Tectonic Hazards Flashcards

1
Q

What’s The 1st Layer Of Earth And What Characterise Does It Have?

A
  • Inner Core
  • Its 5,500 Degrees
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2
Q

What’s The 2nd Layer Of Earth and What Characteris Does It Have?

A
  • Outer Core
  • Its Between 4,000-5,000
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3
Q

What’s The 3rd Layer Of Earth and What Characteris Does It Have?

A
  • Mantle
  • 500-900 Degrees Thick
  • Convection Currents Happen Here
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4
Q

What’s The 4th Layer Of Earth and What Characteris Does It Have?

A
  • Crust
  • Its Between 0-60KM Thick
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5
Q

What Are The 2 Types Of Crust Called?

A

Oceanic and Continental

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6
Q

What The Difference Between Continental and Oceanic Crust?

A
  • Continental Has Land On It And Its Light and Can’t Sink.
  • Oceanic Doesn’t Have Land and Its Heaver and Can Sink
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7
Q

How Many Large And Small Plates Are Their?

A
  • Large Plates - 7
  • Small Plates - 12
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8
Q

What Causes These Plates To Move and Where Is It Located?

A

Convection Currents Which Are Located In The Mantle

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9
Q

What’s The Key Word Called When 2 Plate Meet Together?

A
  • Plate Margin Or Plate Boundaries
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10
Q

What’s The 3 Plate Boundaries Called

A
  • Destructive
  • Constructive
  • Conservative
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11
Q

What Natural Disaster Happens At Destructive Plate Boundaries?

A
  • Volcanoes and Earthquakes
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12
Q

What Natural Disaster Happens At Constructive Plate Boundaries?

A
  • Volcanoes and Earthquakes
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13
Q

What Natural Disaster Happens At Conservative Plate Boundaries?

A
  • Only Volcanoes
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14
Q

In 3 Steps What happens at a Constructive plate boundary?

A
  • 1) At Constructive plate boundaries 2 plates are pulling apart.
  • 2) Magma Rises up through the gap in the earths crust.
  • 3) Forming Shield Volcanoes and creating islands like Iceland.
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15
Q

In 4 Steps What happens at a Destructive plate boundary?

A
  • 1) At Destructive plate boundaries the 2 plates are going towards each other.
  • 2) Oceanic Plates are thinner and made of dense material than Continental plates.
  • 3) When they meet the Oceanic Plate sinks underneath the less dense Continental plates into the subduction zone.
  • 4) The incredible force of this struggle causes powerful effects on the earth forming composite volcanoes.
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16
Q

In 2 Steps What happens at a Conservative plate boundary?

A
  • 1) The plates aren’t moving towards each other or away from each other. But actually moving alongside each other at different speeds or in opposite directions.
  • 2) when the plates get stuck and then finally dislodge a earthquake forms at the earths surface due to the amount of energy and pressure released.
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17
Q

Write a Definition Of a Ocean Trench?

A
  • Its The Land Between The Oceanic and Continental Plate
18
Q

List 4 reasons why people live near earthquakes or volcanoes And explain them

A
  • Geothermal Energy - Creates Renewable Energy Sources.
  • Farming - Volcanic Ash Makes The Soil Very Fertile.
  • Mining - Sulfur Is Found Near Their.
  • Jobs - Lots Of Tourism Jobs And Lots Of Hotels,Restaurants and Souvenir Shops Which Help Income.
19
Q

Name 3 Things That Could Predict That There Is A Volcano and explain Them?

A
  • Gases
  • Changes In Heat
  • Vibrations Underground
20
Q

Explain How Scientise Will Know a Volcanoes Will Happen Due To The Gases Released?

A
  • Certain Gases Indicate Rising Magma Such as Sulphurous Gases and radon gas.
21
Q

Which Country Was L’Aquila Earthquake Happening And What Day?

A
  • It Happened In a Medieval Town In The Abruzzo Region In Central Italy.
  • It Hit On 6 April 2009.
22
Q

How Strong Was The L’Aquila Earthquake and What Time DId The Earthquake Hit?

A
  • It Was Measured 6.3 Magnitude On The Righter Scale.
  • The Earthquake Hit 3:32 Am Meaning People Were Asleep at This Time.
23
Q

Name a Primary Effect Of L’Aquila Earthquake?

A
  • The EU Estimated That The Damage Was $1.1Billion.
24
Q

What Scale Is Used To Measure Earth Quakes?

A
  • Righter Scale
25
Q

Name a Secondary Effect Of L’aquila Earthquake?

A
  • 16,000 Jobs Were lost as Services and Business Left The Area.
26
Q

Write a Definition Of Secondary and Primary Research?

A
  • Primary Research are the direct and immediate Consequence of The Disaster.
  • Secondary Research Is The Months and Years Conque Which Are Delayed.
27
Q

What’s The acronym To Reduce a Earthquake?

A
  • S -Strong Influstucutere
  • E - Early Warning
  • C - Community Awareness
28
Q

What’s The Acronym To Reduce a Volcano?

A
  • M -Monitoring
  • E -Engineering Solutions
  • C - Community Preparedness
29
Q

Write a Definition Of Immediate and Long-term Responses?

A
  • Immediate Reponses Is The actions taken right after emergency occurs.
  • Long-Term Reponses Are The Actions That Try To Recover The Emergency.
30
Q

Name a Immediate Response Of L’Aquila Earthquake?

A
  • Within an Hour The Italian Red Cross Was Searching For Survivors.
31
Q

Name a Long-Term Response Of L’Aquila Earthquake?

A
  • Homes Took Several Years To Rebuild and Historic Centers Will Take 15 Years.
32
Q

What Caused The L’Aquila Earthquake?

A

L’Aquila Is Situated Along The North West - South East Paganica Fault Line And The Fault Lines Occurs At The Boundary Of Tectonic Plates.

33
Q

Which Country Was Gorkha Earthquake Happening And What Day?

A
  • It Happened On The 25 April 2015.
  • It Happened In Nepal
34
Q

How Strong And Deep Was The Gorkha Earthquake and What Time DId The Earthquake Hit?

A
  • The Focus Was Only 8km Deep.
  • It Was a 7.3 Magnitude Aftershock
  • The Earthquake Occurred at 11:26 AM.
35
Q

How Far Was The Epicentre From Reaching The Capital Of Nepal?

A
  • It Was 60KM From Reaching Kathmandu.
36
Q

Name a Immediate Response Of Gorkha Earthquake?

A
  • 90% Of The Nepalese Army Mobilised To The Worst Hit Areas That Had Landslides Occurring.
37
Q

Name a Long-Term Response Of Gorkha Earthquake?

A
  • International Aid Was Provided By India and China And In Total They Gave $1 Billon To Help Nepal.
38
Q

Name a Primary Effect In The Gorkha Earthquake?

A
  • 1000s Of Houses Were Destroyed.
39
Q

Name a Secondary Effect In The Gorkha Earthquake?

A

-Landslides Killed a Further 250 People.

40
Q

What Caused The Gorkha Earthquake?

A
  • The Earthquake Occured on a Convergent Plate Boundary Between The Indian and Eurasian Plate Both Plates Collided.