2nd Form Geography EOY Flashcards
(18 cards)
Definition of a Tsunami
Giant waves caused by earthquakes or volcanic eruptions under the sea
Impacts of tsunamis
Loss of Life
Displaced people
Major destruction
Economic Impacts
New Zealand 2011 Earthquake Plate Boundary
Conservative
Involved the Pacific and Australian Plate
Richter Scale
A Logarithmic scale that calculates earthquakes size by using seismographs
Mercalli scale
Assesses destruction and damage instead of the magnitude
Seisometer
A device which measures the motion of the ground.
What is the epicentre?
The earthquakes location directly on the ground.
Where is the focus?
The location the earthquake starts.
Temperature of crust
5 - 900 *C
Temperature of mantle
900 - 1600 *C
Temperature of Outer Core
4,000 - 5,000 *C
Temperature of Inner Core
5,000 - 6,000 *C
What is the centre of the earth made from
Iron and Nickel
Why are deserts located where they are
Equator = low pressure. 90* north and south and 30* high pressure
Does Low Pressure cause rain?
Yes
What is latitude
How far north or south something is
Temperatures decrease by ___ for every ____ metres
1*C and 150M
Define Extreme Tourism
Tourism that involves engaging in dangerous and risky activities.
