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platesandquakes

plate tectonics and earthquake vocab

TermDefinition
STRESS POWERFUL FORCES THAT SQEEZE OR PULL ON THE CRUST
FAULT A BREAK IN THE CRUSTWHERE SLABS OF CRUST SLIP PAST EACH OTHER
PLATES PIECES THAT THE LITHOSPHERE IS BROKEN INTO FLOAT
FOCUS POINT BENEATH THE SURFACE OF EARTH WHERE AN EARTHQUAKE STARTS
PLATE BOUNDARIES CRACKS BETWEEN THE PLATES OF THE LITHOSPHERE
PANGAEA SUPERCONTINENT THAT EXISTED MILLIONS OF YEARS AGO ON EARTH
P WAVES WAVES THAT COMPRESS AND EXPAND IN THE DIRECTION OF THE WAVE
S WAVES WAVES THAT VIBRATE SIDE TO SIDE ALONG THE WAVE
SURFACE WAVES WHEN WAVES REACH THE EARTH'S SURFACE
RICHTER SCALE RATING OF THE SIZE OF AN EARTHQUAKE GIVEN IN A NUMBER FORM
PLATE TECTONICS THEORY THAT THE CONTINENTS ARE ADRIFT ON THE MANTLE
EARTHQUAKE SHAKING OF THE EARTH CAUSED BY PRESSURE BELOW
TENSION STRESS THAT PULLS APART THE CRUST
SHEARING STRESS THAT PUSH ROCK MASSES BACK AND FORTH.
COMPRESSION STRESS THAT PUSHES 2 PLATES TOGETHER
SEISMOGRAPH INSTRUMENT USED TO MEASURE THE GROUND MOVEMENT DURING EARTHQUAKES
MAGNITUDE THE STRENGTH OF AN EARTHQUAKE
EPICENTER POINT ON EARTH'S SURFACE DIRECTLY ABOVE THE FOCUS. STRONGEST PART OF AN EARTHQUAKE
PACIFIC PLATE THAT INCLUDES PACIFIC OCEAN AND PART OF CALIFORNIA
NORTH AMERICAN PLATE THAT CONTAINS U.S.A., MEXICO , AND CANADA, AND PART OF ATLANTIC OCEAN
SOUTH AMERICAN PLATE THAT INCLUDE SOUTH AND CENTRAL AMERICA AND PART OF ATLANTIC OCEAN
AFRICAN PLATE WITH AFRICA AND PART OF THE ATLANTIC AND INDIAN OCEAN
EURASIAN PLATE THAT CONTAINS EUROPE AND ASIA
INDOAUSTRALIAN PLATE THAT INCLUDES INDIAN OCEAN AND AUSTRALIA
ANTARCTIC PLATE THAT INCLUDES MOST OF THE SOUTH POLE
DIVERGENT PLATE BOUNDARY WHEN 2 PLATES PULL APART
CONVERGENT PLATE BOUNDARY WHEN 2 PLATES COLLIDE TOGETHER
TRANSVERSE PLATE BOUNDARY WHEN 2 PLATES SLIDE BY EACH OTHER.
DORMANT SLEEPING VOLCANO THAT MIGHT ERUPT AGAIN
EXTINCT DEAD VOLCANO THAT PROBABLY WILL NOT ERUPT AGAIN
ACTIVE A LIVE VOLCANO THAT IS ERUPTING OR SHOWS SIGNS OF ERUPTING.
SUBDUCTION CONVERGENT BOUNDARY WHEN ON PLATE GOES UNDER OTHER PLATE
SEA FLOOR SPREADING TYPE OF DIVERGENT BOUNDARY UNDER THE OCEAN
MOUNTAIN RANGE FORMED BY 2 COLLIDING CONVERGENT PLATES
Created by: husker2000