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chapter 8 & 10 vocab

TermDefinition
earthquake where rock begins to bend and then snap and reform shape
focus where the earthquake actually happened deep into the earth
seismic waves elastic wave made by some kind of impulse as a earthquake
epicenter the point on Earth surface that's right above the focus
elastic rebound the rocks bend until they cant no more then they snap and reform there original shape
body waves the types of earths earthquakes
p waves push pull body waves
s waves side to side waves
surface waves surface waves are larger on land and do most damage
seismograph an instrument used to record the details of earthquakes and show how high intensity they were
seismogram a record made by a seismograph
Richter Scale to record the range of earthquakes
Moment Magnitude Scale is used by seismologists to record the size of a earthquake
modified mercalli scale the scale is a scale that has a numerical levels of how people reacted to the earthquakes
liquefaction where soil loses its strength and ability to hold buildings
tsunami where a earthquakes happens in the water and the energy carries the water and creates a tsunami
seismic gap segment of an active fault
crust the earths surface
mantle the liquid lave in the core
outer core is a liquid manly made of iron and nickel
inner core it is the very center of the earth and it is a solid ball
moho short Mohorovicic discontinuous
Ring of fire a major area in the Pacific ocean and has lots of earthquakes and volcano
hot spot where the temperature is to hot and unsafe to be around
viscosity the state of being thick, sticky, and semi-fluid in consistency, due to internal friction.
vent an opening that allows air, gas, or liquid to pass out of or into a confined space.
pyroclastic material cloud of ash, lava fragments carried through the air, and vapor
volcano a mountain or hill, typically conical, having a crater or vent through which lava, to erupt from it
crater a large, bowl-shaped cavity in the ground or on the surface of a planet or the moon, typically one caused by an explosion
shield volcano a broad, domed volcano with gently sloping sides, characteristic of the eruption of fluid, basaltic lava.
cinder cone a cone formed around a volcanic vent by fragments of lava thrown out during eruptions.
composite volcano a conical volcano built up by many layers (strata) of hardened lava,
caldera a large volcanic crater, typically one formed by a major eruption leading to the collapse of the mouth of the volcano.
lahar destructive mudflow on the slopes of a volcano.
pluton a body of intrusive igneous rock.
sill a tabular sheet of igneous rock intruded between and parallel with the existing strata.
laccolith a mass of igneous rock, typically lens-shaped, that has been intruded between rock strata causing uplift
dike a long wall or embankment built to prevent flooding from the sea.
batholith a very large igneous intrusion extending deep in the earth's crust.
Created by: 2010900