Coastal Structures and Solutions to Coastal Disasters Joint Conference 2015
Modeling Tsunami Sources and Their Propagation in the Atlantic Ocean for Coastal Tsunami Hazard Assessments and Inundation Mapping along the U.S. East Coast
Publication: Coastal Structures and Solutions to Coastal Disasters 2015: Tsunamis
ABSTRACT
Numerical simulations are performed to develop tsunami inundation maps for the U.S. East Coast (USEC), as envelopes of surface elevations caused by the probable maximum tsunamis (PMTs) in the Atlantic Ocean basin. These PMTs are triggered by various sources, identified from historical records or hypothetical, including : (i) near-field submarine mass failures (SMF) on or near the continental shelf break; (ii) an extreme hypothetical M9 seismic event occurring in the Puerto Rico Trench; (iii) a repeat of the historical 1755 M9 (Lisbon) earthquake occurring in the Madeira Tore Rise; and (iv) large scale volcanic flank collapses (80 and 450 km3) of the Cumbre Vieja volcano (CVV) on La Palma, in the Canary Archipelago. Tsunamis caused by: (1) earthquakes, are obtained from the estimated coseismic seafloor deformation; (2) SMF sources, modeled as rigid slumps, are generated using the 3D non-hydrostatic model NHWAVE; and (iii) the CVV sources are modeled as subaerial flows of a heavy fluid, using a 3D Navier-Stokes model. For each source, tsunami propagation to the USEC is then modeled in a series of nested grids of increasingly fine resolution, by one-way coupling, using FUNWAVE-TVD, a nonlinear and dispersive (2D) Boussinesq model. High-resolution inundation maps have been developed based on these results, so far for about a third of the USEC. A comparison of coastal inundation from each tsunami source shows similar alongshore patterns of higher and lower inundation, whatever the initial source direction; this is due to wave focusing and defocusing effects induced by the shelf bathymetry. Once developed for the entire USEC, inundation maps will fully quantify coastal hazard from the selected PMTs and allow developing site-specific mitigation measures and evacuation plans. Besides maximum inundation, other “products” available at high-resolution are maximum momentum flux, currents, and vorticity, although these are not systematically developed as maps in this phase of work.
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REFERENCES
Abadie, S., J.C. Harris, S.T. Grilli and R. Fabre (2012). “Numerical modeling of tsunami waves generated by the flank collapse of the Cumbre Vieja Volcano (La Palma, Canary Islands): tsunami source and near field effects,” J. Geophys. Res., 117, C05030.
Barkan, R., ten Brick, U.S., Lin, J. (2008). “Far field tsunami simulations of the 1755 Lisbon earthquake: Implication for tsunami hazard to the U.S. East Coast and the Caribbean,” Marine Geol., 264, 109-122.
Gica, E., M. C. Spillane, V. V. Titov, C. D. Chamberlin, and J. Newman (2008). “Development of the forecast propagation database for NOAAs Short-Term Inundation Forecast for Tsunamis,” NOAA Tech. Memo. OAR PMEL-139.
Grilli A.R. and S.T. Grilli (2013a). “Modeling of tsunami generation, propagation and regional impact along the U.S. East Coast from the Azores Convergence Zone,” Research Report no. CACR-13-04, 20 pp, University of Delaware. http://www.oce.uri.edu/grilli/grilli-grilli-cacr-13-04.
Grilli A.R. and S.T. Grilli (2013b). “Modeling of tsunami generation, propagation and regional impact along the upper U.S East coast from the Puerto Rico trench,” Research Report no. CACR-13-02, 18 pp., University of Delaware http://www.oce.uri.edu/grilli/grilli-grilli-cacr-13-02.
Grilli, A.R., Grilli S.T., David, E. and C. Coulet (2015b). “Modeling of tsunami propagation in the Atlantic Ocean Basin for tsunami hazard assessment along the North Shore of Hispaniola,” In Proc. 25th Offshore and Polar Engng. Conf. (ISOPE15, Kona, HI, USA. June 21-27, 2015), 733-740.
Grilli, S.T., Ioualalen, M, Asavanant, J., Shi, F., Kirby, J. and Watts, P. (2007). “Source Constraints and Model Simulation of the December 26, 2004 Indian Ocean Tsunami,” J. Waterway Port Coast. Oc. Engng., 133(6), 414-428.
Grilli, S.T., S. Dubosq, N. Pophet, Y. Prignon, J.T. Kirby and F. Shi (2010). “Numerical simulation and first-order hazard analysis of large co-seismic tsunamis generated in the Puerto Rico trench: near-field impact on the North shore of Puerto Rico and far-field impact on the US East Coast,” Nat. Haz. Earth Syst. Sc., 10, 2109-2125.
Grilli, S.T., J.C. Harris, T. Tajalibakhsh, T.L. Masterlark, C. Kyriakopoulos, J.T., Kirby and F. Shi (2013). “Numerical simulation of the 2011 Tohoku tsunami based on a new transient FEM co-seismic source: Comparison to far- and near-field observations,” Pure Appl. Geophys., 170, 1333-1359.
Grilli S.T., O’Reilly C., Harris J.C., Tajalli-Bakhsh T., Tehranirad B., Banihashemi S., Kirby J.T., Baxter C.D.P., Eggeling T., Ma G. and F. Shi (2015a). “Modeling of SMF tsunami hazard along the upper US East Coast: Detailed impact around Ocean City, MD,” Nat. Haz., 76(2), 705-746.
Ioualalen, M., Asavanant, J., Kaewbanjak, N., Grilli, S.T., Kirby, J.T. and P. Watts (2007). “Modeling the 26th December 2004 Indian Ocean tsunami: Case study of impact in Thailand,” J. Geophys. Res., 112, C07024.
Kirby, J.T., Shi, F., Tehranirad, B., Harris, J.C. and S.T. Grilli (2013). “Dispersive tsunami waves in the ocean: Model equations and sensitivity to dispersion and Coriolis effects,” Ocean Modell., 62, 39-55.
Ma G., Shi F., Kirby J.T. (2012). “Shock-capturing non-hydrostatic model for fully dispersive surface wave processes,” Ocean Modell., 4344, 2235.
Madsen P.A., D.R. Fuhrman and H. A. Schaffer (2008) “On the solitary wave paradigm for tsunamis,” J. Geophys. Res., 113, C12012.
Okada, Y. (1985). “Surface deformation due to shear and tensile faults in a half space,” Bull. Seismol. Soc. America, 75(4), 1135-1154.
Shi, F., J.T. Kirby, J.C. Harris, J.D. Geiman and S.T. Grilli (2012). “A High-Order Adaptive Time-Stepping TVD Solver for Boussinesq Modeling of Breaking Waves and Coastal Inundation,” Ocean Modell., 43-44, 36-51.
Tappin, D.R., Watts, P., S.T. Grilli (2008). “The Papua New Guinea tsunami of 1998: anatomy of a catastrophic event,” Nat. Haz. Earth Syst. Sc., 8, 243-266.
Tappin D.R., Grilli S.T., Harris J.C., Geller R.J., Masterlark T., Kirby J.T., F. Shi, G. Ma, K.K.S. Thingbaijamg, and P.M. Maig (2014). “Did a submarine landslide contribute to the 2011 Tohoku tsunami?” Mar. Geol., 357, 344-361.
Ten Brink, U., Twichell D., Geist E., Chaytor J., Locat J., Lee H., Buczkowski B., Barkan R., Solow A., Andrews B., Parsons T., Lynett P., Lin J., and M. Sansoucy (2008). “Evaluation of tsunami sources with the potential to impact the U.S. Atlantic and Gulf coasts,” USGS Administrative report to the U.S. Nuclear Regulatory Commission, 300 pp.
Tehranirad B., Harris J.C., Grilli A.R., Grilli S.T., Abadie S., Kirby J.T. and F. Shi (2015). “Far-field tsunami impact in the north Atlantic basin from large scale flank collapses of the Cumbre Vieja volcano, La Palma,” Pure Appl. Geophys., 28pps. (published online 07/21/15).
Tehranirad, B., Shi, F., Kirby, J. T., Harris, J. C. and Grilli, S. (2011). “Tsunami benchmark results for fully nonlinear Boussinesq wave model FUNWAVE-TVD, Version 1.0,” Research Report No. CACR-11-02, University of Delaware.
Watts P., Grilli S.T., Kirby J.T., Fryer G.J. and D.R. Tappin (2003) “Landslide tsunami case studies using a Boussinesq model and a fully nonlinear tsunami generation model,” Nat. Haz. Earth Syst. Sc., 3, 391-402.
Wei, J., Kirby, J.T, Grilli, S.T. and Subramanya, R. (1995). “A Fully Nonlinear Boussinesq Model for Surface Waves. Part 1. Highly Nonlinear Unsteady Waves,” J. Fluid Mech., 294, 71-92.
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Coastal Structures and Solutions to Coastal Disasters 2015: Tsunamis
Pages: 1 - 12
Editors: Louise Wallendorf, U.S. Naval Academy and Daniel T. Cox, Ph.D., Oregon State University
ISBN (Online): 978-0-7844-8031-1
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© 2017 American Society of Civil Engineers.
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Published online: Jul 11, 2017
Published in print: Jul 11, 2017
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