answersLogoWhite

0

Earthquakes

User Avatar

Yessenia Bashirian

Lvl 10
โˆ™ 2021-10-08 18:35:17
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews
Leave the first rating

Rate this Study Guide:

โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
Cards in this guide (23)
How many earthquakes happen each day

Approximately 275 that are large enough to be felt by humans. For more information, see below:

According to the US Geological Survey there are approximately 1,000,000 earthquakes around the world every year (although the vast majority of these are so small they can only be detected by sensitive scientific equipment).

Of these 1,000,000, approximately 1/10 are large enough to be felt by humans. This means that on any given day there will be an average of 2750 earthquakes around the world of which 275 are large enough to be felt by humans.

Perhaps even more surprisingly, on average there are around 100 earthquakes a year that are large enough to cause damage (however they often don't because they occur away from inhabited areas). This means there is a little under a 1 in 3 chance of there being a "large" earthquake somewhere in the world on any given day of the year.

What is the name given to the period immediately following the Civil War

Reconstruction

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.

What is a mound of wind deposited sand

Dune

Which is a glacial feature caused by erosion

horns, cirques, Ushaped valleys, and glacial lakes.

Glacial erratics if your doing it for

What forms sand dunes

Wind forms sand dunes by picking up dry sediments and accumulating them over time to create over time.

Do s-waves travel faster than p-waves

no p waves travel faster than s waves

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.

Which scale measures the magnitude of an earthquake

The Moment Magnitude scale and the Richter magnitude scale are used to measure the magnitude (energy released) during an earthquake.

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 an earthquakes magnitude a measure of

The magnitude of an earthquake is a measurement of the amount of energy released.

How the gravitational force between earth and the moon would change if the distance if the distance between them increased

If the distance between the Moon and the Earth would increase then the gravitational force between them would be stronger. If they would be separated then the gravitational force is weaker.

Why are desert landscapes jagged and rocky

there is little chemical weathering to round the landscapes

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 are soils that get less 25cm of rain per year

Desert soils

What plate boundary causes seismic waves

Destructive plate boundary.

What is windblown silt that blankets a landscape

loess

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

What are waves of energy that travel through Earth and away from an earthquake in all directions called

Seismic Waves

Related study guides

Earthquakes

20 cards

How many earthquakes happen each day

What is the name given to the period immediately following the Civil War

What are small tremors before a major earhquake

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

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Earthquakes

28 cards

Which rocks are affected by chemical weathering

How many earthquakes happen each day

What are small tremors before a major earhquake

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

โžก๏ธ
See all cards
5.0
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
1 Review

Earthquakes

20 cards

Which rocks are affected by chemical weathering

Do s-waves travel faster than p-waves

What causes the erosion of sand dunes

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

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Earthquakes

21 cards

How many earthquakes happen each day

What is the name given to the period immediately following the Civil War

What is a mound of wind deposited sand

What forms sand dunes

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews

Earthquakes

22 cards

Why do earthquakes often cause damaging fires

Most earthquakes are produced by the rapid release of which kind of energy stored in rock subjected to great forces

What is sediment deposited by wind in layers

The san francisco earthquake of 1906 occurred along what fault

โžก๏ธ
See all cards
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
No Reviews