SI2-SSI: A Sustainable Community Software Framework for Petascale Earthquake ModelingThomas H. Jordan (USC), Jacobo Bielak (CMU), Yifeng Cui (UCSD), Kim B. Olsen (SDSU)

S C E Can NSF+USGS center

SI2-SSI Software Case Study: SCEC Broadband PlatformThe SCEC Broadband Platform (BBP) generates 0-10 Hz ground mo-tions using deterministic low-frequency and stochastic high-frequency simulations. The Broadband platform integrates scientific software ele-ments including rupture generation, low-frequency deterministic seis-mogram synthesis, high-frequency stochastic seismogram synthesis, and non-linear site effects. These complex scientific codes have been integrated into a system that supports easy on-demand computation of broadband seismograms. The Broadband platform is designed to be used by both geoscientists and engineers with some experience inter-preting ground motion simulations.

Fig 1: The SCEC Broadband Platform integrates scientific research programs into a processing system that enables repeatable comparison of results between alternative methods.

Emerging Broadband Platform Software User Community:Driven by the need of seismic hazard projects to supplement the existing recorded ground motion datasets, geoscientists, building engineers, and computer scientists are working together to develop and use the Broadband Platform for two SSHAC Level 3 seismic safety studies: (1) SWUS, and (2) NGA-E.SWUS Ground Motion Characterization (GMC) SSHAC Level 3 Project is co-spon-sored by Pacific Gas & Electric Company (PG&E) and Arizona Public Service (APS) as requested by United States Nuclear Regulatory Commission (US NRC). The Broadband software is used to calculate ground motions for a reference site condi-tion for earthquakes from 5 .0 to 8.5 Mw at distances from 0 to 350km.The NGA-East Ground Motion Characterization project is a SSHAC Level 3 seismic hazard analysis procedure lead by Pacific Earthquake Engineering Research Center (PEER). NGA-East will develop GMPEs with well characterized median, standard de-viation (aleatory variability), and logic trees (epistemic uncertainty) that provide aver-age horizontal ground motions (PGA, PGV and 5%-damped PSA for T=0.01-10s) at hard rock sites located up to 1,000 km from future earthquakes in Central North America in magnitude range from 4.0 to 8.2 Mw.

The SEISM Project is supported by the National Science Foundation, award No. 1148493. Additional SCEC team members include: J.W. Baker, G.C. Beroza (Stanford); P. Chen (U. of Wyoming); E.M. Dunham (Stanford); S.M. Day (SDSU); R.W. Graves (USGS); I. Iervolino (U. Naples, Italy); N. Luco (USGS); P.J. Maechling (USC); J.P. Stewart (UCLA); R. Taborda (CMU); F. Zareian (UCI). Private and international partners include: Pacific Gas & Electric Co. and the REAKT European project. Scientific publications and additional information about the various software elements and platforms can be found at http://scec.usc.edu/scecpedia and at www.scec.org.

Software Sustainability Strategies:Commercial Broadband Platform users have stated their plans to use the software on future projects including for a 2016 nuclear fragilities study and a 2016 California dams hazard update, for the NGA-West3 project in 2018 leading to use in 2020 California Building Code development, and for SWUS-2 and NGA-East2 in 2023 leading to use in 2025 Nuclear power plant hazard update. Current Broadband Platform funding in-cludes NSF SI2 SEISM award and funding from private companies (PG&E and Arizona Public Service). The California Department of Water Resources recently offered a pos-sible consulting contract for Broadband Platform support (right).SCEC’s Broadband Platform software sustainability strategies include: Keep the soft-ware development costs at a modest level (~2-3 FTE). Integrate the best available sci-entific modules into the software. Regularly release improved versions of Broadband as open-source software. Release the software under a license (Apache 2) that is accept-able to state and Federal agencies. Continue the onging group verification and valida-tion exercises to build user confidence in the software. Implement software features and enhancements guided by a software development roadmap proposed by users.

RFQ No. 10091115

STATE OF CALIFORNIA – CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor DEPARTMENT OF WATER RESOURCES Division of Engineering 1416 9th Street, Room 406-10 Sacramento, CA 95814

REQUEST FOR QUALIFICATIONS NO. 10091115Synthetic Seismic Record Library Development Services

TO ALL PROSPECTIVE APPLICANTSOctober 21, 2013

The Department of Water Resources (DWR), Division of Safety of Dams invites individuals or individuals associated with a firm with extensive background in Engineering Seismology to submit a Statement of Qualifications (SOQ). The Department of Water Resources (DWR) is seeking an individual (who may be associated with a firm) to provide engineering seismology services. In order for DWR to better analyze the effects of high magnitude earthquake events on regulated dam structures, the selected Contractor will help DWR staff to (1) establish a library of synthetic ground motion records, (2) develop procedures and infrastructure to develop additional synthetic time histories, (3) implement the Broadband Platform software developed by the Southern California Earthquake Center (SCEC), and (4) train DWR personnel in SCEC software usage.

A copy of the Request for Qualifications (RFQ) No. 10091115 is enclosed. The RFQ contains a description of the qualifications required and directions for preparation and submittal of your response. The SOQ must be received by 2:00 p.m. on Tuesday, November 12, 2013, at the address indicated in Section VI of the enclosed RFQ.

The Contractor may be required to work independently or partner with other DWR employees or private professionals but always at the direction of the DWR.

The anticipated term of this agreement is January 7, 2014 through December 31, 2015.

The Department reserves the right to cancel or modify this RFQ up to the date and time the SOQ is due andto waive non-material defects with any of the SOQs. Additionally, the Department is not responsible for any preparation costs incurred by parties submitting a SOQ.

A copy of the State’s General Terms and Conditions is not provided in this RFQ. However, they are available at Internet site http://www.ols.dgs.ca.gov/standard+language and may be downloaded and printed for your files. These terms and conditions will become a part of the contract language and are NON-NEGOTIABLE.Any issues regarding these terms and conditions MUST be addressed during the question and answer period. If you do not have Internet capabilities, you may request a hard copy by contacting the person listed in Section II of the RFQ.

The Contractor Certification Clauses (also available at the Internet site referenced above) contain terms andconditions that may apply to person(s) doing business with the State of California, and that may apply to your agreement. If awarded the contract, you must sign and return Page One of the CCC 307. The Certification must be renewed every three (3) years and will be updated when the State makes revisions to the clauses.

Please follow instructions in Section II of the enclosed RFQ for questions regarding services to be performed or submission requirements.

Sincerely,

Douglas Ellis, Contract ManagerDivision of Safety of Dams

Enclosure

Bid 10091115State of California

10/23/2013 4:10 PM p. 3

Fig 2: The Broadband Platform development team includes geoscientists, earthquake engi-neers, and experienced software developers working closely together, then preserving the group’s scientific, enginering and technical agreements in open-source software and data distributions.

Fig 3: The Broadband Platform sustain-ability strategy is to meet the needs of public and commericial groups that perform seismic hazard studies, such as the California Department of Water Resources, who has shown public in-terest in using the software.

RuptureGenerator(Optional)

Low-FrequencySynthesis

High-FrequencySynthesis

Non-LinearSite Response

ExtractResponseSpectra

Verificationand Validation

(optional)

RuptureDescription

(SRF)

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ObservedSeismograms(or alternative

simulation)

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Longitude

Latitude−118.70−118.65

−118.60−118.55

−118.50−118.45

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Graves & Pitarka, Scenario: M6.6, REV, R=20 km

AS08BA08CB08CY08Median of 4 NGA ModelsAcceptance Criteria