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1933 Baffin Bay earthquake

From Wikipedia, the free encyclopedia

1933 Baffin Bay earthquake
UTC time1933-11-20 23:21:35
ISC event905919
Local dateNovember 20, 1933 (1933-11-20)
Local time18:21:35 Eastern Time Zone
Magnitude7.7 Mw [1]
Depth15 km (9 mi) [1]
Epicenter73°07′N 70°01′W / 73.12°N 70.01°W / 73.12; -70.01 [1]
Areas affectedCanada, Greenland

The 1933 Baffin Bay earthquake struck Greenland and the Northwest Territories (now Nunavut), Canada with a moment magnitude of 7.7 at 18:21:35 Eastern Time Zone 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.[2]

Regional Seismicity

The region around northwestern Baffin Bay and northeastern Baffin Island continues to be seismically active.[3] Six magnitude 6 earthquakes have occurred there since 1933. Multiple small earthquakes with magnitudes ~4-5.5 still occur each year.

See also


  1. ^ a b c ISC (2015), ISC-GEM Global Instrumental Earthquake Catalogue (1900–2009), Version 2.0, International Seismological Centre
  2. ^ NRC (2013), The 1933 Baffin Bay earthquake, Natural Resources Canada
  3. ^ "The 1933 Baffin Bay earthquake". Earthquakes Canada. Natural Resources Canada. Retrieved 29 April 2018.


External links

This page was last edited on 18 April 2020, at 01:38
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