YURAGI揺らぎ
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YURAGI揺らぎ

Unofficial interpretation — always follow JMA announcements. No earthquake predictions are provided.

Data: Japan Meteorological Agency (via P2P Quake API) · Map: GSI Tiles, Geospatial Information Authority of Japan

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Disclaimer

Please read this before relying on the information on this site.

Last updated November 2026

Not an official source

YURAGI is an independent, unofficial service. It is not operated by, affiliated with or endorsed by the Japan Meteorological Agency (JMA), the National Research Institute for Earth Science and Disaster Resilience (NIED), the Geospatial Information Authority of Japan, or any other government body.

Not a warning service

Do not rely on this site to protect your life. YURAGI does not issue earthquake, tsunami or volcanic forecasts or warnings, and it is not an Earthquake Early Warning system. Information may arrive late, be incomplete, or be unavailable during a disaster. Always follow official alerts and instructions from JMA, your local government and emergency services.

No predictions

Under Japan’s Meteorological Service Act, warnings of earthquakes, tsunamis and volcanic activity are issued only by JMA, and other forecasts require a government license. YURAGI only relays and explains information that JMA has already published, and adds general educational content. Nothing on this site is a prediction.

Accuracy

We work to keep the content accurate, but data may contain errors introduced in transmission, processing or translation. Plain-language explanations are deliberately simplified and do not replace the original information. Sample data in the Mt. Fuji section is labeled as such. If a translation differs from the official Japanese information, the official information prevails.

Preparedness guides

Our guides give general advice based on public guidance from Japanese authorities. Your situation may differ. On the spot, follow the instructions of the authorities and emergency staff.

External services and links

This site uses and links to services operated by others. We are not responsible for their content, availability or policies.

Limitation of liability

This site is provided “as is”, without warranty of any kind. To the extent permitted by law, the operators are not liable for any loss or damage arising from the use of, or the inability to use, this site or its information.

Changes

We may update this disclaimer. The date at the top of this page shows the current version.