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Investigating seismic hazard across timescales using field methods and numerical modeling

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Manage episode 470203153 series 1399341
Content provided by USGS, Menlo Park (Scott Haefner) and U.S. Geological Survey. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by USGS, Menlo Park (Scott Haefner) and U.S. Geological Survey or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.

Betsy Madden, San Jose State University

Seismic hazard assessments currently depend on fault slip rates, the cumulative offset over many earthquakes along individual faults, to determine the probability of earthquakes of a certain magnitude over a certain time period and potential ground motions. Geologic fault slip rates are estimated by a combination of field and laboratory techniques. Such data can be generated synthetically with mechanical models that capture slip rate variations along complex, three-dimensional fault networks. I will discuss opportunities provided by these synthetic data, as well as integration of the results with dynamic rupture models of individual earthquakes.

  continue reading

20 episodes

Artwork
iconShare
 
Manage episode 470203153 series 1399341
Content provided by USGS, Menlo Park (Scott Haefner) and U.S. Geological Survey. All podcast content including episodes, graphics, and podcast descriptions are uploaded and provided directly by USGS, Menlo Park (Scott Haefner) and U.S. Geological Survey or their podcast platform partner. If you believe someone is using your copyrighted work without your permission, you can follow the process outlined here https://ppacc.player.fm/legal.

Betsy Madden, San Jose State University

Seismic hazard assessments currently depend on fault slip rates, the cumulative offset over many earthquakes along individual faults, to determine the probability of earthquakes of a certain magnitude over a certain time period and potential ground motions. Geologic fault slip rates are estimated by a combination of field and laboratory techniques. Such data can be generated synthetically with mechanical models that capture slip rate variations along complex, three-dimensional fault networks. I will discuss opportunities provided by these synthetic data, as well as integration of the results with dynamic rupture models of individual earthquakes.

  continue reading

20 episodes

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