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Japan:Tsunami alerts to be revised

Tuesday, January 31, 2012

Laaska News Jan 31, 2012

Japan’s Meteorological Agency has come up with new guidelines for issuing tsunami alerts after an earthquake.

Following the massive earthquake that hit northeastern Japan on March 11, 2011, the emergency alerts issued to the public underestimated the possible tsunami height.

A panel of tsunami and disaster prevention experts compiled the revised guidelines at its final meeting in Tokyo on Tuesday.

The new guidelines call for the Meteorological Agency to simplify the predicted heights of tsunamis from the current 8 levels to 5. The new levels measured in meters are 1, 3, 5, 10 and over 10 meters.

If an earthquake’s strength is not immediately known, the guidelines call for weather officials to issue a maximum alert without a numerical tsunami height prediction.

Such alerts will describe the possible tsunami either as giant or high, and urge people to immediately take shelter or evacuate.

The Meteorological Agency intends to put the new guidelines in place by the end of the year.


Laaska News.