Term
| True or False? An intensity XII (12) earthquake would cause very little destruction. |
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Definition
| False - this would be TOTAL destruction. 12 is as high as the scale goes!!! |
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Term
| Stress that pulls and stretches rock is called? |
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Definition
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Term
| Which scale is based on the amount of damage an earthquake does? |
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Definition
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Term
| The place inside Earth where an earthquake starts is the? |
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Definition
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Term
| What term refers to the FORCE that acts on rock to change its shape or volume? |
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Definition
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Term
| What mountain ranges were made by folding? |
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Definition
| Alps, Himalayas, Appalachian Mts. |
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Term
| Where is the risk of earthquakes the HIGHEST in the US? |
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Definition
| Along the Pacific coast (like California) |
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Term
| Which type of fault is caused by compression? |
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Definition
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Term
| Seismic waves that move rocks up and down like a wave in a rope are called? |
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Definition
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Term
| A creep meter measures how far the sides of a fault have? |
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Definition
| Moved in opposite directions |
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Term
| True or False? The PAPER record of a seismic event is called a seismoGRAM? |
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Definition
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Term
| True or False? If you are outdoors during an earthquake, you should move under a tree or building. |
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Definition
| False - you want to be out in an open field away from everything!!! |
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Term
| True or False? Geologists can predict accurately WHERE and WHEN an earthquake will strike. |
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Definition
| False - we NEVER know when plates will actually move |
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Term
| True or False? Stress ADDS energy to rocks. |
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Definition
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Term
| True or False? S waves are the fastest seismic waves. |
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Definition
| False - P waves are the fastest! |
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Term
| True or False? When seismic waves reach a fault, they bounce off of a fault. |
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Definition
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Term
| True or False? Seismic waves carry the energy of an earthquake AWAY from the focus in all directions. |
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Definition
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Term
| True or False? The closer an earhtquake, the greater the time between the arrivals of P waves and S waves. |
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Definition
| False - If you are close to it, the waves will be very close together. |
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Term
| True or False? Far from shore, a large ship might ride over a seismic sea wave without anyone noticing it. |
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Definition
| True - This is the SAFEST place to be when on a boat!! |
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Term
| Uses a network of Earth-orbiting satellites. |
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Definition
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Term
| Detects changes in distance to a reflector. |
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Definition
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Term
| Measures movement along a strike-slip fault. |
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Definition
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Term
| Works like a carpenter's level to detect ground changes. |
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Definition
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Term
| Records ground movements caused by seismic waves as they move through the Earth. |
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Definition
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Term
| Slowest seismic waves that produce the most severe ground movements. |
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Definition
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Term
| The point beneath Earth's surface at which rock under stress breaks and triggers and earthquake. |
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Definition
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Term
| A measurement of earthquake strength. |
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Definition
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Term
| The point on the surface directly above the point at which an earthquake occurs. |
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Definition
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Term
| A measurement of earthquake strength. |
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Definition
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Term
| The hanging wall slides up and over the footwall in what kind of fault? |
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Definition
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Term
| There is little or no up and down motion in what kind of a fault? |
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Definition
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Term
| The hanging wall slips downward below the footwall in what kind of fault? |
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Definition
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Term
| What wave causes buildings to contract and expand (like an accordian?) |
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Definition
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Term
| What wave shakes a building from side to side? |
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Definition
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Term
| What wave type shakes buildings VIOLENTLY in all ways? |
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Definition
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Term
| The stress that pushes rocks in opposite directions. |
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Definition
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Term
| The stress that causes folding is called? |
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Definition
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Term
| The point on the surface directly above the focus of an earthquake is? |
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Definition
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Term
| A fold in a rock that bends downward into a valley is? |
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Definition
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Term
| The process in which shaking turns soft soil into mud is? |
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Definition
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Term
| The point at which a rock under stress breaks and triggers an earthquake is called? |
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Definition
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Term
| The water displaced by a strong earthquake on the ocean floor can form a large wave called a? |
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Definition
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Term
| An earthquake that occurs after a large earthquake centered in the same area? |
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Definition
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Term
| The FORCE that opposes the motion of one surface as it moves across another surface is referred to as? |
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Definition
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Term
| Occurs when an earthquake's violent shaking suddenly turns loose, soft soil into liquid mud? |
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Definition
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Term
| How can you make your home more earthquake safe? |
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Definition
| Bolt down the foundation, reinforce walls and heavy furniture, replace glass with safety glass, put heavy items on low shelves |
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Term
| How many seismic stations are needed to locate the epicenter of an earthquake? |
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Definition
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