Question

How is the magnitude of the earthquake related to the collapse of houses

Answer 1

Richter's scale is a measure of the earthquake energy output, greater the energy output stronger and destructive is the quake.
The scale is designed from 0 to 10 where 0 to 3 scale earthquakes are hardly felt and from 7 it starts to be highly destructive.

At same magnitude a number of earthquakes can occur, so it's difficult to say exactly, which one is having least magnitude. An earthquake of 2.1 on the Richter Scale was recorded in Chikkamgaluru, Karnataka in 2015 may be considered as one of the least, as magnitude of 2.1 on the Richter Scale is hardly felt.

Hope this information will clear your doubts about the topic.

Answer 2

1.The high magnitude of the earthquake leads to the collapse of house on a large scale

2.The secondary waves reach the earth's surface after the primary waves are reached .These waves are more destructive than the primary waves

3. The particles lying in the way of these waves move up and down in the direction of energy transfer . As it effect the houses on the earth's surface move up and down and collapse