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Earthquake Test

TermDefinition
p-waves (body waves) a seismic wave that compresses and expands rock, fastest wave. Can travel through any material- solid rock, magma, ocean water, and even air.
s-waves (body waves) a seismic wave that causes rock to move in a side-to-side direction. Can only travel through- solid materials
surface waves these seismic waves travel more slowly, but are more destructive. Can travel along on the earth's surface
seismic waves a wave of energy that travels through the Earth, away from an earthquake in all directions
seismology the study of earthquakes
seismologist someone who studies earthquakes
seismogram an instrument that records seismic waves
seismograph the print out of earthquake activity; shows the p, s, and surface waves Example: Richter Scale
focus a point inside the Earth where the earthquake begins
epicenter the point on the Earth's surface directly above an earthquake's starting point or focus
fault a break in the body of a rock which one block slides relative to another (lithosphere)
elastic rebound the sudden return of elastically deformed rock to its undeformed shape
deformation the bending, tilting, and breaking of the Earth's crust; the change in shape of a rock in response to stress
richter scale Measures earthquake intensity on a scale from 1-10
mercalli intensity scale Measures earthquake intensity and the amount of damage caused by an earthquake (Roman numeral)
aftershock minor shock(s) following the main shock of an earthquake
tsunami a large wave that results from large-scale seafloor displacements associated with large earthquakes, major submarine slides, or exploding volcanic islands
lithosphere rigid outer part of the earth, crust and outer mantle
earthquake is the shaking of Earth's crust caused by a release of energy
causes of earthquakes -impact of meteor -collapse of cavern -eruption of volcanoes -strain along faults
depth of earthquakes -shallow focus (70 kilometers) -immediate focus (70-300 km of earth' surface) -deep focus (700 kilometers beneath the surface)
fore-shocks Vibrations caused by the growing stress on bedrock which are detected before the earthquakes occurs
snow slide avalanche
the process of plunging lithosphere subduction
this agent of erosion has the greatest impact water
this rock forms when magma cools and hardens igneous rock
this plate consists of the crust and the upper mantle tectonic plates
forms when an oceanic plate sub ducts beneath a continental plate trench
the primary factor that influences the rate of weathering of rocks surface
first step in forming a sedimentary rock weathering
this fault in California is know for earthquakes San Andreas Fault
this valley is found between two ocean ridges rift
made of minerals bounded together rocks
What are the two types of surface waves? Love (L) waves Rayleigh (R) waves
Where do earthquakes occur? Epicenter and Fault
What boundary is it if the plates are already separated and going opposite directions of each other? Divergent boundaries
What boundary is it if they are sliding over one another? Convergent boundaries
What boundary is it if the plates are past each other? Transform
Determined by particle size texture
This soil layer is found in the A horizon top (topsoil)
Example of continent-continent collision Himalayas
What movement can predict volcanoes? animal and bird
supercontinent Pangaea
This type of logging increases soil erosion clear cut
Created by: Achenry45
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