# EarthQuakes Ch.5

### Description

Here is something that might help some of you people out there who view it so if it helps use it however you like. :)
Mind Map by Jeremiah Wright, updated more than 1 year ago
 Created by Jeremiah Wright over 6 years ago
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## Resource summary

EarthQuakes Ch.5
1. Section 1: Forces in Earth's crust

Annotations:

• The movement of Earth's plates creates great forces that squeeze or pull the rock in Earth's crust. That great force is called stress
1. 2: Types Of Stress

Annotations:

• There are three types of stress that occurs in the earth. They will be listed in The spaces down below.
1. Tension

Annotations:

• Tension is another type of stress that pulls the crust so that the rock beneath gets thinner and thinner.
1. Compression

Annotations:

• Compression is the type of stress that pushes rock to a point where it either fold or breaks.
1. Shearing

Annotations:

• Shearing is the last type of stress that push masses of rock and land in two separate directions causing Earth's interior to change.
2. 1: Kinds of Faults

Annotations:

• In this section I will tell you about three types of faults that are all totally different.
1. Strike-Slip Faults

Annotations:

• A strike-slip fault is a fault that has rock on either side slip past each other.
1. Reverse Faults

Annotations:

• In a reverse fault what happens is the exact apposite of the normal fault, the hanging wall slides up relative to the footwall.
1. Normal Faults

Annotations:

• In a normal fault there are to walls named the hanging wall  and the footwall, so in the normal fault the hanging wall slips down relative to the footwall.
2. 3: Changing Earth's Surface

Annotations:

• This is the last section
1. Folding Earth's Crust

Annotations:

• Sometimes Earth's crust reaches a point that it will eventually fold and bend, which makes the earth's crust and the rock below it rise up and make mountains.
1. Uplifting Earth's Crust

Annotations:

• The forces that rise mountains can also rise, or uplift plateaus. A plateau is a large flat area that is elevated high above the sea level. this is uplifting Earth's crust.
1. Stretching Earth's Crust

Annotations:

• A fault-block mountain forms when two normal faults cut through blocks of rock ,this is what stretching Earth's crust is.
2. Section 2: Earthquakes and Seismic Waves
1. 1: Types of seismic waves
1. S waves
1. P waves
1. Surface waves
2. 2: Measuring Earthquakes
1. The Mercalli scale
1. The Richter scale
1. Comparing Earth quakes
1. The Moment-magnitude scale
2. 3: Locating the Epicenter
3. Section 3: Monitoring Earthquakes
1. 1: The seismograph
1. Measuring seismic waves
2. 2: instruments that monitor faults
1. tiltmeters
1. creep meters
1. laser-ranging devices
1. GPS satellites
2. 3: using seismograph data
1. mapping faults
1. monitoring changes along faults
1. trying to predict earthquakes
2. Section 4: Earthquake Safety
1. 4: designing safer buildings
1. 1: earthquake risk
1. mapping earthquake intensity
1. historic earthquakes
1. plate boundaries and faults
2. 2: how earthquakes cause damage
1. 3: steps to earthquake safety
1. shaking
1. liquefaction
1. aftershocks
1. tsunamis

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