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Get prepared for a tsunami

Last updated on March 3, 2025

image of a house at the bottom on a slope, with a wave coming in from the shore.

Tsunamis are most often caused by huge undersea earthquakes that cause large waves. It may take hours for waves to reach the shore if an earthquake happens far away. Strong earthquakes near land could generate a tsunami that arrives in just minutes. 

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If you're near the coast and feel an earthquake 

If you are near the coast when an earthquake occurs, Drop, Cover and Hold On. When the shaking stops, get to higher ground to protect yourself from a potential tsunami.

In coastal areas without evacuation maps, plans or cell service, move as high or far inland (away from the water) as possible.

In areas with evacuation maps, plans and cell service, move to high ground following your designated tsunami evacuation route. Follow all instructions from local officials.

Once you are at high ground, stay there until you receive the "all clear" message from local officials, tsunami waves can last several hours. Never go to the beach to watch the waves. A tsunami can move faster than you can run.

Tsunami notification zones

Our coastal communities are divided into five tsunami notification zones. Knowing your zone will help when a Warning, Advisory or Watch is issued for your area. Use the maps below to identify your zone then check in with your local authority about your community's tsunami plan, evacuation routes and high ground locations. 

Tsunami Notification Zone A - map (PDF, 2.6MB)

  • North coast and Haida Gwaii

Tsunami Notification Zone B - map (PDF, 3.5MB)

  • Central coast and northeast Vancouver Island coast including Kitimat, Bella Coola, and Port Hardy

Tsunami Notification Zone C - map (PDF, 4.2MB)

  • West coast of Vancouver Island from Cape Scott to Port Renfrew

Tsunami Notification Zone D - map (PDF, 1.8MB)

  • Juan de Fuca Strait from Jordan River to Greater Victoria (including the Saanich Peninsula)

Tsunami Notification Zone E - map (PDF, 4.1MB)

  • Strait of Georgia (including the Gulf Islands)
  • Greater Vancouver and Johnstone Strait

graphic depicting the 5 tsunami notification zones of B.C.

Practice your tsunami evacuation route. High Ground Hike is a yearly event encouraging residents of coastal communities to practice getting to their high ground location.  

How to get information 

If you live in a tsunami notification zone and a Tsunami Warning is issued, the warning will be broadcast across television, radio and compatible mobile devices through B.C.'s emergency alert system.

Your local authority may also have its own alerting system, including sirens, and will be sharing information via social media, phone, text message, door knocking, local radio and TV. Contact your local authority in advance to find out what will be used in your community. 

Once a Tsunami Warning has been issued, it is important to follow directions from your local authorities. You should also follow official sources of information like EmergencyInfoBC. 

Types of tsunami alerts

Alert Level Threat Action
WARNING Flood wave possible Full evacuation suggested
ADVISORY Strong currents likely Stay away from the shore
WATCH Danger level not yet known Stay alert for more information 
INFORMATION STATEMENT Minor waves at most No action suggested
CANCELLATION Tidal gauges show no wave activity Confirm safety of local areas