Powerpoint Presentation On Earthquake
These shadow zones reveal the presence of concentric layers within the Earth, recognized by changes in seismic wave velocities at discontinuities. The height of the largest amplitude is converted to a numeric magnitude value using a conventional logarithmic scale. Clipping is a handy way to collect important slides you want to go back to later. Earthquakes have destroyed whole cities. Three seismograph stations are required.
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Earthquakes usually happen in the morning. You will better and more capable of helping other. Keep away from beaches and low banks of river. It is one on which the displacement of the far block is to the left when viewed from either side.
Earthquakes are the shaking rolling or sudden
Earthquakes constitute one of the worst natural hazards which often turn into disaster causing widespread destruction and loss to human life. When the break occurs, the stress is released as energy, which moves through the Earth in the form of waves, which we feel and call an earthquake. If in a store, move away from shelves.
Can Earthquakes be Predicted? If in the kitchen, turn off appliances and take cover. Turn off the water, gas and electricity. Decreased elasticity accounts for decreased seismic wave velocity in the low-velocity asthenosphere. Earthquakes can be felt over large areas although they usually last less than one minute.
Conduct earthquake drills. Prepare a kit for your business. The national and state governments quickly provided assistance in many forms including cash, medical supplies, communications teams, shelters, food, clothing, transport and relief workers. Earthquake definition and causes provided as noted by World Book Online.
It was discovered when it was noticed that seismic stations received two sets of P- and S-waves. This is an image of a seismograph, an instrument used to record the energy released by an earthquake. Search and Rescue teams soon arrived from Switzerland, United Kingdom, Russia and Turkey to find and rescue survivors buried under debris. Do not light matches or candles to look for leaks.
The asthenosphere is an important zone in the mantle because this is where magma is generated. This meant that the set below the discontinuity traveled deeper but more quickly than the shallower waves. It is the highest seismic zone. Ground move in circular motion. Make a list of medications, allergies and special equipment.
Knowing what to do before, during, and after an earthquake could save your life or prevent serious injury. Teach your buddy how to operate any special equipment. They result from the sudden release of energy in theEarth's crustthat createsseismic waves. You may notice hanging plants swaying or objects wobbling on shelves. Earthquakes can also occur within plates, although plateboundary earthquakes are much more common.
Time-distance graph showing the average travel times for P- and Swaves. Check for gas and water leaks. Turn off water if damage occurred. Secure heavy furniture, appliances, hanging plants and water heater.
Inventory your neighborhood skills and resources. Most of the disastrous earthquakes belong to this category and occur in areas of great faults and fractures. Install smoke detectors and replace batteries. Related studies, unfortunately, indicate that most people would probably not heed a short-term earthquake warning. How can the hazardous consequences of earthquakes be minimized?
Research involves laboratory and field studies of rock behavior before, during, and after large earthquakes, as well as monitoring major active faults. If outside, move away from buildings, wires, and windows.
Most of Earth's internal heat is generated by radioactive isotope decay in the mantle. Make a plan with family and neighbors. If standing, sit down so you wont fall down. Secure anything that can move, break or fall when your house starts to shake. This is why tsunamis cause so much damage.
What to do after an earthquake. Death toll about one lakh in Pakistan and nearly in India. An area's geology, earthquake magnitude, the type of building construction, and duration of shaking determine the amount of damage caused. What are Earthquakes - What are Earthquakes?
Do you have PowerPoint slides to share? They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. Most of the presentations and slideshows on PowerShow. The primary cause of an earthquake is faults on the crust of the earth. Earthquakes happen in both the day and the night.
Store heavy and breakable objects on low shelves. It is included in the moderate seismic zone.
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