Emergency Warning System

Emergency Warnings are issued to alert people to the significant likelihood of catastrophes in association with natural phenomena of extraordinary magnitude.

[1] JMA issues various warnings to alert people to possible catastrophes caused by extraordinary natural phenomena such as heavy rain, earthquakes, tsunami and storm surges.

[1] Emergency Warnings are intended for extraordinary phenomena such as the major tsunami caused by the 2011 Great East Japan Earthquake by which 18,000 people were killed or left missing, the 1959 storm surge in Ise Bay caused by Typhoon Vera, by which more than 5,000 people were killed or left missing, and the 2011 heavy rain caused by Typhoon Talas, by which around 100 people were killed or left missing.

It is important to take action early wherever possible with reference to relevant weather bulletins, Advisories and Warnings, which are updated in response to the latest phenomenon observations or predictions.

[1] The criteria for Emergency Warning issuance were determined in response to the views of local governments in charge of disaster management for their own areas.