Preparation for typhoons and heavy rains

• Make sure there are no cliffs near your home.Earth and sand disaster hazard map）
• Make sure that there is no risk of flooding near your home.(Flood Hazard Map)
• Write the evacuation route from your home to the evacuation center on the map.

• Check multiple evacuation routes so that you can evacuate to two or more evacuation centers.
• Avoid roads that may be closed due to flooding due to heavy rain or landslides.

• Prepare items to be taken out during evacuation on a daily basis so that you can take them out immediately.
• Let's keep the items to the minimum necessary. (Radio, drinking water, flashlights, pharmaceuticals, baby supplies, etc.)

• In the event of an emergency, cherish your relationship with your neighbors on a daily basis so that you can help each other.
• Create a system that can cooperate in the community in order to protect the safety of people who are difficult to respond flexibly, such as evacuation behavior in the event of a disaster due to disability or elderly people.
• Let's talk about the cooperation system in the event of a disaster with nearby social welfare facilities in the community on a daily basis.
• disaster drill, evacuation drill, and lectures will be held to acquire knowledge about disaster prevention.
• When evacuation warning comes out, call out to the neighborhood and take the initiative in evacuating.

We provide disaster prevention information to registered e-mails on PCs and mobile phones.
You can register from the link below.
Registration of Yokohama City Disaster Prevention Information Email

Please check the information frequently on the Japan Meteorological Agency website and the Yokohama City website.

• Japan Meteorological Agency website (weather information) (outside site)
• Yokohama City Disaster Prevention Information

Be especially careful if you receive earth and sand disaster warning information.
Click here for earth and sand disaster alert information (Japan Meteorological Agency homepage) (outside site)

A phenomenon of a landslide

• Pebbles fall from the cliff.
• New spring water is generated on the slope.
• The spring water is muddy.
• There is a crack on the slope.

If there is any precursor such as the above, take evacuation action as soon as possible.

In addition, there may be no time from the occurrence of a precursory phenomenon to the occurrence of a landslide, or there may be no precursory phenomenon and a landslide may occur.
If you feel danger, take early evacuation actions.

When evacuating, wear comfortable clothes and try to act with two or more people.
If the surroundings are dark and the flooding has already begun, do not force yourself to go out and stay in a high place where you can secure safety, such as the second floor of your home.

• At the time of evacuation, avoid roads along rivers and cliffs and underground roads.
• Heavy rain may cause gutters and manholes on the road to come off, so be careful not to approach them.

Following the damage of Typhoon No. 19 in 2019, the Cabinet Office examined measures against storm and flood damage, and the revised "Disaster Countermeasures Basic Law" was enforced on May 20, 2021, and the "Name of evacuation information" at the alert level was changed. I will let you know.

Cabinet Office Disaster Prevention Information Homepage (outside site)

In Yokohama City, when communicating evacuation warning, etc. to citizens, the following means are used.

• Disaster prevention information e-mail
  We provide disaster prevention information to registered e-mails on PCs and mobile phones. You can register from the link below.
  Registration of Yokohama City Disaster Prevention Information Email

• Provision of information via "Emergency Bulletin Mail"
  Information will be delivered to mobile phones that support emergency bulletin emails in the target area. Please check the following to see if your mobile phone is compatible.
  About emergency bulletin mail
• Provision of information through data broadcasting of TV Kanagawa
• Information provision via "Homepage" and "Twitter"
  We distribute evacuation warning and others through the Yokohama City Crisis Management Office website and Twitter.
  About the transmission of disaster-related information by Twitter

• Provision of information via television, radio, etc.

• Information provision by public relations vehicles, etc.
  We carry out call by public information car or fire engine.

As for sediment-related disasters,voluntary evacuation should be immediately started without waiting for evacuation warning if a different precursor is found.

Based on the lessons learned from Typhoon No. 18 in October 2014, Yokohama City decided to extract cliffs that could cause significant damage to houses in the event of a landslide, and to issue a "evacuation warning" with the announcement of "Earthquake Disaster Warning Information" to the surrounding area.
It does not mean that the area where evacuation warning has not been issued is safe. In the event of a heavy rain or typhoon, pay attention to disaster prevention information and take evacuation actions as soon as possible at your own discretion.

◇List of target areas (list of text format and map)
◇Target area (ArcGIS Online) (external site)
The target area map may be difficult to browse, such as when a large number of access is concentrated.
If you cannot browse, please contact the ward office General Affairs Division listed below for details of the area.

◇Selection criteria for the target area
◆In this survey, the field survey of cliffs existing in sediment-related disaster warning areas in all wards of the city has been completed.
Immediate review of areas subject to evacuation warning will be carried out at any time depending on the status of measures taken at cliffs.
[End year of survey of each ward]
Surveyed in FY2014: Nishi Ward, Minami Ward, Isogo Ward
Surveyed in FY2015: Hodogaya Ward, Kanazawa Ward, Naka Ward, Konan Ward, Midori Ward, Tsuzuki Ward  
Surveyed in FY2016: Kohoku Ward, Sakae Ward, Tsurumi Ward, Kanagawa Ward, Asahi Ward, Totsuka Ward
Surveyed in FY2017: Aoba Ward, Izumi Ward, Seya Ward

• In weather that requires caution, such as heavy rain, storm, or heavy wind and snow, please refrain from going out unnecessarily because it is dangerous.
• About events hosted by city hall or ward office, it is canceled in principle at the time of heavy rain, storm, heavy wind and snow.
• In the event of heavy rain, storm, or heavy wind and snow, disaster response work will be performed, and regular work will be performed with a limited number of personnel. Therefore, at the ward office window, the waiting time will be longer, there will be office work that cannot be processed on the same day, and may cause inconvenience to citizens. Please be aware in advance.

Link: About cliff disaster prevention (City of Yokohama, Housing and Architecture Bureau Building Disaster Prevention Section)