Overview of the US NRC Collaborative Research Program to Assess - - PowerPoint PPT Presentation

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Overview of the US NRC Collaborative Research Program to Assess - - PowerPoint PPT Presentation

Jan 08, 2023 162 likes •383 views

Overview of the US NRC Collaborative Research Program to Assess Tsunami Hazard For Nuclear Plants on the Atlantic and Gulf Coasts A.M. Kammerer, U.S. ten Brink and V.V. Titov Dr. Annie Kammerer, P.E. 14 th WCEE Paper 15-007 1 2 NRC Tsunami

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Overview of the US NRC Collaborative Research Program to Assess Tsunami Hazard For Nuclear Plants on the Atlantic and Gulf Coasts

A.M. Kammerer, U.S. ten Brink and V.V. Titov

  • Dr. Annie Kammerer, P.E.

14th WCEE Paper 15-007

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NRC Tsunami Research Program

  • NRC

– funding agency – managing coordination with research partners – integrating research into other US efforts

  • USGS

– developing source database and localized modeling for screening – Developing PTHA methodology

  • NOAA

– global modeling

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NRC RESEARCH

Pacific Coast Atlantic Coast Gulf Coast Hawaii

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Research Goals

  • Better understanding for all US coasts
  • Development of a source database
  • Integration of landslide modeling
  • Determination of probable maximum

tsunami (PMT) hazard levels (deterministic)

  • Determination of 10,000 year hazard levels

through PTHA (probabilistic)

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Size of Tsunami (m) Recurrence Interval (yr)

≡(annual probability of exceedence)-1

1 10 100 1000 10000 1 10 100 1000

Distant Earthquakes Local Earthquakes Landslides Asteroid Impact Volcanoes

Magnitude/frequency

  • f tsunami sources

Power et al., 2005

NRC Seismic Hazard

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Tsunami Sources

  • Near field landslides

– Atlantic and Gulf continental shelves

  • Far field landslides

– Canary Islands – Glaciated margins of northern Europe and Canada (Storegga landslide, Norway, Eastern Scotian margin, 1929 Grand Banks landslide)

  • Near field seismic

– (US Pacific Coast Only)

  • Far field seismic

– West of Gibraltar (Lisbon 1755 source) – Caribbean Seismic Zones

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Tsunamigenic Landslide Potential

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Data collection, review of current state of knowledge, interpretation of data, basic modeling

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Additional interpretation of data, basic modeling (also published in Marine Geology special publication)

annie.kammerer@nrc.gov

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Modeling of Sources

Caribbean Plate

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Modeling Caribbean Sources

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Puerto Rico Trench

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Currituck Landslide

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Currituck Landslide

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Currituck Landslide

Bottom Friction Modeling Details

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NOAA Modeling

  • NOAA to use UGSG source information to add

landslide capability to global (MOST) model

  • NOAA modeling addresses “linear” part of PMT

and PTHA analyses

  • Site-specific inundation modeling performed

separately

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Canary Islands

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PTHA

  • PTHA = Probabilistic tsunami hazard

assessments

  • Focus of significant US research efforts
  • Techniques analogous to probabilistic

seismic hazard assessment (PSHA), which are the basis of US NRC seismic hazard guidance

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Probabilistic Tsunami Hazard

Thio, Somerville and Polet

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Questions