2020 National Building Code of Canada Seismic Hazard Tool

This application provides seismic values for the design of buildings in Canada under Part 4 of the National Building Code of Canada (NBC) 2020 as prescribed in Article 1.1.3.1. of Division B of the NBC 2020.

Site designation
Select the site designation in accordance with Article 4.1.8.4. of the NBC 2020. Further guidance is available in the Commentary entitled Design for Seismic Effects in the Structural Commentaries (User’s Guide – NBC 2020: Part 4 of Division B).
Location
Instructions

Seismic hazard values are calculated for specific geographical coordinates. This tool can assist you in determining the coordinates of your site using one of the following options.

  • Address: the street address of the site
  • Current Location: your current location can be estimated using the geolocation data from your browser
  • Manually: by entering the latitude (between 42 and 90) and longitude (between -141 and -45) of the site in decimal degree format

Once the Search address button is selected, a map showing the user's chosen location will appear. The user can adjust the location on the map as needed.

ex: 275 Notre-Dame Street East, Montreal, Quebec

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