Geology: Earthquakes

Question 0

P Wave

Answer 0

Primary; seismic wave that causes particles of rock to move back and forth

Question 1

Seismic Waves

Answer 1

A wave of energy that travels through the Earth and away from an earthquake in all directions

Question 2

S Wave

Answer 2

Secondary; Seismic wave that causes particles of rock to move side to side

Question 3

L Wave

Answer 3

Surface wave; moves the ground in an up and down motion

Question 4

Seismogram

Answer 4

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

Question 5

Seismograph

Answer 5

Tracing of an earthquake motion that’s created by a seismograph

Question 6

Fault

Answer 6

Break in a body of rock along which one block slides relative to another

Question 7

Epicenter

Answer 7

Point on the Earth’s surface directly above an earthquakes starting point, or focus

Question 8

Focus

Answer 8

Point along a fault at which the 1st motion of an earthquake occurs

Question 9

Richter Magnitude Scale

Answer 9

Measures the strength of earthquakes

Question 10

Modified Mercalli Intensity Scale

Answer 10

Measures earthquakes intensity