The complex nature of earthquake ground motion, Biology

In fact a real earthquake ground motion at a particular site is much more complicated that than the simple waveform depicted. It would be beneficial if we make comparison between the surface of the ground under the impact of an earthquake and the surface of the water in a pond. We can bring the surface of a pond in motion by just throwing few stones into it. The first few stones generate a series of circular waves which begin to collide with each other and  after some time these collisions,  which of circular waves which begin to collide with each other and after some time these collisions, which are called interference patterns, begin to dominate over the circular pattern of waves. After a short while, the whole surface of the water is full of ripples, and we cannot recognize the original waves. In the event of an earthquake also, the ground vibrates in a similarly complex manner due to interaction among the waves of different of different amplitudes and frequencies.

The complex nature of earthquake ground motion can be attributed to the following three factors:

1.      The seismic waves created during the fault movement are not all of a uniform character.

2.      During their movement through the earth from the fault to the site of any building, the waves get modified by the rock and soil media through which they pass.

3.      Moreover, when these waves reach the building site they are further modified de pending upon the characteristics of the ground and the soil beneath the building.

These three factors are known as source effects, path effects and site effects.

 

 

Posted Date: 7/12/2012 3:42:46 AM | Location : United States







Related Discussions:- The complex nature of earthquake ground motion, Assignment Help, Ask Question on The complex nature of earthquake ground motion, Get Answer, Expert's Help, The complex nature of earthquake ground motion Discussions

Write discussion on The complex nature of earthquake ground motion
Your posts are moderated
Related Questions
Q. Number of risk factors of gout? A number of risk factors are related to the development of hyperuricemia and gout. These factors include: • Hereditary: Genetics may play

Find the electric potential, taking zero at infinity, at the upper right corner (the corner without a charge) of the rectangle in the figure. (Let y = 3.7 cm and x = 6.7 cm.)

What else is carried in the plasma? In addition to proteins, plasma having salts (ions), glucose, lipids and amino acids, hormones, carbon dioxide and urea

A post-operative client has an order for Demerol 35 mg and Phenergan 12.5 mg. The nurse reviews the labels of the medications. Injectable Demerol (meperidine hydrochloride) is prep

Determine Indicators used in monitoring and surveillance? Various simple indicators may be used such as: 1) Weight-for-height 2) Body mass index (weight in kg/square of h

Explain Food Applications of xanthan Xanthan gum is mainly considered to be non-gelling and used for the control of viscosity due to the tenuous associations, endowing it w

Q. What are the three kinds of respiration in which the circulatory system transports gases? The circulatory system has an important role in branchial respiration, cutaneous re

Open Type of Circulatory Systems Several non-chordates have thus an open type of circulation - a system in which blood pumped by the heart empties through an artery into an op

Define Hydration Properties of Proteins? General conformation of individual proteins in solution is largely dependent on the interaction with water. The progressive hydration o

diagram of phyllum protozoa