Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Earthquake creates seismic waves that travel through and around the surface of the earth. Seismic waves are the waves of energy caused by sudden breaking of rocks during an earthquake. These waves move in all directions with different velocities through the earth's layers, reflecting and refracting at each interface. These waves are mainly of two types, body waves and surface waves. Body waves can travel through the earth's inner layer while latter are restricted to near the earth's surface.
Body waves
These waves move through the earth's interior. Body waves have greater frequency than surface waves. These waves consist of two types namely longitudinal P waves and transverse S waves. P waves or primary waves are compressional waves which means that the material particles undergo extensional and compressional strain along the direction of energy transmission i.e. particles moves in the same direction that the waves is moving. P waves, like sound waves are able to move through both liquid and solid rocks. The P waves travel much faster than S waves and surface waves.
S waves or secondary waves are the waves directly following the P waves. These are also known as shear waves. They are most damaging waves which move near the earth's surface. As they move, S waves shear or cut the rock they travel through sideways at right angles to the direction of the wave and structures to vibrate from side to side. S waves can only move through solid rock not through liquid medium because liquid can be compressed but can't be sheared. S waves produce vertical and horizontal motion in the surface of earth, hence S wave are more dangerous than P waves.
Surface waves
Waves that travel only through earth's crust. Surface waves consist of two waves as love waves and Rayleigh waves. (fig.5.5). love waves move like S waves but with no vertical component. Rayleigh waves move both horizontally and vertically. These waves make a particle move in an elliptic path in the vertical plane with horizontal motion along the direction of travel of energy. These waves are usually recorded at a greater distance from the epicenter.
Valvular heart diseases : Congenital and acquired valvular heart diseases often require surgical intervention. 1 is well known that conservative surgery by valve repair gives bet
Tapetum - Anther Wall Layers Tapetum is the innermost and most important layer of the anther wall. It is generally composed of a single layer of cells. These cells completely
During Abutment Connection Implants should be tested for the presence of any mobility and the radiographs should be taken. These radiographs are very vital as they serve as the
How much SDS do you need for 50 ml of a 20% SDS solution in water(weight/ volume)? SDS is a solid.
Q. Revenue Recognition on Long-term Construction Projects? Revenue Recognition on Long-term Construction Projects Company identifies revenue from a long-term construction proje
Explain Theory or Principle of Determination of Coliforms? Coliforms are gram negative, non-spore forming, facultative anaerobic bacteria which produce acid and gas on lactose
Hypomagnesaemic tetany of calves Young calves in the age group of 2-8 weeks and fed whole milk or milk replacer are more likely to develop hypomagnesaemia due to inadequate ma
Explain the Nutritional Management of Eating Disorders? Good nutritional management of patients with eating disorders requires attention to a number of areas. It is important t
Linkage of Health With Development Health, in its comprehensive or holistic sense, refers to the state of completephysical, mental, social and spiritual well being of a person.
What do you mean by Advanced characters The traits, or characteristics, that an animal has that are not ancestral to the taxon. They appear later in the evolutionary history of
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd