Workshop-Kathleen Redd & John Mattox-Validation by Metrics : The Value of Communication Skills
Michael Hodges, Chris Kohlenberger, Nolan Mattox, and Christian Vanderwall
description
Transcript of Michael Hodges, Chris Kohlenberger, Nolan Mattox, and Christian Vanderwall
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Michael Hodges, Chris Kohlenberger, Nolan Mattox, and Christian Vanderwall
Seismic Hazard Map PluginImprovement of ShakeMap Plugin
Custom Color Maps
USEIT Development Team II
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What is a ShakeMap?• Representation of ground
shaking, not magnitude• Data gaps common due to lack
of instruments– Predicted values added in these
areas• Produced by USGS after
earthquakes to assess possible damage and plan response
• Modeling scenario earthquakes such as Shakeout
• Map Types:– Peak Acceleration– Peak Velocity– Spectral Response– Rapid Instrumental Intensity
Source: http://earthquake.usgs.gov/earthquakes/shakemap/sc/shake/Landers/
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What is a Seismic Hazard Map?• Probability of exceeding a certain
amount of ground shaking, or ground motion, in 50 years
• Hazard depends on magnitudes and locations of likely earthquakes, how often they occur, and properties of local rocks and sediments
• Applications of Hazard Maps:– Building Codes– Highway bridge design– Insurance rates– Business and land-use planning– Estimations of stability and landslide
potentials of hillsides– Construction standards for waste-disposal
facilities– Retrofit priorities– Allocation planning of assistance funds for
education and preparedness (FEMA)– Concerned general publicSource: http://earthquake.usgs.gov/hazards/products/conterminous/2008/maps/wus/2hzSA.wus2pc50.jpg
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Custom Color Maps
Landers ShakeMap (CPT)
Landers ShakeMap (Custom Smooth)
Landers ShakeMap (Custom Discrete)
Landers ShakeMap (Magnitude Threshold)Custom Color Map GUI
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Seismic Hazard Map Plugin
Western US Peak Ground Acceleration, 2% in 50 years, 1150m/s
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ShakeMap Plugin
User Generated ShakeMap
ShakeMap Interface
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Earthquake Statistics Calculator
• Calculates magnitude-frequency distribution of an earthquake catalog
• Compares with Gutenberg-Richter Law– b =
• Graph displays cumulative and incremental distribution
• Useful for testing completeness and validity of a series of earthquakes within a given catalog
Graph of Magnitude Frequency Distribution for Felzer Catalog