Tsunamis and storm surges

Tsunamis and storm surges are caused by different events but both result in flooding and damage to coastal areas. Tsunamis are immense sea waves (10 metres or more), which are produced by underwater events such as earthquakes, mudslides and volcanic eruptions. They start out small in the open seas but amplify in size as they reach shallow water. In 1929, when an earthquake-generated tsunami hit the south coast of Newfoundland, 28 people died.

Storm surges are elevated sea levels produced by intense marine low pressure systems. Storm surges at times of high tides can lead to coastal flooding and are often accompanied by large ocean waves.

tsunami icon storm surge icon

For further information on specific events, see the Canadian Disaster Database.

To learn more about how individuals can get better prepared to cope with natural hazards, check out the information available from GetPrepared.

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Emergency Management News Releases

  • Governments of Canada and Ontario announce funding for flood mitigation project
    October 12, 2018
  • Government of Canada makes Asticou Centre available for Mont Bleu students
    October 10, 2018
  • Statement by Minister Goodale on Firefighters' National Memorial Day
    September 9, 2018

    • More Emergency Management News Releases

    Emergency Management Publications and Reports

  • An Emergency Management Framework for Canada - Third Edition
  • 2016-2017 Evaluation of the Disaster Financial Assistance Arrangements
  • Summary of the Evaluation of the Disaster Financial Assistance Arrangements Program
  • Ministerial Roundtable on Post-Traumatic Stress Disorder in Public Safety Officers
  • Plan for the Movement of People and Goods During and Following an Emergency

    • More Emergency Management Publications and Reports

    Canadian Disaster Database

    Canadian Disaster Database
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