Research round #1 Natural Disasters

The unprecedented movement of Earth causes many of deadliest natural disasters like Earthquakes, Tsunamis, there are some most dangerous natural disasters on Earth accroding to most websites on Google, it shows that top five dangerous disasters are earthquake, hurricanes, tsunamis, lightening and tornadoes. 

"Massive plates fit together like puzzle pieces deep beneath the Earth. When a plate shifts along one of the fault lines that join them, a violent upheaval takes place on the planet's surface, experienced by us as an earthquake. Countries as far flung as Iran, Chile, Japan and New Zealand are particularly vulnerable to this seismic activity."(1)

Here are some well known deadliest earthquakes

1556 Shaanxi earthquakeJanuary 23, 1556Shaanxi, China820,000–830,000 
1976 Tangshan earthquakeJuly 28, 1976Hebei, China242,769[41][42]
1920 Haiyuan earthquakeDecember 16, 1920Ningxia–Gansu, China273,400
2004 Indian Ocean earthquakeDecember 26, 2004Indian Ocean, Sumatra, Indonesia230,210+
2010 Haiti earthquakeJanuary 12, 2010Haiti100,000–316,000

(2)

Why do earthquakes happen?

Earthquakes are usually caused when rock underground suddenly breaks along a fault. This sudden release of energy causes the seismic waves that make the ground shake.(3)

Earthquakes may last only a few seconds or may continue for up to several minutes. They can occur at any time of the day or night and at any time of the year. 

"Most earthquakes are too small to affect us. Earthquakes of larger magnitude, however, which release more energy during fault ruptures, can be hazardous, exposing us to the risk of harm or loss." (4)

Intense ground shaking can generate many sources of potential harm or loss. In the natural environment, such hazards include the following:

  • Landslides or avalanches.
  • Surface faulting, in which the surface of the ground along one side of a fault is displaced horizontally or vertically in relation to the ground on the other side.
  • Tsunamis, which can be triggered by earthquake-induced underwater landslides or by surface faulting that occurs on the floor of the ocean.
  • Liquefaction, in which loosely packed, water-logged soils temporarily lose strength and stiffness and behave like liquids, causing the ground to sink or slide.
  • Flash floods, which can be caused by liquefaction near rivers or lakes.(4)

 

 

 

 

http://www.cbc.ca/news2/interactives/world-quakes/ (1)

https://en.wikipedia.org/wiki/Lists_of_earthquakes (2)

http://www.geo.mtu.edu/UPSeis/why.html (3)

https://www.fema.gov/why-earthquakes-occur (4)

For my next round of post, I'll be researching on can we predict earthquake?

Original Post

This is a really cool topic!

I found this ted video on tsunamis, it is just the basics but it is interesting. http://ed.ted.com/lessons/how-...is-work-alex-gendler

What exactly about natural disasters are you looking into, because there are a lot of different ways you could go with this. Are you going to compare the severity of different types of natural disasters? Look into how to prevent or protect against these disasters?

Lots of different ideas, Good Luck can't wait to see what you find!

Hello Jason,

I do Geography and i really like your project  with the fact that we learn that in it.These disasters continues  affecting many countries in the world. For instance if I can  remember well in the beginning of this year we experienced an earthquake that costed many lives as well as properties worth a lot of money.This has contributed negatively to the distribution of people as many people wouldn't like to live in ares prone to such disasters. I would really like it if you also considered things like how can we stop or minimize these natural disasters.

I look forward to your next posts.

http://www.factmonster.com/ipka/A0775896.html

Hi Jason,

This is some very relevant and informative research. It is quite surprising how little people know about earthquakes and how little people are prepared for them. Out of curiosity, do you plan on researching and providing information on earthquake preparedness in the future? It does not directly connect with your whole natural disasters topic but I can see it being very relevant to your research on earthquakes and also very informative to everyone who reads it.

I found some links that may help you with finding information on how to predict earthquakes.

http://www.bbc.co.uk/schools/g...g_hazards_rev2.shtml

http://dev.nsta.org/evwebs/1223/future.htm

I hope that these help and good luck with your research!

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