Working Meeting: Finite-Fault Simulations, Dec. 11 2012

Meeting topic: Progress update and discussion on finite-fault simulation validation exercise (Task E)

The validation exercise initiated in 2011 has been completely re-hauled into a more cohesive project to better address the needs of various stakeholders, including NGA-East. Many of the input parameters have been fixed and uniform post-processing schemes have been defined to allow a better comparison of simulation results. The purpose of this working meeting is to review recent progress on the validation of existing ground motion simulation methods and to define the path forward for 2013. We will first present the role of the validation and simulations in NGA-East and follow with the new validation protocol. Various modelers will present preliminary results of validation as well as the limitations and issues encountered so far. Results include validation against A. scenario events (Loma Prieta, Northridge, Whittier and Saguenay) and B. NGA-West1 GMPEs (2008).

December 11, 2012
Download the final agenda (updated 12/11/2012).

View the video of the Dec. 11 morning session on YouTube – before lunch

View the video of the Dec. 11 afternoon session on YouTube – after lunch

9:30-9:35 Introductory remarks (Y. Bozorgnia)
9:35-10:00 Purpose of the meeting, place of simulations in the NGA-East project scope, planned schedule for all simulations and validation schemes (C. Goulet, N. Abrahamson)
10:00-10:20 Overview of methods considered in the validation (P. Somerville)
10:20-10:40 Part B. Validation against GMPEs: scenarios, criteria and results (R. Kamai)
10:40-11:00 Discussion
11:00-11:15 Break
11:15-11:35 Part A. Validation against past events: Scenarios and stations selection
(K. Wooddell)
11:35-11:50 Part A. Todays’ scenarios: definition of fixed parameters (P. Somerville)
11:50-12:05 Part A. Correction of recordings to reference rock (J. Stewart)
12:05-12:35 Part A. Validation against past events – results and discussions, Graves and Pitarka method (J. Bayless, R. Graves)
12:35-­13:35 Lunch
13:35-14:05 Part A. Validation against past events – results and discussions, SDSU method (K. Olsen, R. Takedatsu)
14:05-14:35 Part A. Validation against past events – results and discussions, UCSB method (R. Archuleta, J. Crempien)
14:05-14:35 Additional Presentation – U. of Nevada Reno method overview (not in agenda) (J. Anderson)
14:35-15:05 Validation plans for SMSIM (Part A. and B.) (C. Di Alessandro)
15:05-15:20 Break
15:20-15:50 Part A. Validation against past events – results and discussions, EXSIM method (K. Assatourians, G. Atkinson)
15:50-16:30 Discussion
16:30-17:00 Summary of the day and discussion of remaining issues (N. Abrahamson)

Who should attend the Working Meetings?
– All members of the TI team
– Representatives of the PPRP
– Invited team members and experts
– Other interested individuals

The venue (in-person attendance)
The meeting will be hosted at the Berkeley International House, on the UC Berkeley campus (see IHouse website for directions). There is no hotel room block for this event, however, nearby hotels include the Durant Hotel (short walking distance) and the Hotel Shattuck Plaza. Other facilities can be found online.

Remote login (access to meeting via internet and phone)
Participants who registered for remote attendance will receive the web and phone information via e-mail the week before the event.

Other related events
For the convenience of attendees, note that this meeting is followed by the USGS National Seismic Hazard Mapping Project Workshop on December 12-13.

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