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Workshop on Generation of Synthetic Strong Ground Motions

Dates: November 7th 1:00PM - November 8th 3:30 PM, 200
Location: University of Nevada, Reno, Nevada
Organizers: John G. Anderson, Ralph Archuleta, Steve Day, Yuehua Zeng

Primary focus group: Ground Motion
Other focus groups that might be most interested: Seismic Hazard Analysis, Implementation Interface, Source Physics

Workshop goals:

1. Achieve a SCEC consensus on how we will measure goodness of fit between seismograms.
2. Reviews of methods used by SCEC investigators to generate synthetics.
3. Discussion of future directions for SCEC in ground motion modeling.

The meeting will be open to the entire SCEC community. However, the SCEC grant to UNR to organize this conference did not anticipate as much interest as was shown at the SCEC annual meeting. Therefore, we may need to prioritize on whose travel can be reimbursed. Highest priority will go to participants who send us a 1-page (minimum) abstract that summarizes at least the following points:

  • What is the method that you use to generate synthetic seismograms?
  • What frequency band does this method apply to?
  • How do you know that the ground motions you generate are the correct solution to the wave equation for the boundary conditions that are applied?
  • How have you calibrated the parameters of the ground motion models to recorded strong ground motions?
  • How do you determine how well two seismograms agree with each other? How do you determine how well a set of seismograms agree with a set of data? How do you compare low-frequency waveforms between synthetics and data? How do you compare high-frequency synthetics with data? How do you compare broadband synthetics with data?
  • References publications describing your method.

To focus the discussion on the goodness of fit, in addition we will prepare sets of seismograms, and ask those who are able to apply their method to determine the similarity of various pairs and for a group of seismograms that are geographically distributed.

Selected participants will be asked to make presentations covering the above points, and giving examples of their results.

Reno has nonstop air service to Los Angeles, Oakland, San Jose, San Francisco, and several other western cities. The airport is about a ten minute ($15) taxi ride from the UNR campus. Parking on campus can be arranged, but car rentals for travel to and from the airport are substantially more expensive, and more time consuming, than taxi service. The university is about a half-mile walk from the downtown casino district, which also offers a selection of several fine restaurants.

Persons planning to attend should contact Pam Love, Administrative Assistant to the Nevada Seismological Laboratory, as soon as possible. Participants can stay in the University Inn, which is on the campus of the University of Nevada. We have reserved a block of rooms at the University Inn for the conference participants.