Objective

You will use the theory of plate tectonics in order to explain the changes in the earth’s surface as a result of earthquakes

Warm-up

Along what types of boundaries do earthquakes generally occur?

DAY 36

Earthquakes 101EARTHQUAKES

Using your geology dictionary and text book define the key terms on the first pages of your note sheet.

Make sure you provide you own example or connection/ way to remember what it is.

You will have 12-15 minutes to complete this!

EARTHQUAKES

The amount of force or stress rocks will withstand before they break and an earthquake occurs.

ELASTIC LIMIT

Normal Fault: Type of stress: Tension

Boundary: Divergent

Description: Rock above moves downward in relation to the rock below

EARTHQUAKES:TYPES OF FAULTS

Thrust(reverse) Fault: Type of stress: Compression

Boundary: Convergent

Description: Rock above moves upward in relation to the rock below

EARTHQUAKES:TYPES OF FAULTS

Strike-Slip Fault: Type of stress: ShearingBoundary: TransformDescription: Rock slides next to each other: transform

EARTHQUAKES:TYPES OF FAULTS

Seismic waves- waves or vibrations produced by an earthquake

Seismologist- Scientist who studies Earthqaukes

Seismograph- instrument used to determine Magnitude of the Earthquake

EARTHQUAKES:SEISMIC WAVES

Primary(P) Waves

Speed: Fastest Wavelength:

Shortest Travels through: Any

material (solids and liquids)

Motion: direct line

EARTHQUAKES:SEISMIC WAVES

Secondary(S) Waves

Speed: ½ as fast as a P wave

Wavelength: longer than P waves

Travels through: only solids (mantle)

Motion: Moves forward in an UP & Down motion (inch worm)

EARTHQUAKES:SEISMIC WAVES

Love(L) Waves

Speed: slowest waveWavelength: longest

and most destructive

Travels through: along the surface

Motion: circular motion (drop of water in a puddle)

EARTHQUAKES:SEISMIC WAVES

EARTHQUAKES:SEISMOGRAM

Used to determine distance and epicenter of the earthquake

Magnitude: strength of an earthquake

Richter Scale: open-ended scale used to rate an earthquakes magnitude.

Each magnitude releases 32 times more ENERGY!

MEASURING EARTHQUAKES:

EARTHQUAKES

Fun Fact: Some earthquakes release so much energy that they knock the earth off of its axis by an extremely small amount. Ex: Chili Quake in 2010

When they happen

Without warningIn areas where they

have occurred before

Along plate boundaries

GET THE FACTS: EARTHQUAKES

How people die:

The collaspe of buildings and falling debris

Gas leaksFires

Fire caused by an Earthquake

GET THE FACTS: EARTHQUAKES

Huge tidal wave created by an earthquake under the ocean floor

TSUNAMI

Explain how earthquakes are responsible for changes in the earth’s surface?

CLOSURE

Objective

You will use the theory of plate tectonics and the changes in the earth’s surface as a result of earthquakes in order to determine the epicenter of an earthquake.

Warm-up

What can you tell me about the energy released during an earthquake?

FEBRUARY 6TH

Explain how seismographs are used to locate the epicenter of an earthquake?

CLOSURE

FEBRUARY 11TH

Objective

• You will use the theory of plate tectonics in order to explain the changes in the earth’s surface as a result of earthquakes and volcanoes.

Warm-up

• Describe the sequence and travel patterns of seismic waves after an earthquake.

GALLERY WALK

• You will have 20(~1 min per cover) minutes to walk around and view each of your peers Magazine cover. • On your sheet you will need to record the

following:• Who it belongs to• What you liked or what they did well• What you would change (constructive feedback)

REVIEW GAME

• Using the active votes type in the correct vocab word to answer the question.

CLOSURE

• Explain the differences in the changes made to the earth’s surface by volcanoes and earthquakes.

• Quest Next class: Earthquakes and Volcanoes

FEB 13TH

Objective

• You will use knowledge of plate tectonic and the changes made to the earth as a result of quakes and Volcanoes in order to complete Earthquake and Volcano assessment.

Warm-Up

• Write a question you have about volcanoes and/or earthquakes.

• Get out Volcano and Earthquake Notes

BINDERS & A PENCIL

CLOSURE

• We have ended geology and will be moving into earth’s history next class. Explain what you think is meant by earth history.