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Legend

Seismic Susceptibility Map

Seismic Susceptibility Map

Distribution of the seismic intensity of the Great East Japan Earthquake (M9.0).
upper 6
lower 6
upper 5
lower 5
Local hazard levels

Local hazard levels

The map illustrates the relative degree of building damage (equal to destruction) caused by an earthquake with the seismic strength specified in the local seismic susceptibility map, taking into account the impacts of tremors and ground liquefaction.
35 ～ 7%
23 ～ 5%
10 ～ 3%
Zones expected to be flooded from tsunamis

Zones expected to be flooded from tsunamis

The maximum inundation depths are calculated by superimposing the tsunami inundation areas from three earthquakes: the Chishima Trench earthquake, the Japan Trench earthquake, and the Great East Japan Earthquake.
10.0m ～ 20.0m
5.0m ～ 10.0m
3.0m ～ 5.0m
1.0m ～ 3.0m
0.5m ～ 1.0m
0.3m ～ 0.5m
0.0m ～ 0.3m
Escape routes

Main escape routes

The map displays the primary walking routes from each location to emergency evacuation sites and shelters.

Escape routes by car

The map shows roads suitable for automobile evacuation of persons requiring assistance during a disaster.
Main escape routes
Escape routes by car
Zones expected to be submerged

Zones expected to be submerged

The flood depths presented on this map were calculated based on the assumption that the flooding is caused by a maximum expected rainfall event. The map illustrates the expected area of flooding in the case of the Naruse, Yoshida, Takagi, Shin, Tanaka, and Tsuruta Rivers being inundated.
10.0m ～ 20.0m
5.0m ～ 10.0m
3.0m ～ 5.0m
0.5m ～ 3.0m
0.0m ～ 0.5m
Zones expected to be flooded, e.g., homes destroyed

Zones expected to be flooded, e.g., homes destroyed(Deluge)

This is a region where houses are at high risk of collapsing if water from rivers flows in with great force due to broken levees during floods. Therefore, it is essential to evacuate the area early. In the event of a disaster, please follow the evacuation guidelines and move to a secure location as quickly as possible.

Zones expected to be flooded, e.g., homes destroyed(Bank erosion)

This is a high-risk area for house collapse due to riverbank erosion during a flood. It is recommended to evacuate early and follow evacuation guidelines to reach a safe location as soon as possible.
Deluge
Bank erosion
Zones expected to be flooded, e.g., homes destroyed

Landslide disaster special alert zones

In areas where the possibility of landslides causing damage to buildings or serious harm to life or limb exists, specific development activities require permission, and structural regulations for buildings are enforced.

Alert zones

This region is prone to landslides, which can pose a threat to the safety of life and limbs. The concerned authorities will ensure that the public is informed about the potential hazards, and a warning and evacuation system will be established to ensure everyone’s safety.

Mudslides

A landslide is a natural phenomenon in which the earth and rocks produced by the collapse of a slope or a mountain stream flow down together.

Steep slope failures

This is a geological event where land with a gradient of 30 degrees or more collapses.
MudslidesSpecial alert zones(Red zone)
Alert zones(Yellow zone)
Steep slope failuresSpecial alert zones(Red zone)
Alert zones(Yellow zone)
Areas of inundation from internal flooding

Areas of inundation from internal flooding

Areas flooded by the July 2022 torrential rains and the depths of inundation are shown.
0.5m ～ 3.0m
0.0m ～ 0.5m
Areas of inundation from internal flooding

Zones expected to be flooded from reservoirs

This shows the depth of inundation when the reservoir in question is breached by an earthquake or heavy rainfall.
5.0m
3.0m ～ 5.0m
2.0m ～ 3.0m
1.0m ～ 2.0m
0.5m ～ 1.0m
0.2m ～ 0.5m
0.2m
Reach Time

Reach Time

This shows the time that the floodwaters reach the site in the event of a breach.
Storm surge damage zones during the 1979 Typhoon 20
Areas of inundation
evacuation sites/Facility

Designated emergency evacuation sites

This is a place for emergency evacuation to protect lives from the dangers of disasters.

Designated shelters

These are temporary shelters for disaster victims where they can stay for a limited time and live as evacuees.

Designated shelters(With emergency supply and equipment warehouse on the premises)

These facilities have a warehouse for storing materials and equipment, where disaster victims can stay for a certain time and live as evacuees.

Tsunami evacuation building

Emergency refuge, such as buildings and towers, with space for sheltering above the expected base water level.
Designated emergency evacuation sites
Designated shelters
Designated shelters(With emergency supply and equipment warehouse on the premises)
Tsunami evacuation building
Designated emergency evacuation sites/Designated shelters
Designated shelters(With emergency supply and equipment warehouse on the premises)
Municipal wireless for disasters
Water level stations
Water level indicators
Quake-proof water tanks
Home power generators