Earthquakes Fall 2021

What is the name of the point at which the first movement occurs during an earthquake? Reperesented by letter S

• Epicenter

• Focus

• Fault

• Plate

Where is the point on the Earth’s surface directly above the starting point of an earthquake?

• Epicenter

• Fault

• Magma chamber

• Caldera

Which type of stress occurs at divergent boundaries where plates pull apart?

• tension

• compression

• shear

• transform

At a normal fault the ______________ is on the higher plate

• hanging wall

• footwall

• mantle

• boundary

In a reverse fault the ______________ moves up, relative to the footwall, due to ____________ between the two plates.

• hanging wall, tension

• footwall, tension

• hanging wall, compression

• hanging wall, shearing

Earthquakes begin as breaks in which layer of the Earth

• Crust

• Inner Core

• Outer Core

• Mantle

When plates break or slip past each other they form these

• folded mountains

• trenches

• fault lines

• volcanoes

Which letter represents the movement created by the P Wave?  

• A
• B
• C

The Earth's lithosphere consists of crust and part of the mantle that are broken into several plates. What is the largest and most active tectonic plate.

• African plate

• North American plate

• Pacific plate

• Indo Australian plate

The most destructive seismic waves are _________ .

• P waves

• S waves

• Microwaves

• L Waves