Tsunami inundation maps of Elfin Cove, Gustavus, and Hoonah, Alaska

Description

In this report, we evaluate potential tsunami hazards for southeastern Alaska communities of Elfin Cove, Gustavus, and Hoonah and numerically model the extent of inundation from tsunami waves generated by tectonic and landslide sources. We perform numerical modeling of historic tsunami events, such as the tsunami triggered by the 1964 Great Alaska Earthquake, and the tsunami waves generated by the recent 2011 Tohoku and 2012 Haida Gwaii earthquakes. Hypothetical tsunami scenarios include variations of the extended 1964 rupture, megathrust earthquakes in the Prince William Sound and Alaska Peninsula regions, and a Cascadia megathrust earthquake. Local underwater landslide events in Taylor Bay and Port Frederick, and a rockslide in Tidal Inlet are also considered as possible tsunamigenic scenarios. Numerical modeling results, combined with historical observations in the region, are intended to provide guidance to local emergency management in tsunami hazard assessment, evacuation planning, and public education for the reduction of future tsunami risk.

Resources

Name Format Description Link
0 http://dx.doi.org/10.14509/23244
0 http://dx.doi.org/10.14509/27241
0 http://dx.doi.org/10.14509/29126
0 http://dx.doi.org/10.14509/14474
0 http://dx.doi.org/10.14509/2860
0 http://dx.doi.org/10.14509/26671
0 http://dx.doi.org/10.14509/25055
0 CSDGM IMPORT ERROR: No digtinfo/formcont http://dx.doi.org/10.14509/29404
0 http://dx.doi.org/10.14509/29404
0 http://dx.doi.org/10.14509/21001

Tags

  • icy strait
  • topography
  • coastal and river
  • engineering
  • seismic hazards
  • inundation
  • modeling
  • port frederick
  • slope instability
  • earthquake related slope failure
  • holocene
  • engineering geology
  • geology
  • slope
  • coastal
  • faulting
  • rock avalanche
  • earthquake
  • taylor bay
  • slides
  • flood
  • rockfall
  • humpback creek
  • fault displacement
  • southeast alaska
  • tidal inlet
  • active fault
  • landslide
  • hazards
  • emergency preparedness
  • raster image
  • tsunami
  • geologic hazards
  • bartlett cove
  • tides

Topics

  • Local Government

Categories