earthquake hazards and risks - natural resources...

EARTHQUAKE Risk assessments are important. They help to save lives and money by identifying which regions, buildings, infrastructure and people are vulnerable or more likely to experience strong shaking. Risk assessment helps to make informed decisions on where and how to use resources. Risk assessments save: LIVES MONEY TIME by identifying which regions, buildings, infrastructure and people are vulnerable by ensuring that funds are spent where needed most, damages are avoided and disruptions are minimized by helping emergency services target areas that require more attention during response to an event. $ For every dollar spent on mitigation and risk reduction, an average of four dollars is saved. Source: Goldschalk et al., 2009 $4 SAVED = Overall estimated costs of a magnitude 9.0 earthquake in British Columbia would be almost $75 billion, and the costs of a 7.1 magnitude earthquake in the Charlevoix region near Quebec City would be approximately $61 billion 9.0 magnitude costs $75 billion 7.1 magnitude costs $61 billion Source: Earthquakes Canada Natural Resources Canada’s Geological Survey of Canada locates, on average, 5000 earthquakes each year. That is 14 per day on average! About 50 of these are felt annually. 5000 each year per day 24h 14 Source: Earthquakes Canada 90% of earthquakes occur along active plate boundaries. 60% of Canada’s earthquakes occur along BC’s coast. The most active region in eastern Canada is the Charlevoix Seismic Zone. Over the past 350 years, at least 5 earthquakes greater than magnitude 6.0 have occurred in this region. Smaller earthquakes in eastern Canada have caused some damage over the years. Source: Earthquakes Canada BC is the province most likely to experience an earthquake, and Manitoba is the province least likely to experience an earthquake. B.C. Manitoba Source: Earthquakes Canada The largest instrumentally recorded earthquake in Canada was magnitude 8.1 near Haida Gwaii in 1949. Seismic Hazard High Low HAZARDS and RISKS Source: Insurance Bureau of Canada Source: Earthquakes Canada $1 SPENT Seismic Hazard High Low Seismic Hazard High Low

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Page 1: Earthquake Hazards and Risks - Natural Resources Canadaearthquakescanada.nrcan.gc.ca/hazard-alea/earthquake_hazards_risks.pdf · EARTHQUAKE Risk assessments are important. They help

Risk assessments save:

LIVES

MONEY

TIME

by identifying which regions, buildings, infrastructure and people are vulnerable

by ensuring that funds are spent where needed most, damages are avoided and disruptions are minimized

by helping emergency services target areas that require more attention during response to an event.

For every dollar spent on mitigation and risk reduction, an average of four dollars is saved.

Source: Goldschalk et al., 2009

$4 SAVED

Overall estimated costs of a magnitude 9.0 earthquake in British Columbia would be almost $75 billion, and the costs of a 7.1 magnitude earthquake in the Charlevoix region near Quebec City would be approximately $61 billion

9.0 magnitudecosts

$75 billion

7.1 magnitudecosts

$61 billion

Source: Earthquakes Canada

Natural Resources Canada’s Geological Survey of Canada locates, on average, 5000 earthquakes each year. That is 14 per day on average! About 50 of these are felt annually.

5000 each year per day

24h

Source: Earthquakes Canada

90% of earthquakes occur along active plate boundaries. 60% of Canada’s earthquakes occur along BC’s coast.

The most active region in eastern Canada is the Charlevoix SeismicZone. Over the past 350 years, at least 5 earthquakes greater than magnitude 6.0 have occurred in this region. Smaller earthquakes in eastern Canada have caused some damage over the years.

Source: Earthquakes Canada

BC is the province most likely to experience an earthquake, and Manitoba is the province least likely to experience an earthquake.

B.C. Manitoba

Source: Earthquakes Canada

The largest instrumentally recorded earthquake in Canada was magnitude 8.1 near Haida Gwaii in 1949.

Seismic HazardHighLow

HAZARDS and RISKS

Source: Insurance Bureau of Canada

Source: Earthquakes Canada

$1 SPENT

Seismic HazardHighLow

Activities Hazards Earthquake Landslide Volcano Tsunami Flood