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ShakeOut Response Planning - Models and Simulations Group

The TeraGrid supports some computers that will kill running jobs and start up an "urgent" job, such as those needed after a big earthquake.

We have contacted the TeraGrid about setting up an "urgent" computing request to run "quick response" simulations to 1) confirm the focal mechanism (by comparison to ShakeMap ground motion distribution), and 2) provide low frequency seismograms at locations where there is sparse network coverage.Prior to ShakeOut Event:

  • Establish a modeling account at SDSC for rapid simulation.
  • Load a TeraShake region velocity mesh.
  • Decimate the mesh to 400m to reduce the simulation run time
  • Arrange "on-demand" TeraGrid reservation with SDSC and other sites.

During Earthquake

  • Duck and Cover

After Shaking Stops

  • Based on initial hypocenter, focal mechanism, and slip distribution,
    select an appropriate CyberShake SRF rupture. There are north-breaking,
    southern San Andreas ruptures in the CyberShake catalog of approximately the right magnitude.
  • Configure a 0.25Hz wave propagation simulation using AWP-Olsen at SDSC.
  • Run simulation. Estimated run time is about 1 hour.

After Simulation Completes

  • Create a cumulative peak Spectral Acceleration Map 6Seconds - Post on SCEC EQ response site
  • Create a instantaneous ground motion animation - Post on SCEC EQ response web site.

After Data Products are Posted

  • Based on feedback to first result, configure and 0.5Hz simulation with revised source description, hypocenter, and magnitude.

Back to 2008.11.13-Great Southern California ShakeOut