PPT-EARTHQUAKES: WHY? AND HOW?

Content Purpose Explore the scientific theory of plate tectonics by describing how the movement of Earths crustal plates causes both slow and rapid changes in Earths surface including volcanic eruptions earthquakes and mountain building . -Black. Shensi, China. When did this happen?. January 23, 1556. How many people died?. It is estimated that 830,000 people where killed in it.. The geological effects that were reported where ground fissures, uplift, subsidence, liquefaction, and landslides.. Earthquake. – shaking and trebling that results from the movement of rock beneath Earth’s surface.. Plate movement causes earthquakes from stress and faults in Earth’s crust. When the rock breaks earthquakes happen. Comparing and contrasting earthquakes. Have compared the impacts of earthquakes on a . MEDC. and a . LEDC. .. Have considered development as a key issue in . earthquake response. .. By the end of this section, you will: . Essential . Questions. What are earthquake magnitude and intensity and how are they measured?. Why are data from at least three seismic stations needed to locate an earthquake’s epicenter?. Where are Earth’s seismic belts?. They Shape Our Landscape. As plates move, we may feel these movements as earthquakes. If there were no plate motions, our planet would not look like home. There would be no mountains, no valleys, no plateaus . . By : . Deavian. foster . Class : 5H. What is an earthquake?. A earthquake is a shaking of the earths crust and is a geological phenomenon . Earthquakes can cause intense vibration of the ground, soil liquefaction, and distortion of the ground. Earthquakes can happen almost anywhere but are most common along the boundaries of the tectonic plates. Earthquakes are primarily caused of movement of the tectonic plates. It lasts more than a few seconds.. Earthquakes. What if you knew the epicenter was . 572 . km from Vancouver?. Earthquakes. What if you ALSO know that it is . 884 . km from Prince Rupert?. Earthquakes. Finally, you also know that the epicenter is . Why you need to prepare for the next earthquake . Alaska has more earthquakes than any other region of the U.S. . And in fact is one of the most seismically active area of the world.. Great earthquakes (Earthquakes larger than magnitude 8) rock the state on average every 13 years since the 1900. . An . earthquake. is a shaking of the ground caused by the sudden movement of large blocks of rock along a fault. Earthquakes occur along faults.. A . fault. is a fracture, or break, in Earth’s lithosphere, along which blocks of rock move past each other.. What are Destructive Forces?. A destructive force is a process that lowers or tears down the surface features of the Earth. . Examples of Destructive Forces:. Destructive forces can occur in many ways. The following are common examples of destructive forces:. William Mackaness, Carol Blackwood, Charlotte Graves. Institute of Geography. School of GeoSciences. University of Edinburgh. Drummond St, Edinburgh EH8 9XP. william.mackaness@ed.ac.uk. Earthquakes. Measure on a Richter scale 1-7. Move it, move it !!. What are they?. Fault: a break or fracture in the crust of Earth.. Earthquakes: shaking or trembling of the earth caused by movement along a fault.. Uplift: upward movement of Earth’s crust.. ANNALS OF GEOPHYSICSVOL 47N 2/3April/June 2004regime consisting of central and local govern-ments canton and county Meanwhile there wasa reform and a standardization of the writing sys-tem From t Structure of the Earth. What are the different layers of the Earth?. Structure of the Earth. Inner core. 6000. °C. Solid metal. Structure of the Earth. Outer core. 4500-6000. °C. Liquid metal. Structure of the Earth.