volcano and eq

Question 1

fault

Answer 1

i

Question 2

ring of fire

Answer 2

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Question 3

transform/ strike-slip

Answer 3

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Question 4

divergent / normal

Answer 4

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Question 5

convergent / reverse

Answer 5

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Question 6

P-waves

Answer 6

.

Question 7

S-waves

Answer 7

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Question 8

epicenter

Answer 8

.

Question 9

focus

Answer 9

.

Question 10

Richter scale

Answer 10

.

Question 11

explosive volcano

Answer 11

Volcanic eruptions can be explosive, sending ash, gas and magma high up into the atmosphere

Question 12

nonexplosive volcano

Answer 12

Because the composition of magma is different in different volcanoes, the properties of the lava are different. In effusive eruptions, lava flows are relatively calm and do not explode out of the volcano

Question 13

Krakatoa

Answer 13

Krakatoa, or Krakatau, is a volcanic island situated in the Sunda Strait between the islands of Java and Sumatra in the Indonesian province of Lampung

Question 14

Yellowstone supervolcano

Answer 14

A large volcano in Yellow Stone National Park

Question 15

San Andreas fault

Answer 15

a continental transform fault that extends roughly 1,200 kilometers through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip

Question 16

Mid-oceanic ridge

Answer 16

an underwater mountain system formed by plate tectonics. It consists of various mountains linked in chains, typically having a valley known as a rift running along its spine

Question 17

shield volcano

Answer 17

a type of volcano usually built almost entirely of fluid lava flows. They are named for their low profile, resembling a warrior’s shield lying on the ground

Question 18

cinder cone volcano

Answer 18

a steep conical hill of loose pyroclastic fragments, such as either volcanic clinkers, cinders, volcanic ash, or scoria that has been built around a volcanic vent

Question 19

composite volcano

Answer 19

a conical volcano built up by many layers of hardened lava, tephra, pumice, and volcanic ash

Question 20

hot spot

Answer 20

a portion of the Earth’s surface which experiences volcanism