Volcanos and Earthquakes

Question 1

What is the units for magnitude

Answer 1

Mw

Question 2

What is the Epicentre

Answer 2

The point in which is directly above the focus of the Earthquake

Question 3

What is the focus of an Earthquake

Answer 3

The exact point in which the earthquake occurs. It is normally bellow the earths surface normally about 25km deep

Question 4

What is shield volcano

Answer 4

A very flat, soft sloping volcano that contains very runny lava that is also very explosive. eg Mount Fuji
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Question 5

What is a composite volcano

Answer 5

A volcanos that has steep edges and it contains really thick gooey magma

Question 6

What is one of the main ways people die from volcanoes

Answer 6

Getting caught in a very toxic ash cloud that can choke you in a matter of minutes

Question 7

What is the percentage of the worlds volcanoes in the Pacific Ring of Fire

Answer 7

80%

Question 8

Where is Mauna Loa and why is it special

Answer 8

In Hawaii and it is different because there aren’t any tectonic plate margins near it and is a hotspot where magma suddenly bursts through the crust

Question 9

What is a better word than continental crust

Answer 9

Lithosphere

Question 10

What is the mantle made of

Answer 10

Melted magma and it contains convection currents which can move tectonic plates to create earthquakes

Question 11

Definition of continental drift

Answer 11

The gradual movement of the continents across the Earth’s surface through geological time

Question 12

What is Pangaea

Answer 12

The supercontinent that existed about 280 million years ago

Question 13

What are the 7 major tectonic plates

Answer 13

Pacific, Eurasian, North and South American, African, Indo-Australian, Antarctic