Ground Shaking and Seismic Waves Quiz

What is ground shaking primarily caused by?

• Wind currents

• Seismic waves

• Ocean tides

• Volcanic eruptions

What is the focus in the context of ground shaking?

• The point on the surface directly above the earthquake

• The point where seismic waves are strongest

• The point inside the Earth where seismic waves originate

• The point where the most damage occurs

What can landslides block, causing disruption?

• Rivers

• Roads

• Airplanes

• Railways

How many people were still missing one week after the earthquake in Sulawesi, Indonesia?

• 1,000

• 3,000

• 5,000

• 7,000

What is a common condition that makes areas more susceptible to landslides?

• Dry soils

• Water-saturated soils

• Sandy soils

• Rocky soils

What occurs after the volume of water is displaced in a tsunami?

• Sea water is sucked back from shore

• An oscillation develops underwater

• Waves get bigger as water gets shallower

• An earthquake rocks the ocean floor

What happens to waves as water gets shallower during a tsunami?

• They disappear

• They get smaller

• They get bigger

• They remain the same size

What was the magnitude of the earthquake that struck Japan on March 11, 2011?

• 7.0

• 8.0

• 9.0

• 10.0

What type of emergency was triggered by the nuclear power plant meltdown?

• Chemical emergency

• Biological emergency

• Nuclear emergency

• Fire emergency

What was required due to the overwhelming damage and humanitarian needs caused by the quake?

• Local response

• National response

• International response

• Community response