Chapter 6

Question 1

What is the way people get mostly injured in earthquakes?

Answer 1

By big building collapsing

Question 2

Tsunami

Answer 2

A major earthquake with in an epicenter on the ocean floor sometimes causes major ocean waves.

Question 3

Richter scale

Answer 3

This scale is used to express the magnitude of an earthquake

Question 4

Microquakes

Answer 4

Earthquakes with magnitude with less then 2.5

Question 5

Mercalli scale

Answer 5

Expresses the intensity of an earthquake , by roman numerals I to XII

Question 6

Seismic gaps

Answer 6

A place were fault is locked and unable to move

Question 7

Volcanism

Answer 7

Any activity that includes the movement of magma towards the center of the earth

Question 8

Lava

Answer 8

Magma that erupts on the earths surface

Question 9

Volcano

Answer 9

The vent in the volcanic material the builds up on earths surface around the vent

Question 10

Hotspot

Answer 10

The areas of volcanism within plates

Question 11

Fissures

Answer 11

Cracks through witch lava flows

Question 12

Mafic lava

Answer 12

Usually oceanic crust origin

Question 13

Felsic lava

Answer 13

This is a lava that contains much silica and lesser amount of iron and magnesium

Question 14

Pahoehoe

Answer 14

Mathic lave that hardens with the the wrinkled surface with this type of silitifed lava

Question 15

Aa

Answer 15

The lava depost described is a sharp blocky shapes in to which the harden lava breaks

Question 16

Pillow lava

Answer 16

Pillow lave is commonly found in mid ocean ridges

Question 17

Tephra

Answer 17

Rock segments ejected at a volcano