Surface Features and Events Quiz

The Hawaiian Islands are in the middle of a tectonic plate, far away from a plate boundary. The Hawaiian islands are made up of many volcanic islands. These volcanic islands are a direct result of the tectonic plate...

• being forced under another tectonic plate at a subduction zone
• colliding with another tectonic plate and being forced upward
• applying great pressure on the crust causing constant earthquakes
• moving over a hot spot where magma breaks through the crust

Identify if the statement is referring to p-waves or s-waves. -arrive first, travel through solids and liquids

• p-wave
• s-wave

Identify if the statement is referring to p-waves or s-waves. -arrive second, only travel through solids

• p-wave
• s-wave

When a plate is being subducted, or going through the process of subduction, which layer is it returning to?

• crust
• mantle
• core

What is the difference between the epicenter and the focus of an earthquake?

• the epicenter is the point below ground where the earthquake originated and the focus is the point on the surface directly above the epicenter
• the epicenter is the point where the seismic waves reach the seismometer and the epicenter is where the earthquake originated
• the focus is the point below ground where the earthquake originated and the epicenter is the point on the surface directly above the focus

How did scientists discover that the ocean floor was not flat?

• Alfred Wegener discovered underwater mountains and published the evidence with his theory.
• Harry Hess left his SONAR on while sailing across the ocean, which mapped the underwater landforms.
• Albert Einstein discovered the ocean floor features.

What is the minimum number of seismic stations that is needed to determine the location of an earthquake's epicenter?

• one
• two
• three
• four