Earthquakes
By Kate Harptead
Magnitude Earthquake Effects Estimated Number
Each Year
2.5 or less
Usually not felt, but can be recorded by
seismograph.
...
Class Magnitude
Great 8 or more
Major 7 - 7.9
Strong 6 - 6.9
Moderate 5 - 5.9
Light 4 - 4.9
Minor 3 -3.9
The epicenter is the point on the Earth's
surface that is the point where an earthquake
originates.
With earthquakes, the ...
The intensity of ground shaking depends on:
• The kind of rock/soil it is around the epicenter. In
general, loose sediment...
October 09, 2013
10:01
Close to Jurm, Badakhshan, Afghanistan
139 miles in depth
4.0 magnitude
It happened in the mountain...
59 miles north of Awaran, Pakistan
September 28, 2013
07:34 AM
Epicenter was 8 miles underground 6.8 magnitude
As you can ...
Bela, Balochistan, Pakistan
7.7 magnitude 70 miles deep
September 24, 2013
11:29 AM
More than 350 people were
injured and ...
The Tonga Island earthquake
8.0 earthquake May 03, 2006
3:26
34.2 miles deep
It was in the water and
caused a tsunami. Onl...
Earthquakes
Earthquakes
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Earthquakes

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Earthquakes

  1. 1. Earthquakes By Kate Harptead
  2. 2. Magnitude Earthquake Effects Estimated Number Each Year 2.5 or less Usually not felt, but can be recorded by seismograph. 900,000 2.5 to 5.4 Often felt, but only causes minor damage. 30,000 5.5 to 6.0 Slight damage to buildings and other structures. 500 6.1 to 6.9 May cause a lot of damage in very populated areas. 100 7.0 to 7.9 Major earthquake. Serious damage. 20 8.0 or greater Great earthquake. Can totally destroy communities near the epicenter. One every 5 to 10 years
  3. 3. Class Magnitude Great 8 or more Major 7 - 7.9 Strong 6 - 6.9 Moderate 5 - 5.9 Light 4 - 4.9 Minor 3 -3.9
  4. 4. The epicenter is the point on the Earth's surface that is the point where an earthquake originates. With earthquakes, the epicenter is directly above the point where the fault begins to crack, and in most cases, it is the area of greatest damage.
  5. 5. The intensity of ground shaking depends on: • The kind of rock/soil it is around the epicenter. In general, loose sediment is more likely to have intense shaking than solid bedrock. • Size of the earthquake. In general, the larger the earthquake, the more intense is the shaking is. • Distance from the epicenter. • Damage to structures from shaking depends on the type of construction. a) Concrete and masonry structures are brittle and more likely to be damaged b) Wood and steel structures are more flexible and less likely to be damaged
  6. 6. October 09, 2013 10:01 Close to Jurm, Badakhshan, Afghanistan 139 miles in depth 4.0 magnitude It happened in the mountains of Badakhshan and no one was affected by it. There wasn’t any buildings but the buildings in that area aren’t very safe for earthquakes.
  7. 7. 59 miles north of Awaran, Pakistan September 28, 2013 07:34 AM Epicenter was 8 miles underground 6.8 magnitude As you can see, these houses weren’t built well at all. They completely collapsed. Many of the buildings in that area are like this and ended up like this. Right now, 515 people were found dead and countless others injured.
  8. 8. Bela, Balochistan, Pakistan 7.7 magnitude 70 miles deep September 24, 2013 11:29 AM More than 350 people were injured and over 200 were dead. These homes were also poorly built and most collapsed. Many of the homes were hade of mud and stone. A new island also appeared because the plates moved so much that it could slide through.
  9. 9. The Tonga Island earthquake 8.0 earthquake May 03, 2006 3:26 34.2 miles deep It was in the water and caused a tsunami. Only 10 people died. The building fell with the tsunami and earthquake altogether. Not much could have been done to save the buildings.

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