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Earthquakes

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Mattie Grant

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Cards in this guide (14)
What are small tremors before a major earhquake

Small tremors before a major earthquake are referred to as foreshocks. They occur before 70 percent of large seismic events, and to a lesser extent before smaller earthquakes.

The low bedrock ridges and peaks of a highly eroded basin and range desert landscape are called

The low bedrock ridges and peaks of a highly eroded basin and range desert landscape are called insellbergs. Deposits of windblown salt are called loess.

Shearing seismic waves that move rocks and other matter in a direction perpendicular to the waves are traveling

Primary waves (p waves)

What is the amount of energy released by an earthquake called

This is known as the magnitude of the earthquake.

When a glacier is retreating does the upstream ice is still moving forward toward the downstream terminus of the glacier

Yes, it is like a shrinking conveyor belt. If the conveyor belt stops moving, then it is no longer classified a glacier; it is then an ice field.

Where a major earthquake has happened in the past but not in a while is called a seismic

Seismic gap.

How do dunes migrate in the direction of the wind

In regards to "sand dunes" they migrate in the direction of the wind as sand particles being individually light can travel on the wind in forms of "sand storms" and therefore migrate overtime, create new dunes or reshape existing dune structures by either adding or withdrawing sand from the wind directions movement.

What are the three main types of glacial erosion

The 3 main types of glacial erosion are plucking, abrasion and freeze thaw.

What is the relationship between intensity and magnitude of an and earthquake

the relationship between earthquakes magnitude is the size or amount of energy an earthquake produces and has no connection to hour often earthquakes occur.

Why are desert landscapes jagged and rocky

there is little chemical weathering to round the landscapes

How does under water earthquake affect the ocean water

It causes the ground at the ocean floor to shift, resulting in the displacement of water. The beginnings of a potential tsunami!

Is it true or false that the closer an earthquake the greater the time between the arrival of P waves and the arrival of S waves

true

What plate boundary causes seismic waves

Destructive plate boundary.

If the steep face of a sand dune is on the southeast side of a dune then the prevailing wind in this area is from the

Southeast

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