My Earthquake by Natasha Littos

Contents

Introduction

Cause or earthquakes

How earthquakes are measured

An example of an earthquakes

Summary

Thanks for watching

Introduction

An earthquake is a natural disaster that is caused by energy in the earth’s crust that creates seismic waves.

Cause of earthquakes

Earthquakes are caused by a sudden release of energy in the earth’s crust. The different types are convergent, divergent and transform. Convergent

How earthquakes are measured

Earthquakes are measured by seismographs. They are also measured by the Richter scale and the Mercalli scale. The Richter scale was made by Charles Richter, and the Mercalli scale by Guiseppe Mercalli.

Mercalli Scale ale

Richter Scale

Example of an earthquake

The Japanese earthquake occurred on 11th March 2011 at 2:46 pm. 15,854 people died, 26,992 were injured and 3,115 missing. The magnitude was 9.0.

Summery

• An earthquake is a natural disaster

• Cause of earthquakes is sudden release of energy from earths crust

• How earthquakes are measured by Richter and Mercalli scale

• Japan earthquake was large earthquake measured at 9.0

Thankyou for watching I hope you learnt as much as I did!!!!

By Natasha Littos