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Regional Simulation of Anchorage M7.1 Earthquake using rWHALE

NHERI Center for Computational Modeling and Simulation

CMMI 1612843

PACIFIC EARTHQUAKE ENGINEERING RESEARCH CENTER

2020 Annual Meeting

Buildings Inventory Development

Tax Assessor’s

website

Web Automation Framework

Parcel Processor

Parcel Tax Records

Building Information

Models

Ø Tax Assessor’s Data § 97,421 Parcels§ 84,435 Buildings§ 12,000 in Eagle River

Ø Buildings Characteristics§ Residential§ Low Rise§ Earthquake Resistant

Ground Motion Characterization

üSeismic Hazard AnalysisoGround Motion ModelsoEarthquake Rupture Forecasts

üSite Data ProvidersoSoil Classification

EQ Hazard(OpenSHA Wrapper)

Record Selection & Scaling

PEER Database Client

PEER GroundMotionsDatabase

+ +

Ø Scenario-Based Ground Motion Simulation§ Spatially Correlated Intensity Measures§ Regional Records Selection & Scaling

Preliminary Results

Recorded GM Simulated GMRepair Cost [$Billion] 7.5 7.3Red Tags 3800 626Loss Ratio [%] 14.5 12.5

Parcels Loss Ratios Buildings Red Tags

Ø Research Opportunities§ Calibrate, Verify & Validate Computational Models

rWHALE

Anchorage Testbed Story Map

http://arcg.is/1X8DLu

Ø Documents the input, results and process

Ø Cloud app accessible through DesignSafe-CI§ Runs regional simulations on Stampede2 HPC§ Parallel computation on multiple nodes leveraging

hundreds of processing cores