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Earthquake Vocabulary Part 2

Earthquake Vocabulary Part 2. Crust The outside layer of the earth; the coolest and least dense layer of the earth. Mantle The middle layer of the earth between the crust and the core. It makes up about 83% of the earth’s interior.

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Earthquake Vocabulary Part 2

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  1. Earthquake Vocabulary Part 2

  2. Crust The outside layer of the earth; the coolest and least dense layer of the earth.

  3. Mantle The middle layer of the earth between the crust and the core. It makes up about 83% of the earth’s interior.

  4. Asthenosphere The layer of the mantle that lies directly below the lithosphere (crust) and flows, like taffy.

  5. Core The earth’s innermost layers, consisting of a liquid iron outer core and a solid iron-nickel inner core.

  6. Atmosphere The layer of gasses which surrounds the earth’s surface and contains the clouds.

  7. HydrosphereThe part of the earth’s surface covered by water.

  8. Lithosphere The cool, solid outer shell of the earth. It consists of the crust and the rigid uppermost part of the mantle and is broken up into segments, or plates

  9. Ring of Fire A zone of intense earthquake and volcanic activity that encircles the Pacific Ocean basin; also called the Circum –Pacific Belt.

  10. Magnitude A measure of the total amount of energy released at the source of the earthquake.

  11. Intensity A measure of the damage done by an earthquake. Determined on the basis of the earthquake’s effect on people, structures, and the natural environment.

  12. Mid-Atlantic Ridge A zone of intense earthquake and volcanic activity that runs down the middle of the Atlantic Ocean.

  13. Mid-ocean ridge A mountain-like landform that develops when plates separate and new ocean lithosphere forms.

  14. Plate boundaryA place where pieces of the broken lithosphere meet.

  15. 3 types of plate boundaries Spreading Colliding Sliding

  16. P-wave A primary (compressional) earthquake wave that travels through the body of the earth; so named because it is the first wave to reach a seismograph station during an earthquake.

  17. S-wave A secondary earthquake wave; so named because it travels slower than a primary wave and is the second wave to reach the seismograph station after an earthquake.

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