1.Identify the global spatial distribution of your selected geomorphic hazard Earthquakes occur all the time all over the world, in both along plate edges and along faults. Most earthquakes occur along the edge of the oceanic and continental plates. The outer layer of the planet is made up of several pieces which are called plates. The plates under all the oceans are called oceanic plates and the rest are continental plates. The plates are moved around by the motion of a deeper part of the earth which is the mantle that lies underneath the crust. These plates are always bumping into other, pulling away from each other, or go past each other. The plates usually move at about the same speed that your fingernails grow. Earthquakes usually occur…show more content… include hand-drawn diagrams to accompany your description
Earthquakes are usually caused when the rock from the underground suddenly breaks along a fault. This sudden release all of the energy causes the seismic waves which are the waves of energy caused by the sudden breaking of rock within the earth or explosion. That make the ground shake. When two blocks of rock or two plates are rubbing or touching against each other, they stick a little. When the rocks break, an earthquake occurs.
Most earthquakes occur on the edge of plates, especially where one plate is forced under another such as happens off Sumatra or past another as occurs in California. Some regions have more earthquakes than others with 80% of all recorded earthquakes taking place around the edge of the Pacific Plate, in New Zealand, Papua New Guinea, Japan, Canada, USA and South America.
Earthquake vibrations travel very fast, up to 14km/s. The fastest seismic waves take less than 20 minutes to reach the other side of the earth, almost 13 000km!
3.Describe the short-term impacts of the…show more content… Included in casulaties are twenty students of philippine christian college which collapsed during class hours, with one hundred and fifty persons still trapped. Fear of many more people still trapped underneath collapsed buildings. In baguio several establishments severely affected including two universities and two hotels. Heavy damage to infrastructure with landslides rendering kennon and naguilian roads leading to baguio impassable. At least five bridges in regions (pangasinan, dagupan city, la union and ilocos sur) were also severely damaged. Similarly, in region iii (nueva, ecija, tarlac). national response so far including mobilization of disaster units down to municipal level. Military units also sent medical supplies and rescue equipment to affected area. Philippine coast guard ordered to evacuate residents along shoreline in anticipation of possible tsunamis. Department of social welfare and development airlifting ready-to-eat-food to baguio. Philippine national red cross fielded first aid teams with units of blood. The US defence department also sent an air force search and rescue team on the 18 of July. Philippines govt requests international offers of
