Consider the following statement about earthquake – 1. Intensity of earthquake is measured on Mercalli Scale. 2. Earthquake’s magnitude is the measurement of energy released. 3. Magnitude of earthquake depends directly upon Amplitude of an earthquake waves. 4. Every integer on Richter Scale shows a 100 times increase in energy released. Which of the statements are true?

Consider the following statements : 1. The Richter scale is a logarithmic scale and so an increase of 1 magnitude unit represents a factor of 10 in amplitude. 2. Each integer reading of the Richter s…

Which of the following statements with reference to Richter scale is/are correct? 1. It is the intensity scale of an earthquake. 2. Richter indicates the amount of energy released during the earthqua…

Consider the following statements with reference to Secondary waves (S-Waves) generated during an earthquake : 1. They create troughs and crests in the material through which they pass. 2. The direct…

Which of the following statements regarding earthquakes is/are correct ? 1. The point on the Earth's surface directly above the focus is called the epicentre of the earthquake. 2. Earthquakes generat…

Consider statements regarding hypocentre: I. It is the point where the energy is released and is called the focus of an earthquake. II. It is the point where the earthquake starts and may be many kil…