Natural Disaster Articles

• Hurricanes and Cyclones
  Severe Weather
  Floods
  Natural Disasters
  Weather
  Oil Spills
   
  

  Hurricane preparedness for New Orleans

  Hurricane and flood preparedness in New Orleans has been an issue since the city's early settlement because of the city's location. Much of New Orleans was built on a delta marsh and sits below sea ... > more
• Volcanoes
  Natural Disasters
  Exotic Species
  Atmosphere
  Air Quality
  Geomagnetic Storms
   
  

  Volcanic ash

  Volcanic ash consists of very fine rock and mineral particles less than 2 mm in diameter that are ejected from a volcanic vent. Ash is created when solid rock shatters and magma separates into minute ... > more
• Geology
  Earthquakes
  Earth Science
  Natural Disasters
  Near-Earth Object Impacts
  Atmosphere
   
  

  Crust (geology)

  In geology, a crust is the outermost layer of a planet. The crust of the Earth is composed of a great variety of igneous, metamorphic, and sedimentary rocks. The crust is underlain by the mantle. ... > 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
  Accident and Trauma
  Natural Disasters
  Sports Medicine
  Healthy Aging
   
  

  Social effects of Hurricane Katrina

  The impact and aftermath of Hurricane Katrina led to one of the most severe humanitarian crises in the history of the United States. In addition to the over 1,300 fatalities caused by Katrina over ... > more
• Earthquakes
  Geology
  Earth Science
  Landslides
  Environmental Science
  Natural Disasters
   
  

  Geotechnical engineering

  Geotechnical engineering is concerned with the engineering properties of earth materials. Geotechnical engineers investigate the soil and bedrock below a site to confirm their engineering properties ... > more
• Geography
  Earthquakes
  Oceanography
  Geology
  Natural Disasters
  Tsunamis
   
  

  Oceanic trench

  The oceanic trenches are hemispheric-scale long but narrow topographic depressions of the sea floor. They also are the deepest parts of the ocean floor. Trenches define one of the most important ... > more
• Volcanoes
  Natural Disasters
  Geography
  Hurricanes and Cyclones
  Exotic Species
  Geology
   
  

  Mount St. Helens

  Mount St. Helens is an active stratovolcano in Skamania County, Washington, in the Pacific Northwest region of the United States. It is located 96 miles (154 km) south of the city of Seattle and 53 ... > more
• Earth Science
  Geology
  Near-Earth Object Impacts
  Earthquakes
  Environmental Issues
  Geomagnetic Storms
   
  

  Earth

  Earth often referred to as the Earth, Terra, the World or Planet Earth, is the third planet in the solar system in terms of distance from the Sun, and the fifth largest. It is also the largest of its ... > more
• Volcanoes
  Nature of Water
  Sports Science
  Natural Disasters
  Quantum Physics
  Tsunamis
   
  

  Pumice

  Pumice is a highly vesicular pyroclastic igneous rock of intermediate to siliceous magmas including rhyolite, trachyte and phonolite. Pumice is usually light in colour ranging from white, yellowish, ... > more

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