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Natural warning signs of tsunamis: Human sensory experience and response to the 2004 great Sumatra earthquake and tsunami in Thailand

Citation

Gregg, CE and Houghton, BF and Paton, D and Lachman, R and Lachman, J and Johnston, DM and Wongbusarakum, S, Natural warning signs of tsunamis: Human sensory experience and response to the 2004 great Sumatra earthquake and tsunami in Thailand, Earthquake Spectra, 22, (Supplement 3) pp. S671-S691. ISSN 8755-2930 (2006) [Refereed Article]

DOI: doi:10.1193/1.2206791

Abstract

Natural warning signs of tsunamis include ground shaking from earthquakes and unusual sea-level fluctuations, wave forms, and sounds. These signs can alert people to impending tsunamis, but no research has explored the recognizability of these signs or the social-cognitive factors that affect human behavioral response to them. Of 663 interviewees, 24% felt ground shaking during the earthquake; 69% saw something unusual about the ocean before the first wave reached land, mostly a receded shoreline; and 55% heard something unusual. Despite these levels of observation, most people did not evacuate. In fact, 65% saw other people in the danger zone at the time of the tsunami impact. Most respondents had to run for their lives but could not identify a safe place. There are major differences in experience among north, central, and southern coastal Thailand, reflecting social, topographical, and hydrological factors. © 2006, Earthquake Engineering Research Institute.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geophysics
Research Field:Seismology and Seismic Exploration
Objective Division:Environment
Objective Group:Environmental Policy, Legislation and Standards
Objective Field:Environmental Education and Awareness
Author:Paton, D (Professor Douglas Paton)
ID Code:40197
Year Published:2006
Web of Science® Times Cited:14
Deposited By:Psychology
Deposited On:2006-08-01
Last Modified:2011-10-03
Downloads:0

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