Term
| what motion does a strike slip fault have? |
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Definition
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they slide horizontal past one another |
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Term
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Definition
| A fault that last moved in the distant past and probably won’t move again in the near future, yet is still recognizable because of displacement across the fault plane. |
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Term
| What is the best way to deal with hazards? |
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Definition
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Term
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Definition
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Term
| Whats the difference between catastrophe and disaster? |
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Definition
| Catastrophe has far worse economic/humanlife damage |
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Term
| what ocean did the 2004 tsunami happen in initially |
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Definition
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Term
| Why did New Orleans flood? |
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Definition
| It's built under sea level and the levies failed. A hurricane brushed by and fucked shit up. Also voodoo magic may have had something to do with it. |
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Term
| the Colombian volcano - _________ |
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Definition
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Term
| ________ travel faster than S waves |
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Definition
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Term
| landslides, liquefaction, tsunamis, fires, floods, diseases are examples of |
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Definition
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Term
| Why is it important to know the history of natural hazards in that area? |
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Definition
| So you know if your house will flood or succumb to earthquakes. basically so you dont get screwed by the weather. |
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Term
| how do seismologists determine the distance from their seismometer to the epicenter of an earthquake |
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Definition
| The use the arrival times of the S waves and P waves |
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Term
| Why is it sometimes problematic to issue hazard warnings? |
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Definition
| They are not always accurate |
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Term
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Definition
| a fault which has had displacement or seismic activity during the geologically recent period. |
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Term
| what happens when when the ground ruptures in an earthquake? |
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Definition
| a near surface fault has broken through to the surface |
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Term
| what is the elastic rebound? |
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Definition
| an explanation for how energy is spread during earthquakes. As plates on opposite sides of a fault are subjected to force and shift, they accumulate energy and slowly deform until they break |
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Term
| why is land use planning is effective for hazards |
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Definition
| because we can’t control the environmental hazard that is going to happen all we can do is make sure people stay out of harms way |
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Term
| earthquakes _______ occur at places other than plate boundaries |
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Definition
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Term
| during strain accumulation phase rocks are deformed ________ |
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Definition
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Term
| volcanoes, earthquakes, floods, landslides, storms |
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Definition
| dangerous natural processes |
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Term
| A _______ nation suffers more than its inverse during natural disasters |
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Definition
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Term
| recurrence interval of a disastrous event |
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Definition
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Term
| an occurrence interval is known as a _________ |
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Definition
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Term
| what increases the temperature of the atmosphere in turn increasing the temperature of the oceans and warm ocean waters are the energy that drive a lot of weather related events |
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Definition
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Term
| A benefit of volcanism is ________ |
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Definition
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Term
| how can emission of radon gas can be useful? |
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Definition
| in prediction of earthquakes because the fracturing of rocks allows the radon to move |
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Term
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Definition
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Term
| most of the large earthquakes in the united states are ________ earthquakes |
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Definition
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Term
| How are the magnitude and frequency of natural hazard events typically related? |
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Definition
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Term
| how are mass and frequency of natural hazards typically related? |
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Definition
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Term
| what does injection of liquid wastes into the subsurface do? |
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Definition
| it increases fluid pressure and reduces friction on rocks in the subsurface |
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Term
| what does the Richter magnitude mean? |
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Definition
| its a scale that assigns a single number to quantify the amount of seismic energy released by an earthquake |
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Term
| intensity of a natural hazard in terms of the amount of energy released |
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Definition
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Term
| the what of an earthquake has no varies to its location? |
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Definition
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Term
| more damages associated with hazards of __________ frequency and magnitudes |
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Definition
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Term
| natural events causing great loss of life or property |
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Definition
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Term
| what differed between New Madrid earthquakes and California earthquakes |
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Definition
| new madrid quakes are intra-plate earthquakes |
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Term
| even though the 1985 eruption of Nevada Del Ruiz had great prediction, what went wrong? |
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Definition
| people just didn’t pay attention to the warning |
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Term
| hazardous processes can become catastrophe with what? |
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Definition
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Term
| Ground shaking tilting and ground rupture are examples of |
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Definition
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Term
| It is important to determine the _______ of risk of natural disasters where you live |
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Definition
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Term
| most natural hazards are what kind of events? |
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Definition
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Term
| most natural hazards are ________ events |
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Definition
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Term
| ____________ cannot be used for earthquake prediction |
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Definition
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Term
| tsunamis are not a hazard to ____________ |
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Definition
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Term
| Catastrophe requires what kind of recovery period? |
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Definition
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Term
| Why are precursor events important? |
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Definition
| so you can have a warning that something bad is going to happen and have time to get the hell outta dodge |
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Term
| ___________ does not cause earthquakes |
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Definition
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Term
| social and psychological impacts are examples of |
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Definition
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Term
| What is the concept of acceptable risk? |
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Definition
| that level of earthquake effects which is judged to be of sufficiently low social and economic consequence |
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Term
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Definition
| the amplitude of ground motion |
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Term
| what is important in determining the intensity of an earthquake |
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Definition
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Term
| what causes the wave crest to rise? |
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Definition
| the forward movement of the ocean's water due to the oscillation of water particles by the frictional drag of wind over the water's surface. |
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Term
| why does population increase affect the number of catastrophic events |
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Definition
| the more people that are confined in an area, the higher the body count is. |
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Term
| what is the focus of an earthquake? |
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Definition
| the position where the strain energy stored in the rock is first released, marking the point where the fault begins to rupture. |
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Term
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Definition
| the process by which saturated, unconsolidated sediments are transformed into a substance that acts like a liquid. |
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Term
| how many seismometers are needed to determine the epicenter of an earthquake |
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Definition
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Term
| _________ travel slower in shallow water |
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Definition
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Term
| How do we get surface waves? |
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Definition
| when P and S waves reach the surface |
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Term
| Can tsunamis kill people and damage things 1000s of miles away from the earthquake that caused it? |
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Definition
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Term
| what’s the difference between a reactive response and an anticipatory response |
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Definition
| – reactive – after – anticipatory – before |
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