Hosted by Mrs. Dempsey 100 200 400 300 400 Forces in Crust Earthquake Waves MonitoringSafety 300 200 400 200 100 500 100.

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Presentation transcript:

Hosted by Mrs. Dempsey

Forces in Crust Earthquake Waves MonitoringSafety

Row 1, Col 1 What are the three types of stress that affects rock? Tension, Compression, Shearing

1,2 Name the three types of waves in order from fastest to slowest P,S, Surface

1,3 Name 5 instruments that can monitor motion along faults Tiltmeter, creepmeter, satellite, laser

1,4 What three words should you remember when a quake occurs Drop, Cover, Hold

2,1 What are the three types of faults that stress can cause? Reverse, Normal, Strike/Slip

2,2 Where exactly does an earthquake occur? Focus

2,3 Which 2 instruments measure horizontal movement Creepmeter, laser-ranging device

2,4 Name 3 things you can do to better secure your home to prepare for a quake Secure chimney, cabinets, foundation move bed away from window

3,1 An upward fold in a rock is called … anticline

3,2 Which type of wave can travel through the outer core of the Earth? Why? P wave-can travel through liquids

3,3 Name two things that a seismograph can record? Seismic waves arrival times /Speed of waves

3,4 Describe what Base-Isolation is and how it works Reduces amount of shaking w/ springs or pads attached to foundation to allow structure to move

4,1 The Himalayas contain many of these kind of faults. Reverse

4,2 Name three things that are only true about surface waves Slowest, largest on seismogram, only travel on surface

4,3 How does a seismograph help us locate the distance to an epicenter. Be specific What information is needed? Arrival times of p and s waves = distance=radius=epicenter(3)

4,4 What happens to wave-length and height of a tsunami when it approaches a land Height increases/wavelength decreases

5,1 What two types of faults move Vertically? Both faults/Normal=tension/Reverse=compression

5,2 Name the three scales that we use to rate earthquake? Which one measures the total energy released during a quake? Magnitude? Intensity? Mercali, Richter, Moment Mag./Moment Mag.

5,3 How far does a P wave travel in 7 minutes? How far does an S waves ravel in 7 minutes? P-4000km / S-1900km

5,4 What type of fault could cause a tsunami to form? Explain Reverse-the ocean floor is thrusted upward moving the water on the ocean floor upward with it