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Created with Fabric.js 1.4.5 Loss of territories - productive land,industries and raw resources Earthquakes,They can change a life An earthquake is a geologicalevent inside the earth that generates strong vibrations. Some earthquakes occur when tectonic plates move past each other. Large sections of Earth's crust and upper mantle, move past each other. Earthquakes also occur if one plate another, An earthquake is measured by the Richter scale for magnitude. This shows how powerful an earthquake is.Another scalethe Modified Mercalli Scale uses observationsof damage or people's assessments of effects to state the intensity Destructio n Earth's crust ranges from 3 to 45 miles deep (5 to 70 kilometers), a thin shell. Some plates are jagged, not smooth.As they slide, piecesfrom one plate often snag on another. As the plates continue moving, they pull at the entangledsections until finally tearing them apart. -Earthquakes with a magnitude of 3 to 5 is considered minor, while a quake with a magnitude of 5 to 7 is moderate to strong. P-wavesThe fastest waves, these compress or stretch the rock in their path through Earth, moving at about 4 mi (6.4 km) per second.S-wavesAs they move through Earth, these waves shift the rock in their path up and down and side to side, moving at about 2 mi (3.2 km) per second.Rayleigh waves and Love wavesThese two types of "surface waves" are named after seismologists. Moving at less than 2 mi (3.2 km) per second, they lag behind P-waves and S-waves but cause the most damage. Rayleigh waves cause the ground surface in their path to ripple with little waves. Love waves move in a zigzag along the ground and can wrench buildings from side to side. Earthquake statistics
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