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Typhoon Dujuan Triggers 1.9 Million Evacuation in Tokyo

By Drooid · Sep 22, 2026, 2:51 PM UTC · How we work

Summary

Typhoon Dujuan Strikes

Typhoon Dujuan killed at least four people and left six missing in Greater Tokyo.
Oshima recorded 832 mm of rain in 48 hours.
Edogawa Ward set a September 24-hour rainfall record of 282.5 mm.
Authorities ordered 1.9 million people to evacuate, then lifted the order.
More than 45,000 households in Chiba lost power and dozens of homes were damaged.

Summary

Cabinet Office Activates Relief

Cabinet Office invoked Disaster Relief Act for 25 municipalities after heavy rains.
Police, firefighters and Self-Defense Forces deployed to search for survivors in Chiba and Kanagawa.
Japan Meteorological Agency issued Level-5 landslide warnings for Izu Islands and Level-4 for nearby prefectures.
Tokyo Electric Power Grid reported 42,260 households without electricity across four prefectures by late afternoon.
Chief forecaster Takuya Hosomi warned of imminent life-threatening landslides despite downgrades.

History

Historical Context

In October 2019 Typhoon Hagibis struck Japan, killing 139 people and leaving many households without power. The storm’s evacuation advisories, extensive damage, and disruption of the 2019 Rugby World Cup spurred nationwide upgrades to flood-control works and stricter building codes. Those reforms now shape the government’s response to later typhoons such as Dujuan.

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Typhoon Dujuan Strikes

Typhoon Dujuan killed at least four people and left six missing in Greater Tokyo.
Oshima recorded 832 mm of rain in 48 hours.
Edogawa Ward set a September 24-hour rainfall record of 282.5 mm.
Authorities ordered 1.9 million people to evacuate, then lifted the order.
More than 45,000 households in Chiba lost power and dozens of homes were damaged.

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