Earthquakes Flashcards Preview

GCSE Physical Geography > Earthquakes > Flashcards

Flashcards in Earthquakes Deck (8)
Loading flashcards...
1

Why do you find earthquakes at the edge of plate boundaries

Because when friction occurs at plate margins, the movement then causes earthquakes to form

2

Focus

The point at which the earthquake happens below the ground surface

3

Epicentre

The point directly above the focus

4

Planning for an earthquake

1. Emergency kit/ supplies (water,food,torch,radio)
2.Tv and radio stations - broadcasting warning signs
3. Evacuation centres - can hold 2,000 if people need to evacuate
4.Cross bracing protect people and building

5

Predicting earthquakes

Seismometer - moniters earths tremors to know when to expect an earthquake

6

What is a Richter scale

Using scientific evidence (grounds movement)

7

What is a Mercalli scale

Based on impacts around the earthquake - could differentiate the effect on LEDCS and MECS

8

Describe the distribution of earthquakes

Earthquakes are commonly found in on the edge of plate boundaries (pacific ring of fire)