Greater Victoria tsunami risk mapped in new online tool – Saanich News


Residents of Greater Victoria now have a new resource to help them better prepare for tsunamis, thanks to a partnership between the Capital Regional District and the provincial government.

The Capital Region Tsunami Information Portal was officially launched on Tuesday 20 September. The portal provides a map of the region that allows residents and visitors to see which areas are within a tsunami risk zone, and even allows searching for specific addresses.

“The capital region is exposed to tsunami risk from several potential sources, fortunately most of the coastline is at limited risk, and most of the area is at low to no tsunami risk, but it is important that people know where the tsunami zones are in the region,” said Ben Arril of GeoBC.

“The Tsunami Information Portal map is a really great tool that helps people visualize and learn more about tsunami hazards.”

Arril said the goal of the portal is to help residents prepare now, so they know what to do in the event of a tsunami. For example, he said residents who discover they live in a low-risk area, indicated by green coloring on the map, would be encouraged to stay put during a tsunami as they would be safe and it would keep the lanes cleared evacuation routes for those in a danger zone – yellow on the map – to move to safer ground.

The portal was created by GeoBC using coastal flood modeling developed by Associated Engineering, DHI and Westmar Advisors with funding from the Federal and Provincial National Disaster Mitigation Program, and was launched by the Regional Partnership of emergency management.

The base modeling was created by the University of Delaware and is available as a public, open-source dataset that has been used by many organizations. It has been tested against other models and compared to known historical tsunami data to ensure that it is as accurate as possible when used in the portal.

It includes 30 meter resolution 3D models of the underwater and terrestrial terrain for the entire region, with four meter resolution models for specific areas including Port Renfrew, Sooke, Victoria, Esquimalt and Sidney.

The portal is available online at

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Capital Regional District Greater Victoria Tsunami

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