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Map readings are indicative data from their respective providers. If a value appears unusual, check whether the change persists and consult the provider.

For emergency decisions, rely on official information from the relevant authorities.

Radiation dose rate: Safecast Radnote. Wind direction and speed: Open-Meteo.

Map backgrounds: OpenStreetMap, JMA Himawari, and NASA GIBS.

Fukushima restricted zone: the web geometry is a high-resolution vector derived from the official Fukushima Prefecture evacuation-zone concept map (31 March 2025) and georeferenced through the JGD2011 ArcGIS evacuation-zone raster; narrow map-rendering seams between adjacent sections were closed and detached non-zone artifacts removed while mapped release exclusions were preserved; the latest status is checked against the METI evacuation-zone concept map (1 April 2026).

The map shows high-temperature locations detected by NASA FIRMS satellites. Some may be other heat sources; cloud cover and satellite timing can prevent detection.

Detections are not live. Click a location to see nearby observations and their acquisition times.

Wind direction and speed at roughly 10 m above ground, based on Open-Meteo weather models. These are estimates, not direct observations.

The map displays ambient radiation dose rates from available monitoring locations. The default unit is µSv/h.

Readings are indicative measurements from their providers. Consider sustained changes and consult official announcements.