The point of origin of an earthquake below the earth’s surface is called ______

Ritcher magnitude is the log to 10th base of maximum seismic amplitude recorded at what distance from epicenter?

The study of earthquakes is called ______

Type of L-wave in which the particle is of a complex nature is ______

The number of classes of earthquakes based on magnitude of Ritcher scale are ______

What is the characteristic of walls for quake resistant buildings?

What is the maximum depth of focus observed till date?

The seismic waves which are also called transverse waves are ______