earthquakes part 1

Question 1

whats an earthquake

Answer 1

a sudden shaking of the earths crust it is caused by two plates slipping past eachother

Question 2

whats a fault line

Answer 2

a long deep crack in the earths crust that seperates the plates

Question 3

whats a focus

Answer 3

the point where the earthquake begins underground

Question 4

whats an epicentre

Answer 4

point of the earths surface directly above the epicentre

Question 5

whats a seismograph

Answer 5

instrument uses to measure and record earthquakes

Question 6

whats the richer scale

Answer 6

registers the strength or magnitude of the earthquake

Question 7

whats a mercalli scale

Answer 7

based on eyewitness observations measures the damage caused by an earthquake

Question 8

whats a tsunami

Answer 8

a large wave that moves quickly towards the shore

Question 9

how do earthquakes occur

Answer 9

-when an earthquake occurs under the ocean the sudden vertical movement of plates displaces the sea water