8R QUIZ: Earthquakes, seismic waves, and tsunamis

As Michael and Emma watched the waves of a tsunami travel through shallow water near land, they noticed the waves get

• bigger

• smaller

• stay the same

Abigail is studying seismic activity and notices that the farther a seismic station is from an earthquake, a person will notice that  the time between P and S waves

• Increases

• Decreases

• Same

What evidence do we have to support that the crust is moving?

• Rocks that have pretty colors because it makes them look cool

• Rocks that have been folded, faulted, or tilted because they were deposited horizontally first and then moved.

• There is no evidence of crustal movement

• Rocks that are horizontal because they used to be vertical

During a class activity, Aria and Mia observed a diagram of an earthquake. The diagram has two points, P and Q, marked as shown.

How is the energy for the earthquake in the diagram generated?

• The heat created from the forces on the rocks caused them to break at a strong point along the fault, which freed stored energy as vibrations

• The heat created from the forces on the rocks caused them to break at a weak point along the fault, which freed stored energy as vibrations.

• The pressure from the forces on the rocks caused them to break at a strong point along the fault, which freed stored energy as vibrations.

• The pressure from the forces on the rocks caused them to break at a weak point along the fault, which freed stored energy as vibrations.

James and his friends are part of a school science project to study earthquakes. They want to know what is the minimum number of seismograph stations needed to locate an earthquake epicenter?

• 1

• 2

• 3

• 5

During a geology class, Ethan asked, "What is a fracture in Earth's crust?"

• Plate boundaries

• Magnitude

• Fault

• Seismic

REVIEW: Zoe and Lily are studying a map of the San Andreas Fault. What kind of plate boundary is shown here?

• divergent

• convergent

• transform

• submergent

Scarlett and Mia were learning about earthquakes in their science class. Their teacher explained that the type of seismic waves that arrive at a seismic station FIRST are fastest, and move by compressing and expanding the ground like an accordion are called

• S waves

• surface waves

• tsunami waves

• primary waves

A ____________ is a crack in the Earth's crust where movement occurs.

• Tsunami

• fault

• epicenter

• seismologist

Isla and Luna were studying natural disasters in their science class. Their teacher asked, "Most Tsunamis are caused by ___________________."

• underwater earthquakes

• floods

• volcanoes

• rain