Baffin Bay earthquakes of magnitude 6 have occurred here since 1933. The latest strong earthquake occurred on 15 April 2010 and had the magnitude of 5.1. Baffin Bay is an arm of the Atlantic Ocean bounded by the Baffin Island in the west, Greenland in the east, and Ellesmere Island in the north. It connects to the Atlantic through the Davis Strait, and to the Arctic through several narrow channels of Nares Strait. It is a northwestern extension of the North Atlantic and Labrador Sea. It can also be viewed as a long strait separating Baffin Island and Greenland. The bay is
Baffin Island to the southern part in winter, even to the Frobisher Bay peninsula, next to Resolution Island and migrate back north in the summer. In 2012, a survey of caribou herds found that the local population was only about 5000, a decrease of as much as 95% from the 1990s. Polar bears can be found all along the coast of Baffin Island, but are most prevalent where the sea ice takes the form of pack ice, where their major food sources — ringed seals (jar seal) and bearded seals — live. Polar bears mate approximately every year with from one to