EN FR

Tsunami hazard and risk in Canada

John Clague

In the proceedings of: GeoHazards 6: 6th Canadian Geohazards Conference

Session: Keynote Lectures

ABSTRACT: Tsunamis in Canada have been triggered by earthquakes, landslides, and a large chemical explosion. The Pacific coast is at greatest risk from tsunamis because of the high frequency of earthquakes and landslides in that region. The most destructive historical tsunamis, however, have been in Atlantic Canada – one in 1917 in Halifax Harbour, which was caused by an catastrophic explosion of a munitions ship, and another in 1929 in Newfoundland, caused by an earthquake-triggered landslide at the edge of the continental shelf. The tsunami risk along Canada’s Arctic coast and along the shores of the Great Lakes is low in comparison to that of the Pacific and Atlantic coasts. The hazard is posed by landslides in fjords and inlets along the British Columbia coast is not fully appreciated.


RÉSUMÉ: Tsunamis au Canada ont été déclenchées par des tremblements de terre, glissements de terrain, et une grande explosion chimique. La côte Pacifique est le plus grand risque de tsunamis en raison de la fréquence élevée des tremblements de terre et glissements de terrain dans cette région. Les tsunamis historiques les plus destructrices, cependant, ont été dans le Canada atlantique - une en 1917 dans le port de Halifax, qui a été causé par une explosion catastrophique d'un navire transportant des munitions, et une autre en 1929 à Terre-Neuve, causé par un glissement de terrain le tremblement de terre déclenché à bord du plateau continental. Le risque de tsunami le long des côtes de l'Arctique canadien et sur les rives des Grands Lacs est faible par rapport à celle des côtes du Pacifique et de l'Atlantique. Le risque est posé par des glissements de terrain dans les fjords et anses le long de la côte de la Colombie-Britannique n'est pas pleinement apprécié.


Submit a Data Update Form for this paper
Please include this code when submitting a data update via other methods: GeoHazards6_206

Access this article:
Canadian Geotechnical Society members can access to this article, along with all other Canadian Geotechnical Conference proceedings, in the Member Area. Conference proceedings are also available in many libraries.

Cite this article:
Clague, John (2014) Tsunami hazard and risk in Canada in GeoHazards6. Ottawa, Ontario: Canadian Geotechnical Society.

@inproceedings{Clague_GeoHazards6_206, author = {{Clague, John}}
title = {Tsunami hazard and risk in Canada }
booktitle = {Proceedings of the 6th Canadian Geohazards Conference}
year = {2014}
organization = {The Canadian Geotechnical Society},
address = {Ottawa, Canada} }
Abstracts are Copyright © the Authors and used with permission. Online database Copyright © 2026 The Canadian Geotechnical Society. All rights reserved.