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Earthquake Patterns and Hazards in Nevada. Mike Freeman. Why earthquakes are hazards Probability & Predictions Where earthquakes occur in Nevada Pattern of earthquake hazards Geology of urban landscape: Reno Increasing the probability of a hazard Potential destruction in Nevada - PowerPoint PPT Presentation
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Earthquake Patterns Earthquake Patterns and Hazards in and Hazards in
NevadaNevada
Mike FreemanMike Freeman
►Why earthquakes are hazardsWhy earthquakes are hazards►Probability & PredictionsProbability & Predictions►Where earthquakes occur in Nevada Where earthquakes occur in Nevada ►Pattern of earthquake hazardsPattern of earthquake hazards►Geology of urban landscape: RenoGeology of urban landscape: Reno
Increasing the probability of a hazardIncreasing the probability of a hazard►Potential destruction in NevadaPotential destruction in Nevada►ConclusionConclusion
HazardsHazards
►What makes a Hazard?What makes a Hazard? UnavoidableUnavoidable DestructiveDestructive ForeseeableForeseeable UnpredictableUnpredictable With close proximity to peopleWith close proximity to people
Probabilities & PredictionsProbabilities & Predictions
►Almost impossible to predictAlmost impossible to predict
►Based on fault lines and geologyBased on fault lines and geology
►Can’t predict when, but can predict Can’t predict when, but can predict size and location approximations size and location approximations accuratelyaccurately
County County Seat/Other Town% Probability of Magnitude Greater Than
5 6 6.5 7
Carson City Carson City >90 70 50-55 12-15
Churchill Fallon 80-90 30-40 20-25 6-8
Clark Las Vegas 40-50 10-20 <5 <1
Douglas Minden >90 60-70 50-60 10-12
Elko Elko 30-40 10-15 6-8 0.5-1
Esmeralda Goldfield 80-90 20-30 5-10 <1
Eureka Eureka 40-50 10-15 4-6 <0.5
Humboldt Winnemucca 50-60 15-20 5-10 1-1.5
Lander Battle Mountain 60-70 15-20 10 1.5
Austin 60-70 20 10-15 2-3
Lincoln Pioche 30-40 6-10 2-3 <0.5
Lyon Yerington >90 60 40-45 12
Mineral Hawthorne >90 60 30-40 10-12
Nye Tonopah 70-80 20-30 5-10 <1
Beatty 70-80 30-40 20-30 12
Gabbs >90 40-50 20-25 6-8
Pershing Lovelock 50-60 10-20 10 1-2
Storey Virginia City >90 65-70 50 12-15
Washoe Reno >90 65-70 50 12-15
Gerlach 40 10-15 6-10 2-3
White Pine Ely 20-30 4-6 1.5-2 <0.5
Patterns: WherePatterns: Where
Patterns: Why they’re Patterns: Why they’re HazardsHazards
Nevada Population in 2005
Geology: Making areas more Geology: Making areas more hazardoushazardous
► Types of soils make Types of soils make earthquakes earthquakes stronger or weakerstronger or weaker
► Map of RenoMap of Reno
Hazardous PatternsHazardous Patterns
►Only a Hazard because of the Only a Hazard because of the proximity of human populations as proximity of human populations as outlined by early earthquakes which outlined by early earthquakes which caused little damagecaused little damage
►Pattern across Physical Nevada with Pattern across Physical Nevada with fault lines and geomorphologyfault lines and geomorphology
ReferencesReferences► The Nevada Seismology LabThe Nevada Seismology Lab
Http://www.seismo.unr.edu/htdocs/maps.htmlHttp://www.seismo.unr.edu/htdocs/maps.html► Earthquake hazards through USGSEarthquake hazards through USGS
http://earthquake.usgs.gov/research/hazmaps/haz101/http://earthquake.usgs.gov/research/hazmaps/haz101/haz101.phphaz101.php
► Earthquake probabilities through Nevada Bureau of Mines and Earthquake probabilities through Nevada Bureau of Mines and GeologyGeology http://www.nbmg.unr.edu/eqprob/eqprob.htmhttp://www.nbmg.unr.edu/eqprob/eqprob.htm
► Map collections of De la Mare LibraryMap collections of De la Mare Library http://www.delamare.unr.edu/Maps/http://www.delamare.unr.edu/Maps/
collections.html#organizationscollections.html#organizations► Dictionary.com referenceDictionary.com reference
http://dictionary.reference.com/browse/hazardhttp://dictionary.reference.com/browse/hazard► Population map derived from data provided by:Population map derived from data provided by:
http://quickfacts.census.gov/qfd/states/32/32510.htmlhttp://quickfacts.census.gov/qfd/states/32/32510.html