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earthquake and volca

QuestionAnswer
Epicenter: Point on Earth's surface directly above an earthquake'S focus.
Fault: Fracture that occurs when rocks break and that result in relative movement of opposing sides.
Focus: Point deep inside Earth where energy is released, causing an earthquake.
Lava: Rigid layer of Earth about 100km thinck,made of the crust and a part of the upper mantle.
Magnitude: A measure of the energy released by an earthquake.
Rifts: Long crack, fissure, or through that forms between tectonic plates moving apart at plate boundaries.
Seismic Safe: Describe the ability of structures to stand up agains the vibrations caused by an earthquake.
Seismic Waves: Earthquake waves, including primary secondary waves , and surface waves.
Surface Waves: A seismic wave that is trapped near the surface of the Earth.
Seismograph: Instrument used to record seismic waves.
Tsunami: powerful seismic sea wave that begins over an ocean floor earthquake, can reach 30m in Height when approaching land, and can cause destruction in coastal areas.
Volcano: Cone-Shape hill or mountain formed when hot magma, solids, and gas erupt onto Earth's surface through a vent.
Pyroclastic Flow: A pyroclastic flow as a pyroclastic density c is a common and devastating result of certain explosive volcanic eruptions.
Richter Scale: Richer scale, magnitude describe how much energy an earthquake releases.
Created by: bnegron712
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