Volcano Articles

• Asteroids, Comets and Meteors
  Near-Earth Object Impacts
  Mars
  Solar System
  Geomagnetic Storms
  Sun
   
  

  Meteorite

  A meteorite is a small extraterrestrial body that impacts the Earth's surface. While in space they are called meteoroids, and while falling through Earth's atmosphere they are called meteors. These ... > more
• Oceanography
  Floods
  Geography
  Landslides
  Global Warming
  Ecology
   
  

  Coast

  The coast is defined as the part of the land adjoining or near the ocean. A coastline is properly, a line on a map indicating the disposition of a coast but the word is often used to refer to the ... > more
• Zoology
  Rodents
  Animals
  Exotic Species
  Earth Science
  Mammals
   
  

  Lemming

  Lemmings are small rodents, usually found in or near the Arctic. Together with the voles and muskrats, they make up the subfamily Arvicolinae (also known as Microtinae), which forms part of the ... > more
• Mining
  Geology
  Earth Science
  Geochemistry
  Oceanography
  Earthquakes
   
  

  Quartz

  Quartz is one of the most common minerals in the Earth's continental crust. It belongs to the hexagonal crystal system, and is made up of silica (SiO2) tetrahedra. Quartz has a hardness of 7 on the ... > more
• Geography
  Global Warming
  Oceanography
  Earth Science
  Weather
  Climate
   
  

  Bermuda Triangle

  The Bermuda Triangle (also known as Devil's Triangle) is a 1.5-million-square-mile area of ocean roughly defined by Bermuda, Puerto Rico, and the southern tip of Florida. Some believe it is a ... > more
• Near-Earth Object Impacts
  Earth Science
  Geology
  Earthquakes
  Environmental Issues
  Geomagnetic Storms
   
  

  Impact event

  Impact events are caused by the collision of large meteoroids, asteroids or comets (generically: bolides) with Earth and may sometimes be followed by mass extinctions of ... > more
• Global Warming
  Ice Ages
  Climate
  Geography
  Oceanography
  Snow and Avalanches
   
  

  Antarctic ice sheet

  The Antarctic ice sheet is the largest single mass of ice on Earth. It covers an area of almost 14 million square km and contains 30 million cubic km of ice. Around 90 percent of the fresh water on ... > more
• Earthquakes
  Natural Disasters
  Tsunamis
  Floods
  Geology
  Global Warming
   
  

  Seismic retrofit

  Seismic retrofitting is the modification of existing structures to make them more resistant to seismic activity, ground motion, or soil failure due to earthquakes. Seismic retrofit techniques will ... > more
• Hurricanes and Cyclones
  Severe Weather
  Weather
  Geography
  Storms
  Climate
   
  

  List of Category 5 Pacific hurricanes

  This is a list of Category 5 Pacific hurricanes. A Category 5 hurricane, on the Saffir-Simpson Hurricane Scale, is the most catastrophic hurricane that can form. They are rare in the eastern Pacific ... > more
• Wildfires
  Natural Disasters
  Forest
  Environmental Science
  Oil Spills
  Ecology
   
  

  Smoulder

  Smouldering (or smoldering in American spelling) combustion is a flameless form of combustion, deriving its heat from oxidations occurring on the surface of a solid fuel. Common examples are the ... > more

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