Cascadia Subduction Zone and Tsunamis

The video discusses the power of water, focusing on the 2011 Japan earthquake and tsunami, which led to the Fukushima nuclear disaster. It highlights the potential threat of the Cascadia subduction zone in the Pacific Northwest and the research conducted at Oregon State University to understand and prepare for such events. Historical data and seafloor cores are used to predict future tsunamis. The video emphasizes the importance of building resilience and emergency preparedness to mitigate the impact of tsunamis and earthquakes.

What was one of the major consequences of the 2011 Japan tsunami?

• The extinction of a marine species

• The creation of a new island

• The discovery of a new fault line

• The meltdown of the Fukushima nuclear power plant

What is the Cascadia subduction zone known for?

• Causing frequent volcanic eruptions

• Being a tourist attraction

• Being the longest fault line in the world

• The potential to cause a massive earthquake and tsunami

What makes the O Hinsdale Wave Research Laboratory unique?

• It focuses solely on volcanic activity

• It has two wave makers capable of creating tsunami-like waves

• It is the only lab that studies hurricanes

• It is located underwater

What is an 'orphan tsunami'?

• A tsunami that occurs without a preceding earthquake

• A tsunami that only affects uninhabited areas

• A tsunami that happens during the night

• A tsunami that is smaller than usual

How often do tsunamis occur along the Cascadia subduction zone, according to historical data?

• Every 10,000 years

• Every 50 to 100 years

• Every 3 to 500 years

• Every 1000 years

What is a major concern for buildings on the West Coast in the event of a tsunami?

• They are built on unstable ground

• They are located too far inland

• They are mostly lightwood frame structures

• They are all made of glass

Why is it advised to run to high ground during a tsunami?

• Because helicopters can only land on high ground

• Because it is safer than staying indoors

• Because it is faster than driving

• Because the waves are less powerful at higher altitudes

What is the expected duration of ground shaking during a 'really big one' earthquake?

• About 1 minute

• About 30 minutes

• About 10 minutes

• About 5 minutes

How soon can a tsunami arrive after an earthquake on the coast?

• Within 15 to 40 minutes

• Within a few days

• Within a few hours

• Within a week

What percentage of structures on the Oregon Coast are lightwood frame?

• 75%

• 100%

• 95%

• 50%