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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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YURAGI
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Privacy

In short: YURAGI does not ask who you are, uses no cookies or tracking, and keeps your settings on your own device.

Last updated November 2026

What we do not collect

  • No accounts, names, email addresses or phone numbers
  • No cookies, and no advertising or analytics trackers
  • No location data — we never ask for your location
  • The numbers you enter in the stockpile calculator stay in your browser and are never sent anywhere

What is stored on your device

Your browser’s local storage keeps four settings: your chosen language, theme, weather area and notification preference. So the site still opens without a connection, your browser also keeps a copy of its pages and texts (not anything about you). Notifications, if you turn them on, are created on your device — no notification server is involved. None of this leaves your device, and you can delete it at any time by clearing this site’s data in your browser.

Services your browser connects to

To display this page, your browser loads resources directly from the services below. As with any website, they receive technical information such as your IP address and browser type, and handle it under their own privacy policies.

P2P Quake API

api.p2pquake.net — earthquake data

Japan Meteorological Agency

www.jma.go.jp — weather forecasts and observations

YURAGI news service

/api/news — relays official JMA and FDMA bulletins; stores no personal data

Geospatial Information Authority of Japan

cyberjapandata.gsi.go.jp — map tiles

Google Fonts

fonts.googleapis.com — typefaces

unpkg

unpkg.com — map display library

In a future version we plan to host fonts and libraries ourselves, so that fewer third parties are involved.

If you contact us

The contact form runs on Google Forms and does not ask for your name or email address: only what you write is sent. Reports on GitHub are public. We use messages only to correct and improve YURAGI, so please leave out personal information you do not want to share.

Your rights

Because we hold no personal information about you, there is nothing for us to disclose, correct or delete. If this changes — for example, if we add notifications — we will update this policy beforehand and ask for your consent where required, in line with Japan’s Act on the Protection of Personal Information.

Changes

We will update this page if anything changes. The date at the top shows the current version.