Natural disasters
Upcoming SlideShare
Loading in...5
×
 

Natural disasters

on

  • 414 views

plzzzzzz send some comments

plzzzzzz send some comments

Statistics

Views

Total Views
414
Views on SlideShare
414
Embed Views
0

Actions

Likes
1
Downloads
23
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

Natural disasters Natural disasters Presentation Transcript

  • An earthquake is a sudden movement of a part of the earths surface . It is caused by severe shock waves that travel through the solid rocks from under ground to the surface .
  • A STRONG QUAKE IS DETERMINED USING AN INSTRUMENT CALLED A SEISMOGRAPH AND THE INTENSITY OF AN EARTHQUAKE CAN BE DETERMINED FROM THE RECORDING MADE BY A SEISMOGRAPH USING A SCALE KNOWN AS THE RICHTER SCALE .UNLIMITED LEVELS CAN BE MEASURED ON THE RICHTER SCALE .THE LOWEST VALUE OR 1 INDICATESN A QUAKE THAT IS ALMOST NOT FELT AND A VALUE OF 8 OR HIGHER INDICATES A MASSIVE EARTHQUAKE .
  • EFFECTS OF AN EARTHQUAKE Buildings may develop cracks or even fall down Roads and bridges get damaged . Trees get uprooted Many loose their lives An undersea earthquake causes tsunami It can cause landslides and fires