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The Limit of Inundation of the September 29, 2009, Tsunami on Tutuila, American Samoa

Open-File Report 2010-1018

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Abstract

U.S. Geological Survey scientists investigated the coastal impacts of the September 29, 2009, South Pacific tsunami in Tutuila, American Samoa in October and November 2009, including mapping the alongshore variation in the limit of inundation. Knowing the inundation limit is useful for planning safer coastal development and evacuation routes for future tsunamis and for improving models of tsunami hazards. This report presents field data documenting the limit of inundation at 18 sites around Tutuila collected in the weeks following the tsunami using Differential GPS (DGPS). In total, 15,703 points along inundation lines were mapped. Estimates of DGPS error and uncertainty in interpretation of the inundation line are provided as electronic files that accompany this report.

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Additional Publication Details

Publication type:
Report
Publication Subtype:
USGS Numbered Series
Title:
The Limit of Inundation of the September 29, 2009, Tsunami on Tutuila, American Samoa
Series title:
Open-File Report
Series number:
2010-1018
Edition:
-
Year Published:
2010
Language:
ENGLISH
Publisher:
U.S. Geological Survey
Contributing office(s):
Pacific Science Center
Description:
Report: vi, 27 p. ; Inundation line data (comma-delimited text file; Excel; ESRI); Metadata (ASCII; XML; FAQ as HTML)
Time Range Start:
2009-10-01T12:00:00
Time Range End:
2009-11-30T12:00:00
Online Only (Y/N):
Y
Additional Online Files(Y/N):
Y