Earthquakes (unit 4)

Question 1

vibrations in the ground that result from movement along faults or breaks in the earhs lithosphere

Answer 1

Earhtquake

Question 2

What are three types of faults

Answer 2

Normal fault
strike-slip fault
reserve fault

Question 3

Form when forces pull rocks apart along divergent plate boundary; block of rock above fault moves down

Answer 3

Normal fault

Question 4

Two blocks of rock slide horizontally past each other in opposite direction. (Transform plate boundaries, transform fault)

Answer 4

Strike-slip fault

Question 5

Force pushes two blocks of rock together with the rock above the fault moving up (Convergent plate boundary)

Answer 5

Reserve fault

Question 6

point beneath earth’s surface where rock under stress breaks to cause an earthquake

Answer 6

Focus

Question 7

Point on the surface directly above the surface, above the focus

Answer 7

Epicenter

Question 8

Waves that carry energy of an earthquake away from the focus

Answer 8

Seismic waves

Question 9

Compression waves that travel through solids and liquids compressing and expanding the material they pass through

Answer 9

Primary waves (P waves)

Question 10

only travel through solids and temporarily changes the shape, but not the volume of the material they pass through; move slower than P waves (S waves)

Answer 10

Secondary waves

Question 11

move slower than P and S waves, but can produce severe ground movement with a wavelike motion

Answer 11

Surface waves

Question 12

How do you find the Epicenter?

Answer 12

Scientist triangle data from 3 seismometers, which measure ground movement (motion)

Question 13

Locating an earthquakes epicenter is done using triangulating data from at least three different ______, or devices that that measure and record ground motion and helps determine the distance Seismic wave travel.

Answer 13

Seimometer