Baffin Bay less than deep near the coast, where the sea bottom is covered with gravel, crushed stone and sand. In the center, there is a deep pit called the Baffin Basin, reaching (see ), which is mostly covered in silt. Currents form a cyclonic circulation. On the eastern periphery, in summer, the West Greenland Current transports water from the Atlantic Ocean to the North. In its western part, the Baffin Island Current brings the Arctic waters to the south. The climate is Arctic with frequent storms, especially in winter. Average January temperatures are in the south and on the north. In
Baffin Bay Canadian mine in the Arctic. The mine was closed in 2002 due to declining resources and metal prices. Whereas the town still has a functional seaport and an airport, as of the 2006 census, it has an official population of zero. Baffin Bay was the epicenter of a 7.3 magnitude earthquake in 1933. This is the largest known earthquake north of the Arctic Circle. It caused no damage because of its offshore location and the small number of the nearby onshore communities. The northwestern part of the bay remains one of the most seismically active regions in eastern Canada. Five