Oceanic crust subduction into the mantle is the reason Manhattan Island is now nine meters farther from London than it was in 1776.

Question

Quizplus · Accepted Answer

The primary reason Manhattan Island is now farther from London than it was in 1776 is due to the movement of the tectonic plates, specifically the Atlantic Ocean widening because of the mid-Atlantic Ridge's activity, not directly because of oceanic crust subduction into the mantle.

Oceanic Crust Subduction into the Mantle Is the Reason Manhattan