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Japan's earthquake and tsunami warning system explained

Source(s): Time Magazine Inc.
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Japan has the most advanced earthquake early-warning system in the world, reports Lucy Birmingham for Time. 'It took just seconds for a seismometer located on land, closest to the epicenter, to detect enough signals to determine an alert was necessary. The alert was automatically issued at 2:46:48 via locations such as factories, schools, TV networks, radio stations and mobile phones.'

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Hazards Earthquake
Themes Early warning Information management
Country and region Japan
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