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Question 1

ring of fire

Answer 1

a path along the Pacific Ocean characterized by active volcanoes

Question 2

Strike-slip fault

Answer 2

vertical (or nearly vertical) fractures where the blocks have mostly moved horizontally

Question 3

Normal fault

Answer 3

a type of dip-slip fault where the hanging wall moves downwards from the footwall.

Question 4

Reverse fault

Answer 4

the block above the fault moves up relative to the block below the fault.

Question 5

P-waves

Answer 5

one of the two main types of elastic body waves,

Question 6

S-waves

Answer 6

a transverse earthquake wave that travels through the interior of the earth

Question 7

epicenter

Answer 7

the central point of something, typically a difficult or unpleasant situation.

Question 8

focus

Answer 8

the center of interest or activity.

Question 9

Richter magnitude scale

Answer 9

is a measure of the strength of earthquakes, developed by Charles Francis Richter and presented in his landmark 1935 paper,

Question 10

explosive volcano

Answer 10

In volcanology, an explosive eruption is a volcanic eruption of the most violent type. A notable example is the 1980 eruption of Mount St. Helens.

Question 11

. nonexplosive volcano

Answer 11

generally occur when magma is thin and flows easily.

Question 12

Krakatoa

Answer 12

Krakatoa also transcribed Krakatau is a caldera in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung.

Question 13

Yellowstone supervolcano

Answer 13

Yellowstone Supervolcano, is a volcanic caldera and supervolcano in Yellowstone National Park

Question 14

San Andreas fault

Answer 14

The San Andreas Fault is a continental transform fault that extends roughly 1,200 kilometers (750 mi) through California.

Question 15

. Mid-oceanic ridge

Answer 15

The massive mid-ocean ridge system is a continuous range of underwater volcanoes that wraps around the globe like seams on a baseball, stretching nearly 65,000

Question 16

shield volcano

Answer 16

A shield volcano is a type of volcano named for its low profile, resembling a warrior’s shield lying on the ground. It is formed by the eruption of highly

Question 17

cinder cone volcano

Answer 17

a conical volcano with a low, steep profile, having been formed mostly by the cinders or scoria that fall from lava that has violently spewed into the air

Question 18

composite volcano

Answer 18

large volcanoes (many thousands of feet or meters tall) generally composed of lava flows, pyroclastic deposits, and mudflow

Question 19

hot spot

Answer 19

a small area or region with a relatively hot temperature in comparison to its surroundings.

Question 20

Mt. Vesuvius

Answer 20

Vesuvius has erupted many times since. It is the only volcano on Europe’s mainland to have erupted in the last hundred years. It is regarded as one of the most