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Geography > Restless Earth > Flashcards

Restless Earth Flashcards

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1
Q

The runny type of lava is called

A

Basalt Lava

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2
Q

The capital city of Haiti

A

Port au Prince

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3
Q

A deep depression created by a super volcanic eruption

A

Caldera

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4
Q

The name of the Kobe tower that was protected with retroengineering

A

Osaka Bay tower

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5
Q

The denser of the two plates

A

Oceanic

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6
Q

The thick type of lava

A

Andesite

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7
Q

The state Mt Helens is situated in

A

Washington

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8
Q

The date of the Haiti earthquake

A

13 Jan 2010

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9
Q

The name of the motorway in Kobe that collapsed in the quake

A

Hanshin Expressway

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10
Q

A flat gentle sided volcano

A

Shield

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11
Q

The point on the earth where earthquakes are at their most powerful

A

The epicentre

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12
Q

The secondary threat created when extensive ash mixes with water

A

Lahars

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13
Q

A sudden, quick, and very hot movement of gases, dust, ash and/or rock mixtures due to volcanic eruptions

A

Pyroclastic flow

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14
Q

The scale that measures impact of earthquales

A

Mercalli scale

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15
Q

The date of the Mt St Helens eruption

A

18 May 1980

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16
Q

The name of longitudinal waves that are released from the focus first

A

P(rimary) waves

17
Q

The name of the transverse waves that arrive at the detector second

A

S(econdary) waves

18
Q

The name of the plug in the top of a volcano that causes pressure to build

A

Lava dome

19
Q

The amount of killed by the Mt St Helens eruption of 1980

A

57

20
Q

Measures how much sulphur dioxide is released from the vents of the earth

A

COSPEC / Optical Correlation Spectrometer

21
Q

How many gas masks were handed out after the eruption of Mt St Helens

A

2 million

22
Q

The type of plate boundary that does nothing but create earthquakes

A

Conservative

23
Q

The point inside of the crust where pressure is released and seismic waves come from.

A

Focus

24
Q

When the crust is forced upwards by an earthquake measuring over 9 on the Richter Scale.

A

Megathrust

25
Q

The withdrawal of the ocean minutes before a tsunami hits land

A

Drawback

26
Q

A special type of wave where the entire depth of the sea or ocean is set in motion by an event, often an earthquake, which displaces the water above it and creates a huge wave.

A

Tsunami

27
Q

What are the facts for the Japanese tsunami

A

Megathrust, measured 9.0 on the Richter scale, started with a destructive-subduction crust in pacific ocean,epicentre in Sendai, Japan, 10 metre tsunami wave

28
Q

A section of the earth’s crust where plumes of magma rise, weakening the crust. They are away from plate boundaries.

A

Hot spot

29
Q

An organisation based in the USA who survey and monitor volcanoes

A

USGS or United States Geological survey

30
Q

What happens to soil after a volcano

A

Fertile soil due to ash

31
Q

formation ocean trenches

A

fill in later

32
Q

foldmountains formation uses

A

ssd

33
Q

tsunami responses

A

b

34
Q

What is liquefaction?

A

The process of a liquid being formed from a solid (or gas).

Geography (9 decks)

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