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Earthquake & Volanoe

Vocabulary and their definitions

QuestionAnswer
Point on Earth's surface directly above on earthquake's focus. Epicenter
Fracture that occurs when rocks break and that results in relative movement of opposing sides can form as a result of compression being pulled appart or shear. Fault
Point deep inside Earth where energy is released causing an earthquake. Focus
Molten rock flowing onto Earth's surface. Lava
Rigid layer on earth about 100km thick made of the crust and a part of the upper mantle. Lithosphere
A measure of the energy released by an earthquake. Magnitude
Long crack fissure of through that forms between tectonic plates moving apart at plate boundaries. Rifts
Describes the ability of structures to stand up against the vibrations caused by an earthquake. Seismic Safe
Earthquake waves including primary waves secondary waves and surface waves. Seismic Waves
Earthquake waves including primary waves secondary waves and surface waves. Surface Waves
Instrument used to record seismic waves. Seismograph
Powerful seismic sea wave that begins over an oceanic floor earthquake can reach 30m height when approaching land and can cause destruction in coastal areas. Tsunami
Cone shaped hill or mountain formed when hot magma solids and gas erupt onto Earth's surface through a vent. Volcanoes
Massive avalanches of hot glowing rock flowing on a cushion of intensely hot gases. Pyroclastic Flow
Magnitude is based on measurements of amplitudes or heights of heights of seismic waves as recorded on seismographs. Richer Scale
Created by: mario712
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