Engitek.com

All  Engineering and Technology Information in One Place.....

Home

About This Site

Sections  Directory

Search This Site

Privacy Policy

For Discussion of These Topics + Visit  the New Engitek Science and Technology Forum

 

Tired of looking for a job?, Cansado de buscar trabajo?

 

Semiconductors Devices

 

Electronics Technology Information Sites

 

Science and Tech Forum

 

Electronics Engineering Information by Categories

 

Engineering and Science Software

 

Free Science-Tek Magazines and Publications

 

Regulatory Offices and Agencies and Standards

 

Patents  Information

 

Prototypes Developing Houses, Devices and Tools

 

IC’s Foundries  and IC Development Services

 

Certification Labs

 

Operation Manuals

 

Physics Units Converter Calculators

Convert any type of unit into any other of any system or scale

 

Alternative Energies Tutorials:

Biofuels

Ocean Energy

Wind Energy

Solar Energy

Geothermal

 

Lean Manufacturing Tutorials:

The Seven Causes of Waste

The 5S

The 5 Why’s

The 4 M’s +1

Cause Effect / Fish Diagram  

The 4W’s +H+W

DMAIC

FMEA

Project Charter Example

Value Stream Mapping Introduction and Icons

Current or Present State Map

Future Sate Mapping

Cell Production

Kanban Production System

 

EarthquakesTutorials

 

Electronics and Electromechanical Distributors

 

Jobs Portal

Easily find your dream Job

 

Technology News

 

Science News

 

Business News

 

Electronics, RF and Communication Concepts

Rsistors and capacitors colors code

The Logarithm

The bel, decibel , the dbm and the dbmv

Electrical noise definition and Thermal noise

Signal to noise ratio

CONTENT

Lowest Prices for Solar Cells

Best Solar Energy Books

Lowest price Solar Panels

Wind Turbines and Parts

Best Wind Energy Books

Search this site

Para nuestros amigos de habla hispana, los invitamos a visitar el portal tecnológico en español:

www.industriaytecnologia.com

 

 

<< Continue from previous page

 

 

Body Waves

Body wave are waves that travel from the interior of the Earth toward the surface, they are compose by two kind of waves P waves and and S waves

P Waves

“P” Waves, also called Primary Waves have elastic traveling characteristics as sound waves, they can travel in gas, liquid or solids like on earth, These waves are the first to be detected by seismographs and alarms. These are compression waves classified as body waves, these waves travel from the inner Earth to the surface.

 

 

 

 

 

 

 

 

 

 

 

 

 

S Waves

“S” Wave also called Secondary Waves travel with amplitude perpendicular to their propagation direction, as showed in the picture, these are classified as body  waves, they also travel from the earthquake epicenter toward the surface, these  waves are more destructive than the primary waves but fortunately travel at lower speed.

 

 

 

 

 

 

 

 

 

 

 

 

Surface Waves

Surface wave are waves that travel near or at the surface of the earth on a horizontal path, waves in this category are Love and Raleigh waves.  

 

Love Waves

Love waves are surface waves with a transversal and longitudinal component that travel horizontally to the Earth surface,  are produced by the circular motion of particles on a clockwise direction. The particles do not travel, they do communicate the energy in circular motion generating the waves as seen on water and liquids.

 

 

 

 

 

 

 

 

 

 

 

 

 

Raleigh Waves

Raleigh waves are also surface waves in solids with transversal and longitudinal components in which the wave is produced by an counter-clockwise elliptic movement of the particles, as opposite to the circular clockwise motion in the love waves, these waves are highly destructive.  

 

 

 

 

 

 

 

 

 

 

 

 

Continue on next page >>

Basic Earthquake Glossary, Part 2

Force

Force

Impact

Force

Earth Surface Shaking in Both Directions

Wave

Propagation

Impact Force

Earth Surface

Wave Traveling

Direction

The effect of the P waves on the earth surface is an up and down movement

Compression wave, time 1

Traveling compression

wave at time 2

Wave Propagation

Direction

Time 1

Time 2

Time 3

     Love Waves Train

Raleigh Waves Train

Direction