Term
What is one of the leading research centers for earthquakes? |
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Definition
California institute of technology |
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Term
why couldn't data from local seismographs initially be used to locate the epicenter? |
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Definition
the machines were overwhelmed by the power of the quake |
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Term
when do we know for sure that earthquakes will occur? |
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Definition
immediately after big event/aftershock quakes |
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Term
what caused the dust storms in the mountains? |
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Definition
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Term
what are the 2 reactions that scientists have to earthquakes? |
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Definition
fascination and devastation |
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Term
what kind of fault was responsible for the Northridge earthquake? |
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Definition
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Term
why didn't the Northridge earthquake rupture the ground surface? |
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Definition
it was so deep it did not peak the surface of the epicenter, it stopped 5 mi below |
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Term
How far from downtown los angeles is the san Andreas fault? |
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Definition
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Term
what is the direct link between the san andreas fault and the faults beneath los angeles? |
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Definition
the san andreas bends in southern cali causing thrust faulting. |
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Term
what causes thrust faulting? |
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Definition
collision and compression of plates |
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Term
What is the relationship between mountains and earthquakes in Cali? |
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Definition
ground forced up due to the collision/compression of faults |
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Term
How much higher were the nearby mountains after the northridge earthquake? |
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Definition
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Term
What was the significance of the 1983 Coalinga Earthquake? |
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Definition
blind thrust faults caused major damage in cali |
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Term
why had the oil industry been mapping blind thrust faults beneath los angeles for decades? |
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Definition
petroleum was trapped within the folds caused by faults |
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Term
what fault is the greatest danger to the city of LA? |
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Definition
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Term
what was the significance of the 1987 whittier narrows quake? |
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Definition
showed that blind thrust faults are in LA as well |
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Term
how many active faults lie beneath the city of LA? |
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Definition
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Term
What was the first earthquake in this swarm? |
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Definition
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Term
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Definition
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Term
how can earthquakes trigger other ones? |
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Definition
stress transferring to near by faults |
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Term
where was stress transferred to after the north ridge quake? |
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Definition
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Term
How is LA similar to a # of other major cities? |
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Definition
problems with the skyscrapers falling |
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