Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geog Physical AS > Tectonics Case Studies > Flashcards

Tectonics Case Studies Flashcards

1
Q

Christchurch earthquake location

A
  • Canterbury region
  • South Island
  • epicentre 6 miles south east of Christchurch
  • shallow focus 5.95km
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Christchurch earthquake key facts

A
  • liquefaction around eastern suburbs 400,000 tonnes of silt.
  • conservative plate margin, pacific and Australian plate caused locked fault.
  • when released caused 6.3 mag earthquake
  • shockwaves amplified by nearby solid rock
  • soft upper layer 30m thick slapped back down on lower layer.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Christchurch earthquake impacts

A
  • 185 deaths
  • $40bn in damage
  • 50% cbd buildings destroyed
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Christchurch earthquake responses

A
  • CPT (cone penetrometer testing) susceptibility to liquefaction.
  • new buildings stone grid columns to stabilise and redistribute weight.
  • GeoNet setup by government to quake proof homes
  • recovery assistance centre
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Haiti earthquake location

A
  • occurred on West Indian island of Hispaniola
  • Caribbean
  • south of USA
  • west of Mexico
  • epicentre 25km west of capital
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Haiti earthquake key facts

A
  • Haiti lies on boundary of Caribbean and North American plates, slippage along conservative boundary caused magnitude 7 earthquake.
  • aftershocks reaching magnitude 5.9
  • unconsolidated rock under Port au Prince caused amplified shaking
  • 13km focus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Haiti earthquake key impacts

A
  • $8bn in damage
  • 3.5 mil affected
  • 220,000 dead
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Haiti earthquake responses

A
  • 989 business grants given out
  • international aid from:
    UNICEF $575 mil
    Netherlands, Spain, china.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Nepal earthquake location

A
  • Southern Asia
  • north west of Thailand
  • epicentre 50 miles north west of Kathmandu
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Nepal earthquake key facts

A
  • max intensity XI on mercalli scale
  • Australian and Asian convergent plate boundary
  • triggered avalanche on Mount Everest
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Nepal earthquake key impacts

A
  • halted development only 5% of houses have been rebuilt

- $6bn in damage

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Nepal earthquake responses

A
  • Bangladesh dispatched relief materials
  • UNICEF fundraising
  • cash-for-work project aimed to provide jobs by doing community work such as clearing debris
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Indian Ocean tsunami location

A
  • tsunami in the Indian Ocean
  • hit coast of sumatra in Indonesia
  • south east Asia
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Indian Ocean tsunami key facts

A
  • India and Burma plates convergent (oceanic-continental)
  • earthquake mag 9 heaved ocean floor by 15m
  • greatest fault ever 1500km
  • several hours between earthquake and tsunami however no warning s in place
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Indian Ocean tsunami key impacts

A
  • 300,000 dead
  • thailand lost $25mil per month in tourism
  • freshwater supplies contaminated by salt water
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Indian Ocean tsunami responses

A
  • Indian Ocean tsunami warning and mitigation system set up to detect seismological changes
17
Q

Tohoku tsunami 2011 location

A
  • region on the island of Honsh

- northern Japan

18
Q

Tohoku tsunami 2011 key facts

A
  • mag 9 earthquake caused tsunami which struck offshore Japan
  • convergent plate margin (Pacific-Eurasian)
  • tsunami caused cooling failure and nuclear meltdown where radioactive water leaks into the ocean
19
Q

Tohoku tsunami 2011 key impacts

A
  • $300bn in damage

- radiation from nuclear power plant contaminated oceans

20
Q

Tohoku tsunami 2011 responses

A
  • residents received on eminute warning, trains were stopped and people were sent text messages
  • early warning system prevented deaths
21
Q

Eyjafjallajokul volcanic eruption 2010 location

A
  • north west UK
  • south Iceland
  • under eyjafjallajokull ice caps
22
Q

Eyjafjallajokull volcanic eruption 2010 key facts

A
  • Eurasia and North American plate
  • divergent plate margin
  • formed disruptive plume of volcanic ash and gas
23
Q

Eyjafjallajokull volcanic eruption 2010 impacts

A
  • airline industry lost £1bn due to ash cloud
  • large amount of co2 released
  • residents in southern Iceland were evacuated from homes as flooding due to eruptions melting ice
24
Q

Eyjafjallajokull volcanic eruption 2010 response

A
  • closure of local airport
  • evacuation of residents
  • aid to those impacted

Geog Physical AS (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions