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Understanding Earthquakes: Causes, Impacts, and Measurement

Earthquakes occur when built-up pressure from moving plates is released, causing the rock to break and energy to be released in waves. Understanding the focus of earthquakes is crucial, as closer proximity means stronger waves that can damage structures and even trigger tsunamis. The Richter Scale and seismograph are used to measure and compare earthquake strengths, with each increasing number representing a tenfold increase in power. Learn more about this natural phenomenon and its impact on our world.

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Understanding Earthquakes: Causes, Impacts, and Measurement

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  1. Earthquakes

  2. Earthquakes Focus • Occur when built up pressure from moving plates is released • Point where the rock first breaks, or moves, causing the earthquake • Energy is released in waves • The closer to the focus you are, the stronger the waves will be • Waves can damage structures • Can cause Tsunami (large wave of water that destroys coastal areas- can be 30 meters {98.4 feet} high)

  3. Richter Scale Seismograph • Used to compare the strengths of earthquakes • Scale of 1 to 10 • Each increasing number is 10 times stronger than the preceding number • Damage is caused in 5+ earthquakes • The Richter Scale number will be higher the closer to the focus the measurement is taken • Instrument for measuring the strength of earthquake • Based on energy released

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