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Measuring Earthquake Strength

Science · Volcanoes & Earthquakes · conceptual

Know that scientists measure earthquakes using seismometers, that earthquakes release energy that travels as waves through the ground, and that a magnitude scale describes their strength

What mastery looks like

  • Explain that a seismometer is an instrument that detects and records ground shaking
  • Describe earthquake energy as waves that travel outward from where rocks broke
  • Interpret a magnitude number as a measure of an earthquake's strength

Check your understanding

If Measuring Earthquake Strength heard a news report about a magnitude 6 earthquake, could they explain what a seismometer is, that earthquakes send waves through the ground, and that higher numbers mean stronger quakes?