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津波警報
Wikipedia definition
1. Tsunami warning systemA Tsunami warning system (TWS) is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage. It consists of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of coastal areas. There are two distinct types of tsunami warning systems: international and regional. When operating, seismic alerts are used to instigate the watches and warnings.
Read “Tsunami warning system” on English Wikipedia
Read “津波警報システム” on Japanese Wikipedia
Read “Tsunami warning system” on DBpedia

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