Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake

A retrospective case study was conducted for the March 11, 2011, earthquake that occurred off the east Pacific coast of Tohoku, Japan, with reference to the Sumatra-Andaman earthquake and Indian Ocean tsunami on December 26, 2004. The regularities of the temporal variations of the number of deaths r...

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Bibliographic Details
Main Authors: Zhongliang Wu, Yingchun Li, Xiaolin Yang
Format: Article
Language:English
Published: Istituto Nazionale di Geofisica e Vulcanologia (INGV) 2011-06-01
Series:Annals of Geophysics
Subjects:
Online Access:http://www.annalsofgeophysics.eu/index.php/annals/article/view/5169
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author Zhongliang Wu
Yingchun Li
Xiaolin Yang
author_facet Zhongliang Wu
Yingchun Li
Xiaolin Yang
author_sort Zhongliang Wu
collection DOAJ
description A retrospective case study was conducted for the March 11, 2011, earthquake that occurred off the east Pacific coast of Tohoku, Japan, with reference to the Sumatra-Andaman earthquake and Indian Ocean tsunami on December 26, 2004. The regularities of the temporal variations of the number of deaths reported through the Internet is used to make an early stage quick-and-rough estimate to assist in the emergency decision making, and to continue the revision of the estimate as new data comes in. The quick-and-rough estimate of the final fatalities that was obtained on the second day after the earthquake is shown to agree with the final reported fatalities to within an order of magnitude. This also has an added advantage over other estimation models, in that the estimates can be updated with new data as they become available.
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spelling doaj.art-78ece014e1e94550a356bc40737364962022-12-21T19:44:35ZengIstituto Nazionale di Geofisica e Vulcanologia (INGV)Annals of Geophysics1593-52132037-416X2011-06-0154610.4401/ag-5169Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquakeZhongliang WuYingchun LiXiaolin YangA retrospective case study was conducted for the March 11, 2011, earthquake that occurred off the east Pacific coast of Tohoku, Japan, with reference to the Sumatra-Andaman earthquake and Indian Ocean tsunami on December 26, 2004. The regularities of the temporal variations of the number of deaths reported through the Internet is used to make an early stage quick-and-rough estimate to assist in the emergency decision making, and to continue the revision of the estimate as new data comes in. The quick-and-rough estimate of the final fatalities that was obtained on the second day after the earthquake is shown to agree with the final reported fatalities to within an order of magnitude. This also has an added advantage over other estimation models, in that the estimates can be updated with new data as they become available.http://www.annalsofgeophysics.eu/index.php/annals/article/view/5169Casualties, Earthquake-generated tsunami, 2011 Tohoku earthquake, 2004 Sumatra-Andaman earthquake, Internet
spellingShingle Zhongliang Wu
Yingchun Li
Xiaolin Yang
Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
Annals of Geophysics
Casualties, Earthquake-generated tsunami, 2011 Tohoku earthquake, 2004 Sumatra-Andaman earthquake, Internet
title Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
title_full Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
title_fullStr Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
title_full_unstemmed Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
title_short Using Internet reports for early estimates of the final death toll of earthquake-generated tsunami: the March 11, 2011, Tohoku, Japan, earthquake
title_sort using internet reports for early estimates of the final death toll of earthquake generated tsunami the march 11 2011 tohoku japan earthquake
topic Casualties, Earthquake-generated tsunami, 2011 Tohoku earthquake, 2004 Sumatra-Andaman earthquake, Internet
url http://www.annalsofgeophysics.eu/index.php/annals/article/view/5169
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