Intro to Earthquakes

An earthquake is

• A break in the asthenosphere and shake of the lithosphere

• Shake of earth's surface due to a break of the crust and release of energy

• movement of the earth surface

• shake of the crust

Answer explanation

Earthquakes happen due to a break in the crust. The energy is released and transmitted by seismic waves

Tags

NGSS.MS-ESS2-3

NGSS.MS-ESS3-2

The box with the letter A points to

Answer explanation

Seismic waves, radiate in all directions from the focus.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

D is called :

Answer explanation

The focus is a point under subsurface where the earthquake originated.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-3

D is:

• The point where the earthquake originated

• The point where the seismic waves originated

• The point where the crust break

• Alll the answers are correct

Answer explanation

There is a point where the rupture of the crust takes place. One the break happens the energy is released from that point and transmitted in a radial pattern by seismic waves

Tags

NGSS.MS-ESS3-2

This is the area beneath the Earth's surface where the earthquake begins

• epicenter

• focus

• fault line

• tectonic plate

Answer explanation

The area beneath the Earth's surface where an earthquake begins is referred to as the 'focus'. This is not the 'epicenter', which is the point on the surface above the focus. It's also not the 'fault line' or the 'tectonic plate', which are larger geological structures. So, the correct answer to the question is 'focus'.

Tags

NGSS.HS-ESS2-1

Where does an earthquake begin?

• Epicenter

• Fault

• Focus

• Joint

The box label as C is called:

Answer explanation

The epicenter is the point directly above the focus at the surface of the earth.

Tags

NGSS.MS-ESS3-2

The plate boundary that produce the most dangerous earthquakes is:

Answer explanation

Earthquakes at divergent boundaries are less intense that the earthquakes produced at convergent boundaries

Tags

NGSS.MS-ESS3-2

A break of the crust where there is no block displacement is called a

• Fault

• fracture

• break

Answer explanation

Fractures and joins do not have displacement or relative movement of the blocks.

Faults have movement of the blocks

A break in the crust where there is displacements is called:

• A fault

• A join

• A break

• A fracture

Answer explanation

Fractures and joins do not have displacement or relative movement of the blocks.

Faults have movement of the blocks

Tags

NGSS.MS-ESS1-4