Understanding the Cascadia Earthquake and Tsunami

What natural event caused the landscape in the Pacific Northwest to drop by several feet?

• A volcanic eruption

• A meteor impact

• A giant earthquake

• A severe storm

What evidence did scientists use to determine the date of the 1700 earthquake?

• Weather patterns

• Tree rings and soil layers

• Old maps

• Ancient artifacts

Who was one of the key scientists involved in the investigation of the Cascadia earthquake?

• Marie Curie

• Albert Einstein

• David Yamaguchi

• Isaac Newton

What role did tree rings play in the investigation of the Cascadia earthquake?

• They helped identify the earthquake's location

• They showed the direction of the earthquake

• They provided a timeline of the earthquake

• They indicated the earthquake's magnitude

How did Japanese records help in dating the Cascadia earthquake?

• They contained geological surveys

• They included ancient myths

• They recorded the exact time a tsunami hit Japan

• They provided eyewitness accounts

What magnitude is expected for a future Cascadia earthquake?

• Magnitude 10 or 11

• Magnitude 8 or 9

• Magnitude 5 or 6

• Magnitude 7 or 8

What is the primary purpose of tsunami modeling?

• To study marine life

• To plan for tsunami evacuations

• To map ocean currents

• To predict weather changes

What is the expected height of the tsunami waves in a future Cascadia event?

• 10 meters

• 20 meters

• 5 meters

• 30 meters

What is the function of the vertical evacuation towers?

• To store emergency supplies

• To generate electricity

• To provide shelter during a tsunami

• To serve as observation decks

What is the significance of the Shoalwater Bay Tribe's efforts?

• They are creating a cultural center

• They are developing new technology

• They are leading a movement for tsunami preparedness

• They are building a new city