1933 Baffin Bay earthquake 1933 Baffin Bay earthquake The 1933 Baffin Bay earthquake struck Greenland and the Northwest Territories (now Nunavut), Canada with a moment magnitude of 7.7 at on November 20. The main shock epicenter was located in Baffin Bay on the east coast of Baffin Island. Shaking was only felt at the small town of Upernavik, Greenland. The event is the largest recorded earthquake to strike the passive margin of North America and is the largest north of the Arctic Circle. No damage was reported because of its offshore location and the small population of the nearby onshore communities. The region around
Investigator Strait boundary with Gulf St Vincent is the line from Troubridge Point on Yorke Peninsula to Cape Jervis on Fleurieu Peninsula. Its boundary with Backstairs Passage is the line from Cape Jervis on Fleurieu Peninsula to Kangaroo Head (west of Penneshaw) on Kangaroo Island. Flinders noted that Backstairs Passage is a body of water separate to Investigator Strait. The boundary between the strait and Nepean Bay on the north-east coast of Kangaroo Island is a line between Point Marsden and Kangaroo Head. The Strait’s western boundary by definition is the line from Cape Spencer on Yorke Peninsula to Cape Borda on