Page 7 - Microsoft PowerPoint - 12.1 INTRODUCTION TO NATURAL DISASTER AND EARTHQUAKE

How it is measured?

 Earthquakes are measured in the Richter Scale.
The scale starts from magnitude 1.

 Earthquake with magnitude 2 in the scale or less

are weak and can be felt only a little.

 Earthquake with magnitude 5-6can cause slight

damage.

 Earthquakes with magnitude 7 and above can

cause heavy destruction.

 The instrument used to measure Earthquake is

known as the Richter scale. The Richter scale
measures the magnitude of an earthquake (how

powerful it is). It is measured using a machine

called a seismometer which produces a

seismograph.