Source Characterization and Tsunami Modeling of Submarine Landslides Along the Yucatán Shelf/Campeche Escarpment, Southern Gulf of Mexico
Submarine landslides occurring along the margins of the Gulf of Mexico (GOM) represent a low-likelihood, but potentially damaging source of tsunamis. New multibeam bathymetry coverage reveals that mass wasting is pervasive along the Yucatán Shelf edge with several large composite landslides possibly removing as much as 70 km3 of the Cenozoic sedimentary section in a single event. Using GIS-based analysis, the dimensions of six landslides from the central and northern sections of the Yucatán Shelf/Campeche Escarpment were determined and used as input for preliminary tsunami generation and propagation models. Tsunami modeling is performed to compare the propagation characteristics and distribution of maximum amplitudes throughout the GOM among the different landslide scenarios. Various factors such as landslide geometry, location along the Yucatán Shelf/Campeche Escarpment, and refraction during propagation result in significant variations in the affected part of the Mexican and US Gulf Coasts. In all cases, however, tsunami amplitudes are greatest along the northern Yucatán Peninsula.
KeywordsTsunami Wave Tsunami Hazard Shelf Edge Submarine Landslide Tsunami Modeling
We would like to acknowledge the assistance of the Schmidt Ocean Institute, the captain and crew of the R/V Falkor, the David and Lucile Packard Foundation, Eve Lundsten, Krystle Anderson, and Brian Andrews. Nathan Miller, Uri ten Brink, David Tappin, and three anonymous reviewers provided helpful reviews which improved the manuscript. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the US Government.
- Adatte, T., Stinnesbeck, W., & Keller, G. (1996). Lithostratigraphic and mineralogic correlations of near K/T boundary clastic sediments in northeastern Mexico: Implications for origin and nature of deposition. In G. Ryder, D. Fastovsky, S. Gartner (Eds.), The Cretaceous–Tertiary event and other catastrophes in earth history: Boulder, Colorado, Geological Society of America Special Paper 307, 211–226.Google Scholar
- Amante, C., & Eakins, B.W. (2009). ETOPO1 1 arc-minute global relief model: Procedures, data sources and analysis. NOAA Technical Memorandum NESDIS NGDC-24. National Geophysical Data Center, NOAA. doi: 10.7289/V5C8276M.
- Bryant, W. R., Meyerhoff, A. A., Brown, N. K., Furrer, M., Pyle, T., & Antoine, J. W. (1969). Escarpments reef trends, and diapiric structures, eastern Gulf of Mexico. Bulletin American Association of Petroleum Geologists, 53, 2506–2542.Google Scholar
- Chaytor, J.D., Twichell, D.C., Lynett, P., & Geist, E.L. (2010). Distribution and tsunamigenic potential of submarine landslides in the Gulf of Mexico. In: D.C. Mosher, L. Moscardelli, R.C. Shipp, J.D. Chaytor, C.D. Baxter, H.J. Lee, & R. Urgeles (Eds.), Submarine mass movements and their consequences, advances in natural and technological hazards research (745–754), vol 28. Springer, Netherlands.Google Scholar
- Ewing, M., Worzel, J. L., Beall, A. O., et al. (1969). Initial reports of the deep sea drilling project (Vol. 1). Washington D.C.: U.S. Government Printing Office.Google Scholar
- Horrillo, J., Wood, A., Kim, G. B., & Parambath, A. (2013). A simplified 3-D Navier Stokes numerical model for landslide-tsunami: Application to the Gulf of Mexico. Journal Geophysical Research, 118, 6934–6950.Google Scholar
- Horrillo, J.J., Wood, A.L., Williams, C., Parambath, A., & Kim, G.-B. (2010). Construction of tsunami inundation maps in the Gulf of Mexico, Tech. Rep, National Tsunami Hazard Mitigation Program (NTHMP), National Weather Service Program Office, NOAA.Google Scholar
- Lawton, T. F., Shipley, K. W., Aschoff, J. L., Giles, K. A., & Vega, F. J. (2005). Basinward transport of Chicxulub ejecta by tsunami-induced backflow, La Popa basin, northeastern Mexico, and its implications for distribution of impact-related deposits flanking the Gulf of Mexico. Geology, 33, 81–84.CrossRefGoogle Scholar
- Locker, S. D., & Buffler, R. T. (1983). Comparison of lower Cretaceous carbonate shelf margins, northern Campeche Escarpment and northern Florida Escarpment, Gulf of Mexico. American Association of Petroleum Geologists. Studies in Geology, 15, 123–128.Google Scholar
- López-Venegas A.M., ten Brink U.S., Geist E.L (2008). Submarine landslide as the source for the October 11, 1918 Mona Passage tsunami: Observations and modeling. Marine Geology, 254(1), 35–46. Google Scholar
- National Geophysical Data Center/World Data Service (NGDC/WDS): Global Historical Tsunami Database. National Geophysical Data Center, NOAA. doi: 10.7289/V5PN93H7.
- Worzel, J.L., Bryant, W., Beall Jr., A.O., Capo, R., Dickinson, K., Foreman, H.P., Laury, R., McNeely, B.W., & Smith, L. (1970). Site 86 Initial Reports of the Deep Sea Drilling Project 10, Texas A & M University, Ocean Drilling Program, College Station, TX, United States, pp 25–47.Google Scholar