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Earthquakes, Volcanoes, and Plate Tectonics

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Page 1: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Earthquakes, Volcanoes, and Plate Tectonics

Page 2: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Earthquakes, Volcanoes, and Plate Tectonics

• Earth’s plates move around, collide, move apart, or slide past each other.

• The movement of these plates can cause vibrations known as earthquakes, and can create conditions that cause volcanoes.

Page 3: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Earthquakes, Volcanoes, and Plate Tectonics

Question: Is there a correlation between plate tectonics and volcano formation?

Page 4: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Earthquakes, Volcanoes, and Plate Tectonics

Page 5: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Divergent Plate Boundaries

• Tectonic plates move apart.–As plates separate, long cracks called rifts form between them.

–Rifts contain fractures that allow magma to flow to the surface.

Page 6: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Divergent Plate Boundaries

• Rift zones account for the most lava flow onto Earth’s surface.

Page 7: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Divergent Plate Boundaries

• Fissure eruptions often occur along rift zones. Divergent Boundary demo

Page 8: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Convergent Plate Boundaries

• Volcanoes often form along convergent plate boundaries.

• Two plates move toward each other. If the plates are of equal density, they push up against each other, forming a mountain chain. If they are of unequal density, one plate sinks beneath the other in a subduction zone. Convergent Boundary demo.

• Divergent, Convergent, Transform Boundaries video 6:08

Page 9: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Convergent Plate Boundaries

Page 10: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Hot Spots• Hot Spots: Large bodies of

magma are forced upward through Earth’s mantle and crust.

• Hot Spots video 3:00

Page 11: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Earthquakes, Volcanoes, and Plate Tectonics

• Review: Name the three methods that volcanoes can form.

1. Along rift lines.

2. Subduction zones

3. Hot spots

Page 12: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Moving Plates Cause Earthquakes

• Earthquakes often occur where tectonic plates come together.

Page 13: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Moving Plates Cause Earthquakes

• Question: Why do earthquakes occur in the shown locations?

Page 14: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Moving Plates Cause Earthquakes

• Earthquake locations have a close relationship with tectonic plate boundaries.

• Movement of these plates produces the forces that generate the energy to cause earthquakes.

Page 15: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Moving Plates Cause Earthquakes

• 80% of all earthquakes occur in the Pacific Ring of Fire.

Page 16: Earthquakes, Volcanoes, and Plate Tectonics. Earth’s plates move around, collide, move apart, or slide past each other. The movement of these plates can

Moving Plates Cause Earthquakes

• Researchers learn much about Earth’s interior and plate tectonics by studying seismic waves.

• The way seismic waves pass through a material is determined by its properties.

• How Do Scientists Know What’s Inside the Earth? 1:22. Brain Pop; Plate Tectonics


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 · Web viewConsists of a series of plates, called lithospheric plates, which ride and move on the partially molten asthenosphere. The lithospheric plates move relative to each other

The Earth’s Layers · 2016-01-29 · The Crust •The crust is broken into large pieces that move slowly. –These are called plates. –These plates move because of temperature

Slip, Slide and Collide How Do Tectonic Plates Move?

Plates Move Apart. What happens when plates move apart? Think About…

When the plates collide (or convergent plate boundaries)

Learn about Alfred Wegner Discover the supercontinent ... · PDF file& Evidence that supports it ... ... The plates collide and form

When Plates Collide - oceanexplorer.noaa.gov · 4 Image captions/credits on Page 2. INSPIRE: Chile Margin 2010: When Plates Collide Grades 5-6 (Physical Science) Where tectonic plates

Divergent boundaries = plates diverge (move apart) convergent boundaries = plates converge (come together) transform boundaries = plates slide past each

Ch.5.less.2.what happens when earth plates move

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Earth’s Evolution. The Lithosphere The Lithosphere is divided into several large plates. Convection currents in the asthenosphere move the plates

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Plates on the Move Three kinds of boundaries between plates “Divergent” – pulling part “Convergent – pushed together “Transform fault” – slide

7.1 STRESS IN EARTH’S CRUST The Way Tectonic Plates Move

Theory of Plate Tectonics: Lithosphere is broken up into many plates that move Lithosphere is broken up into many plates that move Interactions when the

3.3 Plates Move Apart Learn about: Different plate boundaries Different plate boundaries What happens when plates move apart. What happens when plates

Fold Mountains Mountains formed when two Plates Collide

Existence of Gas pressure based on the kinetic theory gas molecules move freely and randomly. The gas molecules collide with one another and also collide

Reducing Risk Where Tectonic Plates CollideReducing Risk Where Tectonic Plates Collide Most of the world’s earthquakes, tsunamis, landslides, and volcanic eruptions are caused by

Elastic and Inelastic Collisions 6.3. Perfectly Inelastic Collisions When two objects collide and move with each other after

KEY CONCEPT Plates converge or scrape past each other.plates move apart. At convergent boundaries, where plates push together, crust is either folded or destroyed. When two plates

Plate Boundaries Divergent Boundaries Occur at mid-ocean ridges Plates move apart (diverge) also called Constructive Boundaries Convergent Boundaries Plates

PLATE BOUNDARIES. THE PLATES OF THE EARTH The Earth’s crust is made up of plates. The plates move in specific directions. The three directions that the

Hotpots. An ocean trench is formed when two converging plates collide

Worlds Collide What happens when two worlds collide?

We know the Earth is broken into 8 major lithospheric plates …. We know these plates move …. We know there are boundaries between the plates …. Now, let’s

Earth’s Interior and Plate Tectonics...2012/01/17  · Plate Tectonics • These plates fit together like puzzle pieces and move in relation to each other • these plates move away,

The Earth is made up of several plates There are about a dozen major plates and many minor plates These tectonic plates move at different rates that vary

Why do tectonic plates move?

The Earth’s Surface: Shaping the crust hint: You need to know what happens when plates collide, separate or slide past each other. Volcanic activity • Occurs where plates separate

Sound familiar? Look inside for an all NEW that uses …...sideways past each other. Some plates move toward each other. Some plates move away from each other. Places where plates

Earth Processes and Rock Layers. Mountain Building Mountain building occurs when 2 continental plates of equal densities collide. – The plates crush together,

CH. 17 Russia’s Varied Landscape: Physical Processes at Work · Over millions of years, the slow movement of tectonic plates has created mountains. When plates collide, they push