Update : 2021-12-1
Make Preparation to Protect Yourself and Collect Information
Use the timeline as a rule of thumb when, who and what to do, in response to the water level of rivers and the weather forecast.
Timeline (Guideline of Evacuation Actions)
Risk of flood
○Water level information (guide)
|City’s Response||Citizens' Actions|
|・Typhoon forecast (as needed)
・Press conference of the Meteorological Agency
|・Establish the disaster alert headquarters.||
Make preparations in advance.Read the hazard map, and collect information from TV or a radio.
Stock food enough for at least three days.
Prepare survival kit for disaster.
○Water level requiring flood fighting corps to watch
|・Operate the pomp station.
・Patrol rounds to see the water level and flooding.
|●Heavy rainfall warning
○Water level to be on alert for flooding
|・Establish the emergency management headquarters.
・Make decisions whether to open evacuation centers or not.
|○Water level to consider evacuation||
ALERT LEVEL 3
Prepare to evacuate.
Those living in the specified areas, who need time in evacuation, should evacuate to a safe place.
|●Heavy rainfall special warning *
○Water level of impending flood
ALERT LEVEL 4
All people in the specified areas should evacuate to a safe place immediately.
Flood occurs.* The announcement standard is subject to change. Follow the latest information.
Information to be sent in the following means:Emergency broadcast system
Website of Soka City
Soka City safety information e-mail
Soka City safety information facebook
L alert (“d” button of NHK)
Emergency alert e-mail
"Vertical evacuation” is effective in flood, to a higher place, such as the upper floor of your house.
See the separate pages for action guidelines in times of disaster, bearing in mind the prevention of infection of the novel coronavirus.
Must-know New Information
Toll-free Telephone Service to Listen to Emergency Broadcast
Also usable from cell phones, car telephones and PHS
Dial this number when you cannot catch the emergency broadcast message.
You can listen to the latest broadcast.
* The former number is also usable, with fee. Tel.(048) 922-9911
* The message is delivered in Soka City safety information e-mail and Twitter at the same time.
Flood information of rivers will be sent out in emergency alert e-mail (Area mail)
When rivers managed by the national government has risk of flooding, causing inundation in Soka City, information will be sent to cellphones and smartphones automatically.
* Some models may not have the function of receiving this information.
Observation Stations about which Information Is Sent
|River||Observation station (Location)|
|Tone River||Yattajima (Isehara City)
Kurihashi (Kuki City)
|Edo River||Noda (Noda City)|
|Naka River||Yoshikawa (Yoshikawa City)|
|Ayase River||Yako (Soka City)|
|Ara River||Kumagaya (Kumagaya City)
Iwabuchi Suimon (Kami) (Kita City)
Rivers flowing in Soka city
Kiki Kanri-ka (Crisis Control Section)