Earthquakes
This presentation is the property of its rightful owner.
Sponsored Links
1 / 6

Earthquakes PowerPoint PPT Presentation


  • 118 Views
  • Uploaded on
  • Presentation posted in: General

Earthquakes. How do they occur? Nehal Murti. Earthquakes are very devastating as they destroy buildings and the lives of thousands of people. . Tectonic Earthquakes.

Download Presentation

Earthquakes

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Earthquakes

Earthquakes

How do they occur?

Nehal Murti


Earthquakes

Earthquakes are very devastating as they destroy buildings and the lives of thousands of people.


Tectonic earthquakes

Tectonic Earthquakes

An earthquake is the sudden release of energy in the earths crust. This causes seismic waves (tremors). Earthquakes are also caused by volcanic activity under the earths surface. Tectonic earthquakes occur where there is sufficient stored elastic strain energy to drive fracture propagation along a fault plane. In the case of transform or convergent type plate boundaries, which form the largest fault surfaces on earth, they will move past each other smoothly only if there are no irregularities along the boundary that increase the frictional resistance. Most boundaries do have such asperities and this leads to a form of stick-slip behaviour.

Earthquakes are measure on the seismograph(seismometer). The magnitude of an earthquake is determined by the Richter scale.


Types of tectonic earthquakes

Types of Tectonic Earthquakes


  • Login