earthquake Flashcards

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1
Q

ring of fire

A

the rim as became as know as the ring of fire

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2
Q

strike-slip faults

A

opposing forces cause rock to break and move horizontally

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3
Q

normal fault

A

when rocks are pulled apart because of tension normal faults often form

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4
Q

reverse fault

A

when rocks are pushed together by compression reverse faults often form

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5
Q

p waves

A

a seismic wave that causes particles of rock to move in a back and forth direction

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6
Q

s waves

A

a seismic wave that causes particles of rock to move in a side to side direction

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7
Q

epicenter

A

the point on earths surface directly above an earthquakes starting point or focus

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8
Q

focus

A

the point along a fault at which the first motion of an earthquake occurs

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9
Q

Richter magnitude scale

A

measuring ground motion

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10
Q

explosive volcano

A

rare indelibly destructive

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11
Q

nonexplosive

A

most common type of eruption produce relatively calm flows of lava

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12
Q

Krakatoa

A

Is a caldera in the sunda strait between Islands of Java and Sumatra in t5he Indonesian province of Lampung.

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13
Q

Yellowstone supervolcano

A

is a volcanic candela

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14
Q

san andrenas fault

A

is a continental transform fault that extends roughly 1,200 km though ca.

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15
Q

mid-oceanic ridge

A

is a sea floor mountain system formed by plate tectonics

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16
Q

shield volcano

A

low profile, it resembles a warriors shield lying on the ground

17
Q

cinder cone volcano

A

simplest type of volcano built from darticles an blobs of ungeared lower eject from a single vent