Canada's National Earthquake Scenario Catalogue - Cascadia Interface Best Fault - Magnitude 9.0

Full rupture of the Cascadia interface fault, the fault defining the boundary between the North American and Pacific Ocean plates. This magnitude 9.0 event, often referred to as ‘The Big One’, affects most communities in southwestern British Columbia.

Data and Resources

Additional Info

Field Value
Last Updated April 17, 2026, 18:05 (UTC)
Created April 17, 2026, 18:05 (UTC)
contact_email nicky.hastings@nrcan-rncan.gc.ca
contact_person {"fr": "Gouvernement du Canada;Ressources naturelles Canada,tiegan.hobbs@nrcan-rncan.gc.ca", "en": "Government of Canada;Natural Resources Canada;Lands and Minerals Sector, Geological Survey of Canada,,tiegan.hobbs@nrcan-rncan.gc.ca"}
criticality_level []
data_dictionary ["geoscientific_information"]
geographic_scope []
open_canada_collection fgp
open_canada_date_published 2021-07-06 00:00:00
open_canada_keywords {"fr": ["Sciences de la terre", "Protection civile", "Tremblement de terre", "Carte géologique"], "en": ["Earth sciences", "Emergency preparedness", "Earthquakes", "Geological maps"]}
open_canada_subject ["form_descriptors", "nature_and_environment", "science_and_technology"]
sensitivity_level unrestricted
title_fr Catalogue national de scénarios de tremblement de terre - Meilleure faille de l'interface Cascadia - Magnitude 9,0
update_frequency as_needed