Areas, for which flood estimation area charts are already made, are marked yellow on the map.
 Areas that can be searched using the Web-Based Flood Simulation Search System are marked blue on the map. The areas are for reference purposes only and some parts of the marked areas may not be searchable. These areas that are not searchable will be unmarked when the map is magnified.

Areas, for which flood estimation area charts are already made, are marked yellow on the map.

Finding the estimated flood levee failure points ＜Instructions＞

There are three ways to find the estimated flood levee failure points.

※If, after finding a levee failure point, you need to search for another location, click here to see how to do it.


To search by location on the map

To search by location on the map
To search by location on the map

To search by latitude and longitude

To search by latitude and longitude
To search by latitude and longitude

To search by name of a place, etc.

To search by name of a place, etc.
To search by name of a place, etc.

※After finding a levee failure point, you need to search for another location, follow the instructions given in the image below.

破堤点を検索した後に別の地点を検索する場合
破堤点を検索した後に別の地点を検索する場合
破堤点を検索した後に別の地点を検索する場合

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＜Contact for inquiries regarding functions, operation, etc. of the system＞
Geographic Department, Geospatial Information Authority of Japan, Ministry of Land, Infrastructure, Transport and Tourism
Please use the inquiry form here if you have any questions