buckle downwards by several degrees just forward of the bridge. The decks at the rear end of the bow section, which had already been weakened during the break-up, collapsed one atop another.