New Zealand, surrounded by vast oceanic bodies and situated along the Pacific Ring of Fire, is susceptible to tsunamis. These powerful sea waves can be triggered by underwater earthquakes, volcanic eruptions, or landslides, both near and far from the coast. Tsunami’s can also be triggered in lakes of which there are plenty in New Zealand. Tsunamis can cause rapid and devastating flooding, sweeping away everything in their path. Understanding the warning signs, such as sudden sea level changes or unusual ocean activity and knowing how to respond quickly can be life-saving. Preparation and awareness are key to minimizing the impact of tsunamis on individuals and communities.

Key Advice for Tsunamis

Stay Informed

• Monitor tsunami warnings from reliable sources like GeoNet and local authorities.
• Download emergency alert apps to receive real-time updates and warnings about tsunami activity.

Prepare Your Home

• Know if you live in a tsunami hazard zone by checking local hazard maps.
• Plan and practice evacuation routes to higher ground or inland, away from the coast.

Emergency Supplies

• Have an emergency kit ready with essentials such as water, non-perishable food, medications, flashlights, batteries, and a first aid kit.
• Store important documents in a waterproof container.

Evacuation Plan

• Identify the nearest high ground or inland safe area and know the quickest route to get there.
• Keep your car’s gas tank full and have an emergency bag packed with necessities.
• If you feel an earthquake that lasts longer than a minute, or one strong enough to make standing difficult, move to higher ground immediately without waiting for an official warning.

During the Tsunami

• If you are near the coast and experience strong shaking, evacuate to higher ground immediately. ­If it’s long and strong, get gone.
• Do not wait for an official warning; natural signs such as the sea receding unusually should prompt immediate action.
• Stay away from the coast until authorities declare it safe to return.

After the Tsunami

• Be aware of the possibility of multiple waves; the first wave is often not the largest.
• Listen to local authorities for information and updates on when it is safe to return.
• Avoid floodwaters, as they may be contaminated or hide hazards.

Communication

• Keep family and friends informed of your status and location.
• Use text messages or social media to communicate, as phone lines may be overloaded.

By following these guidelines, you can enhance your safety and preparedness during a tsunami in New Zealand.

Useful Links

• Get Ready NZ
• East Coast Lab
• Geo Net NZ