DRA QUIZ

Question 1

the point on Earths surface directly above an earthquakes starting point

Answer 1

epicenter

Question 2

instrument that records vibrations in the ground and determines the location and strength of an earthquake

Answer 2

seismograph

Question 3

tracing of earthquake motion that is detected by a seismograph

Answer 3

seismogram

Question 4

the point in Earths interior where an earthquakes begins

Answer 4

focus

Question 5

simplest method seismologists use to find an earthquakes epicenter

Answer 5

S-P time method

Question 6

first step in finding an earthquakes epicenter is to collect several __________ from different seismographic stations

Answer 6

seismograms

Question 7

by using a time-distance graph, a seismologists can find the distance from each station to the earthquakes

Answer 7

epicenter

Question 8

find location of the epicenter by knowing the distance from the epicenter to three stations

Answer 8

putting a circle around the three stations and where they intersect is the epicenter

Question 9

seismograms are used to find out an earthquakes

Answer 9

strength

Question 10

what is the Richter magnitude scale used to measure

Answer 10

the strength of an earthquake

Question 11

what is a measure of the strength of an earthquake called

Answer 11

magnitude

Question 12

how many times stronger is an earthquake with a magnitude of 5.0 than an earthquake with a magnitude of 4.0

Answer 12

10

Question 13

the degree to which people feel an earthquake and the amount of damage it causes is called

Answer 13

intensity

Question 14

highest intensity level on the Modified Mercalli Intensity Scale

Answer 14

XII

Question 15

lowest level Modified Mercalli Intensity describes and earthquake

Answer 15

not felt by most people

Question 16

how is the Richter scale used to find the strength of an earthquake

Answer 16

measuring the ground motion

Question 17

where are intensity values of an earthquake usually highest

Answer 17

near an earthquakes epicenter