Hikurangi Subduction Zone Preparedness

The video presents a scenario of a magnitude 8.9 earthquake and tsunami on New Zealand's Hikurangi Subduction Zone. It details the earthquake's potential impacts, including ground shaking and tsunami formation. The scenario aids emergency responders in planning and emphasizes the importance of self-evacuation during long or strong earthquakes. It also highlights the need for public awareness of evacuation routes and zones.

What is the primary purpose of the scenario designed by New Zealand scientists for the Hikurangi Subduction Zone?

• To provide entertainment

• To replace existing safety protocols

• To help emergency responders plan and prepare

• To predict the exact future events

How much more energy would the Hikurangi earthquake release compared to the 2016 Kaikoura earthquake?

• 10 times more

• 20 times more

• 45 times more

• 100 times more

What is the expected duration of severe shaking in Auckland during the earthquake scenario?

• 90 seconds

• 30 seconds

• 60 seconds

• 10 seconds

What causes the tsunami in the Hikurangi scenario?

• Sudden movement of the sea floor

• Strong winds

• A volcanic eruption

• Heavy rainfall

How do sea levels change immediately after the earthquake rupture in the scenario?

• They remain constant

• They rise uniformly

• They rapidly change, with some areas rising and others decreasing

• They decrease uniformly

What is the maximum wave height that could be reached in steep valleys during the tsunami?

• 15 metres

• 20 metres

• 10 metres

• 5 metres

Why might there not be enough time for an official evacuation warning in this scenario?

• The earthquake is too weak

• The warning systems are malfunctioning

• The tsunami waves travel too quickly

• The tsunami waves travel too slowly

What should be your signal to self-evacuate all tsunami evacuation zones?

• A text message alert

• A radio announcement

• A long or strong earthquake

• A loud siren

Which website is recommended for checking your tsunami evacuation zones?

• getready.govt.nz

• safetyfirst.co.nz

• tsunamiinfo.org

• earthquakealert.com

What is the main benefit of science-based scenarios like the one for the Hikurangi Subduction Zone?

• They provide entertainment

• They predict the exact future events

• They help emergency managers plan and prepare

• They replace existing safety protocols