# Flood Checker Kanto Japan — Protect Yourself from Flooding

> Flood hazard map and shelter viewer for Kanto, Japan. (iPhone/iPad app by Takafumi AMANO.)

- Source: https://appshunter.io/ios/app/flood-checker-kanto-japan/id791934462 (this page in markdown: same URL + `.md`)
- Developer: [Takafumi AMANO](https://appshunter.io/developer/581065340)
- Category: Lifestyle, Education
- Price: Free
- Age rating: 4+
- Requires: iOS 9.0 · 143 MB
- Languages: English, Japanese
- Released: 2014-01-24
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/flood-checker-kanto-japan/id791934462/reviews.md

## What is Flood Checker Kanto Japan?

This app is a viewer of flood hazard maps in Kanto, Japan which includes Ibaraki, Tochigi, Gumma, Saitama, Chiba, Tokyo and Kanagawa prefecture. The app has all shelter information in Japan and floods in Kanto. Therefore, it can search the nearest shelter and flood level at a current location or an arbitrary one.

■ How to Use

Please do not use this app without a rehearsal in time of a disaster, because the app was created for a desktop exercise. And be sure to check neighboring shelter information by a newsletter in your city.

The app shows an address and a flood level at a central location on a screen map. If the location has some floods, the app searches for the maximum flood level in the floods. Tap a shelter icon, it shows a balloon with shelter name and types. If you tap the balloon then, the app shows detailed information about the shelter. 

There is a toolbar under the screen. The toolbar has seven functions: Show current location, Change map type, Search shelters, Shelter layer switch, Floods layer switch, Move and App information.

1. Show current location
It moves the center of a screen map to a current location. 

2. Change map type
It changes a map type in order of a map, a hybrid, and an aerial photograph. 

3. Shelter layer switch
It turns on/off shelter icons. If the map scale is less than 1/250000, the icons are hidden automatically.

4. Search shelters
It searches the nearest shelter from a location that is the center of a screen map. And changes to detail check mode. You can check the nearest shelter and related floods in this mode. The finish is to tap the “Done” button.

5. Set target flood
You can choose a displaying flood. If you set the flood, the app shows the flood level of only chosen flood.

6. Move
It shows a local government list in Japan. If you select the government, the center of the screen map moves to a location of the selected government office. 

7. App Information
It is displayed a legend, notices, data sources and exemption from liability.

■ Data Sources

1. National Land Numerical Information, Flood Zones (2012, MLIT Japan)
2. National Land Numerical Information, Shelters (2012, MLIT Japan)

■ Notes

1. If you have found any English mistakes please let us know.
2. The app doesn’t provide updated information in the case of shelters being retrofitted or relocated.
3. The shortest route given may not always be accurate.
4. Flood zone data is accurate as of 2012.
5. Proper nouns are displayed in Japanese only.

■ Exemption from Liability

ASTI will not be held liable for anything that transpires as a result of using this information. No liability whatever will be accepted for any damage, injury or loss that may be suffered as a result of using the app.

## Key features

- Flood hazard map viewer
- Shelter information search
- Current location display
- Map type customization
- Flood and shelter layer toggles
- Nearest shelter search

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/flood-checker-kanto-japan/id791934462/reviews.md

### 1/5 — 住所で位置を調べられない

*2022-07-12, version 2.3.4*

住所で位置を調べられないのが不便です

### 2/5 — データが古い。。。

*2020-10-14, version 2.3.2*

デーハザードマップのデータが平成24年て古い気はします。最新じゃないと意味がないです。
自宅24年だと全然安全エリアですが、最新だとギリギリ安全。気持ちの持ち方全然違いますよ。

### 5/5 — 詳しく分かる

*2019-10-20, version 2.3.1*

地区で配布されたハザードマップより、ピンポイントで詳しく浸水の深さが分かります。
航空写真から追っていけるので、自分の居場所も見つけ易いです。
いざという時の、最寄りの避難所までの距離も表示され、とても参考になります。

### 1/5 — 開けません！

*2014-03-10, version 1.1.1*

ダウンロードしたけど、開けません！削除しました。

## Frequently asked questions about Flood Checker Kanto Japan

### What regions does Flood Checker Kanto Japan cover?

Flood Checker Kanto Japan covers Ibaraki, Tochigi, Gumma, Saitama, Chiba, Tokyo, and Kanagawa prefectures in Kanto, Japan. It also includes shelter information for all of Japan.

### Can Flood Checker Kanto Japan show my current location?

Yes, Flood Checker Kanto Japan has a function to show your current location on the screen map. This allows you to easily see flood information relevant to where you are.

### How accurate is the flood data in Flood Checker Kanto Japan?

The flood zone data used in Flood Checker Kanto Japan is accurate as of 2012, sourced from MLIT Japan. The app notes that the shortest route given may not always be accurate.

### Does Flood Checker Kanto Japan provide real-time flood updates?

The app does not provide updated information in the case of shelters being retrofitted or relocated. The flood zone data is from 2012, so it is not real-time.

### Is Flood Checker Kanto Japan suitable for actual emergencies?

The app was created for desktop exercises and users are advised not to use it without a rehearsal in time of a disaster. It's recommended to check neighboring shelter information via local newsletters.

### What languages are supported by Flood Checker Kanto Japan?

The app displays proper nouns in Japanese only. Users are encouraged to report any English mistakes found within the app.

### What is the age rating for Flood Checker Kanto Japan?

Flood Checker Kanto Japan has an age rating of 4+. It is available on iPhone, iPad, and iPod.

### When was Flood Checker Kanto Japan last updated?

Flood Checker Kanto Japan was last updated on May 31, 2021, with version 2.3.4.

## Version history (last 1 release)

### 2.3.4 — 2021-05-31

- The final version

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## More apps by Takafumi AMANO

- [Pace Ruler](https://appshunter.io/ios/app/pace-ruler/id588276050)
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- [Flood Checker Kansai Japan](https://appshunter.io/ios/app/flood-checker-kansai-japan/id741909947)

All apps by Takafumi AMANO: https://appshunter.io/developer/581065340

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*