Ch. 5 Ls/ 1&2 Flashcards

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1
Q

Shield volcano

A

Lava flows freely and spreads out widely

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2
Q

Composite volcano

A

Shoot out lava in rock fragments in forms a towering

mountain

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3
Q

Cinder cone volcano

A

Breaks into pieces cools and forms cinders around the vent

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4
Q

Earthquake

A

The rolling, shaking, moving or shocking of the earths surface

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5
Q

Hypocenter

A

Location on the fault where the movement first occurs

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6
Q

Seismic waves

A

The source of an earthquake create seismic waves that travel outward.
Tectonic plates Are constantly moving and the strain along that fault becomes too much. The energy is rapidly released in the form of vibrations called seismic waves.

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7
Q

Normal fault

A

When rocks pulls apart one side slips downward

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8
Q

Reverse fault

A

The rocks push together, one side shifts up over the other, creating a reverse fault.

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9
Q

Strike slip fault

A

When rocks slide past each other in opposite directions, a lateral or transform fault is created.

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10
Q

Seismograph

A

A tool that graphs seismic waves. Is used to measure the direction, speed, and magnitude of earthquakes.

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11
Q

Magna

A

When the heat inside the earth causes the rocks to melt,
a thick liquid called magna forms.

Magna rises to the surface and pushes through weak spots.

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12
Q

Ring of fire

A

The edges around the plates of the Pacific ocean are subject to the most movement, and the most volcanoes and earthquakes

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13
Q

Tectonic plates

A

The Earth’s crust consists of rocky plates that fit together like puzzle pieces. They are constantly moving

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14
Q

Mount Vesovius

A

Volcano. Naples, Italy A.D. 79. Destroyed Pompeii

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15
Q

Mount Saint Helens

A

Volcano. 1800 & 1980 Washington US

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16
Q

Mount Fuji

A

Volcano. 1707

17
Q

Mount Etma

A

Volcano. Sicily, Italy. Longest history of eruptions

18
Q

China 1556 earthquake

A

830,000 people were killed

19
Q

San Francisco earthquake 1906

A

Fire raged for three days after the earthquake

20
Q

Alaska in 1964 earthquake

A

Measured 8.4 on the Richter scale

21
Q

Sumatra earthquake 2004

A

December 26th 175,000 died from a tsunami wave

22
Q

Plates

A

The large sections that make up earths crust and upper mantle

23
Q

Folds

A

When plate slowly ran into each other, they can form bended rock layers called folds

24
Q

Fault

A

A long narrow crack in the Earth’s crust

25
Q

Mountains

A

Tall landforms caused by folding or faulting

26
Q

Earthquake

A

If the rock in the earths crust suddenly shakes an earthquake occurs

27
Q

Tsunami

A

Underwater earthquakes that cause huge ocean waves

28
Q

The travel of seismic waves

A

Seismic waves travel at different speeds along earth’s surface and through earths interior

29
Q

Volcano

A

A mountain that forms around an opening in earths crust

30
Q

Hot spots

A

Volcanoes that form over thin places in earth’s crust

31
Q

Hawaiian Islands

A

An example of volcanoes that formed over a hotspot in the Pacific ocean

32
Q

How is a volcano produced?

A

A volcano is produced by melted rock called magma, which erupts onto the surface as lava.