Sci 4 Review - Earthquakes

For which of the following activities would a geologist use a seismograph?

What stress force is occurring?

On a seismogram, higher lines drawn in the paper indicate ____ seismic waves

What type of stress is shown?

The epicenter is ____ the focus

The Ring of Fire is an area of seismic activity around which ocean?

The weight and pen of a seismograph resist ___ during an earthquake

What does a seismograph record?

On a seismograph, smaller waves that occur after the earthquake indicate a(n)

What type of fault will be a result of the rock stress shown?

The stress force that squeezes rock until it folds or breaks is

What stress force is occurring?

What stress force is occurring?

What type of fault will be a result of the rock stress shown?

Stress that pushes a mass of rock in two opposite directions is called

To locate the epicenter of an earthquake, geologists need data from ___ or more seismographs.

Geologists know that wherever plate movement stores energy in the rock along faults,

The point beneath Earth's surface where rock breaks under stress and triggers an earthquake is

What type of stress is shown?

The point on the surface directly above the point at which an earthquake occurs is

In which areas is the risk of earthquakes the greatest?

The collision of two plates causes the formation of ___ mountains

The land between two normal faults moves upward to form a

Seismic waves that travel along Earth's surface & produce the most severe ground movements are

A fold in rock that bends upwards is called a(n)

The first waves shown on a seismogram are the ___ waves

Volcanic belts are often found along

Compression causes the formation of

What type of stress is shown?

When an earthquake occurs, ___ waves are the first to arrive at a given location

The damage caused by an earthquake is likely to be greatest

A large area of flat land elevated high above sea level is a(n)

Earthquakes are caused by the forces of ____ movement.

The block of rock that lies above a fault is called the

What type of fault will be a result of the rock stress shown?

The stress force that pulls on the crust and thins rock in the middle is

Which type of stress produces reverse faults?

Geologists use the moment magnitude scale to rate the total ____ released by an earthquake

In a _____ fault, the rocks on either side of the fault slip past each other sideways.

The Modified Mercalli scale rates the amount of ____ from an earthquake.

A fault in which the rocks on either side of the fault move sideways past each other is a