Minor Flood ● Closed

Japan: Flood in Japan

Event time: Sep 2, 2026 01:00 UTC Last updated: Sep 23, 2026 Japan

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

Green Flood in Japan from: 02 Sep 2026 01 to: 11 Sep 2026 01.

Measurements

Coordinates	41.2928, 141.1835
Region	Japan
Gdacs Alert Level	Green
Gdacs Score	1
Severity Text	Magnitude 0

Official source

Alert data from GDACS (European Commission Joint Research Centre & United Nations OCHA)

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by GDACS (European Commission / United Nations).

View original report

This event as JSON · API and licence

Source updated 38 days ago (Sep 11, 2026 01:00 UTC) · we last heard from GDACS (European Commission / United Nations) 4 days ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

What has changed

Status changed from Monitoring to Active — Sep 12, 07:52 UTC by GDACS (European Commission / United Nations)

Figures published in the first minutes of an event are preliminary. A change here is the agency refining its own estimate, not a correction to this page.

Official authorities in Japan

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

Japan Meteorological Agency

More for Japan →

What to do

Follow the instructions issued by GDACS (European Commission / United Nations) and your local emergency services. The guidance below is background.

Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.

Open Flood Safety Guide →

Nearby & related events

M4.0 Earthquake — Hokkaido, Japan Region Minor Earthquake Japan active via EMSC 2 hr ago Wind — South of Kuril islands, Russian Federation Moderate Severe Storm Russia active via WMO 2 days ago Wind — South of Kuril islands, Russian Federation Moderate Severe Storm Russia active via WMO 3 days ago M4.4 Earthquake — 100 km ESE of Takahagi, Japan Minor Earthquake Japan monitoring via USGS 4 days ago M4.4 Earthquake — Near East Coast Of Honshu, Japan Minor Earthquake Japan monitoring via EMSC 5 days ago

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.