Earthquakes Subsidence


An earthquake is a natural hazard which occurs when the ground shakes.
It is the violent movement of rocks.

 Subsidence is a phenomena that occurs in the Earth as it is displaced. Often found around areas of high oil activity. 
  Earth's Layers
Inner core
Outer core
Mantle
Crust - large tectonic plates and not one large , smooth, continuous layer. It is the outermost and thinnest layer of the Earth and is made out of rock.
The tectonic plates move, bump, and slide around causing energy build up below the plates. The energy that breaks free results in shaking of the Earth, in other words, an Earthquake.



Effects Of Earthquakes
Damage to buildings and infrastructure
Landslides
Fires
Tsunamis
Liquidification

Seismometers are used to record the seismic waves generated by an earthquake.
Magnitude is used to measure an earthquake's size and is related to energy.

2016


Popular posts from this blog

Organisms live in Volcano

Image
Volcanoes are an energy source that is extremely useful. Volcanoes carry immense amounts of potential and kinetic energy. The heat from a lava overflow at the crater is enough to melt any metal. Temperatures rise. It is known that after an earthquake, temperatures in water nearby rise and cause hot mud to spew to the surface with lava eruptions . www.mizzima.com/news/inside-burma/6260-rise-of-underground-water-temperature-causes-mud-volcano-eruptions.html A volcano is an opening or rapture on the crust or in the Earth's surface which allow hot gases, solid and lava to escape out of what is called a magma chamber.  http://en.wikipedia.org/wiki/Volcano What is the difference between photosynthesis and  chemosynthesis ? The atmosphere is several layers of air around earth. The layer nearest the Earth's surface is called the troposphere. Approximately 10 kilometers thick at the poles and 16 kilometers thick at the Equator. The troposphere is made up of oxygen, nitrogen,...
Read more

Hurricanes

The Hurricane season lasts through June to November in the West Indies. Old people say March onward. August and September are the peak months. Emergency shelters nearest to home is always available to the public. Trim loose branches around your home. Remove loose garbage bins and objects. Keep your supplies in a large waterproof kit. Do not forget your checklist: have food & water for at least 3-5 days, clothes and bedding supplies, documents and keys, photo identification is all important. Keep them handy for during an emergency these may be lost , damaged or stolen. Sanitation and hygiene supplies, equipment and tools, kitchen items, prescription and non-prescription medicine, first aid supplies and pet supplies. Make a list of items in and around your yard to bring in or tie down when a tropical storm or hurricane approaches. Keep hurricane shutters working, main electrical breaker in service. Clear clogged drains and loose gutters. Keep all gas and water supply valves closed ...
Read more

#tectonicallyformedislands

Unfortunately your browser does not support IFrames. More World News from ABC | JFK Assassination Remembered An island is a body of land surrounded by water and smaller than a continent. Tectonically formed islands are created. Created by movements of the earths crust. #tectonicallyformedislands Some islands have been formed millions of years ago and some are continuously forming. #largestisland  is Greenland http://worldbuildingschool.com/wp-content/uploads/2012/07/Island-Arc.jpg Note that Australia is more than three (3)times as large as Greenland. Islands make up the entire land area of countries. Philippines and Japan. Some islands are wildlife refuges and on some have millions of people living on them. Islands have definitely contributed to humans and animals moving along and living on the planet. http://www.joe.ie/tweet-of-the-day/incredible-pictures-as-volcanic-eruption-causes-new-island-to-form-off-japan/ The island is not very big, only 200 ...
Read more