Title: Development,application and suggestion on earthquake early warning system
Abstract: Starting from related concepts,the authors pointed out differences between earthquake prediction,forecasting and early warning,furthermore,earthquake early warning is prompting alarm made after an earthquake instead of any prediction or forecasting made before.Theoretical principle of earthquake early warning is based on wave velocity difference,typical earthquake early warning systems such as Mexico City's Seismic Alarm System(SAS),Japan's Earthquake Early Warning System(EEW)and Urgent Earthquake Detection and Alarm System(UrEDAS),California's Earthquake Alarm System(ElarmS),Taiwan's Earthquake Quick Reporting Sys-tem and so on,have been widely applied in earthquake prevention and disaster reduction,as well as for significant projects(such as dams,nuclear power plants).Despite of all,earthquake early warning system is still in its early stage,certain imperfections are unavoid-able such as false warning and delayed warning,whereas potential benefits remains in practical use and it has already effectively solved some problems.After the devastating 5·12 Wenchuan Earthquake,China is ready to set up similar earthquake early warning system.Based on its features and practical national situation,this paper has probed into construction issues from certain aspects including fundamental faulting research,seismic monitoring network as well as information publishing.
Publication Year: 2009
Publication Date: 2009-01-01
Language: en
Type: article
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