Web Version Disaster Prevention Map / Hazard Map

You can check the seismic intensity distribution within the city, liquefaction risk, and disaster prevention-related facilities.

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You can check flood inundation assumption areas, inland water inundation assumption areas, sediment disaster warning areas, evacuation centers, and evacuation sites.

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Please agree to the following terms before using this service.

• The hazard map is a reference document based on simulation results derived from certain conditions. Therefore, it may differ from actual situations.
• The map information provided by this service does not encompass all information related to the Inagi Disaster Prevention Map and Hazard Map.
• The base map (Geospatial Information Authority tiles) may differ from the current situation.
• The elevation display uses the elevation API from the Geospatial Information Authority of Japan.
• This service has been tested to work with the following browsers.

　Google Chrome, Microsoft Edge, Firefox

• Inagi City shall not be liable for any direct or indirect loss or damage arising from the use of this service.
• This service may change all or part of its content without prior notice. Additionally, there may be temporary interruptions to all or part of the service.
• The copyright for the disaster prevention content of this map belongs to Inagi City. Additionally, editing, processing, reproduction of this map, commercial use, use that violates various laws and regulations, and use for purposes, means, or methods that infringe on the rights of others are prohibited.

Disaster Prevention Map

This includes the "Seismic Intensity Distribution Map" showing the distribution of seismic intensities for the "Tama Eastern Direct Earthquake" and the "Liquefaction Hazard Map" indicating the risk of liquefaction.

Hazard Map (Flood and Sediment Disaster)

• The flood inundation assumption areas for the Tama River, Misawa River, inland water inundation assumption areas, and special warning zones for sediment disasters are included.
• The inundation assumption areas represent the results of simulations showing the regions where flooding would occur and the expected depth of flooding if heavy rain falls within the respective river basins.
• Depending on the rainfall pattern, changes in land use, and the development status of rivers and sewerage systems, flooding may occur outside the expected inundation areas, or the depth of flooding may differ.
• The duration of flooding indicates the time from when the water level reaches 0.5m or more due to flooding, until the water recedes to below 0.5m.
• The special sediment disaster warning areas show on the map the sediment disaster warning areas (Yellow Zone), special sediment disaster warning areas (Red Zone), and designated evacuation shelters during disasters.

[Tama River Flood Inundation Assumption Area]

This shows the inundation situation in the event of flooding caused by the assumed maximum scale rainfall (total rainfall of 588mm over 48 hours in the Tama River basin) resulting in the Tama River overflowing.

[Misawa River Basin Flood Inundation Assumption Area]

This shows the inundation situation in the event of flooding caused by the assumed maximum scale rainfall (maximum hourly rainfall of 152mm and total rainfall of 690mm over 24 hours in the Misawa River basin) resulting in the Misawa River overflowing.

[Inland Flooding Assumption Area]

This shows the flooding situation in the event of inland flooding caused by heavy rain with the assumed maximum scale rainfall (maximum hourly rainfall of 153mm, total 24-hour rainfall of 690mm), exceeding the drainage capacity of existing sewerage drainage facilities and waterways.

[Landslide Disaster (Special) Warning Area]

This shows the "Landslide Disaster Warning Area (Yellow Zone)" and the "Landslide Disaster Special Warning Area (Red Zone)" for cliff collapses and debris flows.