The 1933 Baffin Bay earthquake struck Greenland and the Northwest Territories (now Nunavut), Canada with a moment magnitude of 7.4 at 18:21:35 Eastern Time Zone on November 20, 1933. Depth is estimated at 10–65 km (6.2–40.4 mi) and the maximum felt intensity is estimated at IV (Light).
The main shock epicenter was located in Baffin Bay on the east coast of Baffin Island. Shaking was only felt at the small towns of Upernavik, Greenland and Clyde River, Nunavut. The event is the largest recorded earthquake to strike the passive margin of North America and is the largest north of the Arctic Circle. It is also one of the largest intraplate earthquakes of all time. No damage was reported because of its offshore location and the small population of the nearby communities.
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