Flood and Landslide Hazard
Map＆Information
KATSUYAMA CITY
June 2010
USEFUL INFORMATION FOR EVACUATING #１: WEATHER INFORMATION
Weather information is information that includes weather forecasts and evacuation
information that issued from the meteorological agency and spread to the public
through the press.
In the instance of heavy rain, it is essential to gather information through not only
televised news and radio, but also by utilizing the internet to gather information
specifically related to your region.
THE DIFFERENT TYPES・INTENSITIES OF RAIN
1. Relatively strong rainfall (Steady rainfall)
10~20mm in 1 hour (Approximately 1/3~3/4 inches)
The rain that hits the ground splashes at your feet.
If this type of rain continues for a long period of time
there could be danger.
2. Strong Rainfall (Getting soaked)
WATCHES AND WARNINGS
おおあめちゅういほう
大雨注意報
Heavy Rainfall Watch
こうずいちゅういほう
洪水注意報
Flood Watch
Amount of Rainfall:
50mm+ in 3 hours (Flat areas)
40mm+ in 1 hour (Other areas)
20~30mm in 1 hour (Approximately 3/4~ 1 1/5
inches)
おおあめけいほう
Despite using an umbrella, getting drenched.
Overflowing water from roadside gutters and small
rivers. Small scale landslides may take place.
3. Intensely strong rainfall (Comparable to pouring water from a
bucket)
30~50mm in 1 hour (Approximately 1 1/5~ 2 inches)
Overflowing water from sewer pipes and roads turn
into rivers. Increased risk of large scale landslides.
Those located in dangerous areas must start
preparations to evacuate.
4. Extremely strong rainfall (Comparable to a waterfall)
50~80mm in 1 hour (Approximately 2~3 inches)
Comparable to a sheet of water, resulting in low
visibility.
High risk of landslides containing large rocks and
mud, which could result in many damages.
5. Violently strong rainfall (Strong enough rain to induce
fear)
大雨警報
Heavy Rainfall Warning
こうずいけいほう
洪水警報
Flood Warning
Amount of Rainfall:
80mm+ in 3 hours (Flat areas)
60mm+ in 1 hour (Other areas)
きろくてきたんじかん
記録的短時間
おおあめ
大雨情報
Record Breaking Amount of
Rainfall in a Short Period of Time
Amount of Rainfall:
80mm+ in 1 hour
More than 80mm (3 inches) in 1 hour
Extremely high potential for massive disasters to take
place. Extreme caution is needed.
Standards set in June 2010,
Fukui Local Meteorological
Office
For the latest information please check:
Fukui Local Meteorological Office (Japanese Page only)
HTTP://WWW.JMA-NET.GO.JP/FUKUI
ページ 1
USEFUL INFORMATION FOR EVACUATING #２: WATER LEVEL OF RIVERS
The prefectural government is responsible for the identification of rivers and areas that are at risk of flooding. By setting
gauges that measure water levels, they set guidelines for the carrying out of preventative measures and evacuations. The
water level information of rivers is available on the internet and in the instance of heavy rain and the possibility of flooding
is predicted, this information should be periodically checked.
UNDERSTANDING THE DIFFERENT WATER LEVELS OF KUZURYU RIVER
THE DIFFERENT TYPES OF RAIN AND THE WATE R LEVEL OF RIVERS
For the latest information on Fukui Prefecture’s Rainfall/Rivers/Erosion, please visit
Fukui Prefectural Rivers and Erosion Comprehensive Information Website (Japanese Page only)
HTTP://WWW.AME.PREF.FUKUI.JP/
ページ 2
USEFUL INFORMATION FOR EVACUATING #3: LANDSLIDE INFORMATION
ど し ゃ さ いが い けいかい じょうほう
土砂 災害 警戒 情報 ・LANDSLIDE WATCH INFORMATION
DIFFERENT TYPES OF LANDSLIDES
There are three types of Landslides known as “dirt and rock landslides・土石流”, “land slides・地すべり” and “land
collapse・がけ崩れ”
どせきりゅう
1. 土石流・Landslides composed of dirt and rock
This type of landslide usually takes place in valleys or slanted surfaces (slopes, hills.) They take place
instantly and are often mixed with dirt, rock, sand and the water from the heavy rainfall. Due to the fast
speed, they often cause major destruction to a wide area.
Please be especially cautious in the following situations:
1. Rumbling sounds from the mountain
2. Rivers that are muddy with trees or wood mixed in.
3. Despite continuous rainfall, the water level of the river is dropping.
4. The smell of rotting dirt
じ
2. 地すべり・Sliding of Land
This type of landslide usually takes place in areas where there are gradual slopes. They usually take place
very slowly with clay-like mud that can be found in the soil. A large area of land usually shifts at once, which
can result in massive damages to homes and roads.
Please be especially cautious in the following situations:
1. Water found in swamps and wells are muddy. Cracks in the ground.
2. Water flowing out from slopes and hills.
3. Cracks in houses or walls.
4. Slanting of houses, walls, trees or power lines.
くず
３．がけ崩れ・Land Collapse
This type of landslide takes place when rain water soaks into the ground and softens the land, causing the
land the suddenly crumble. Since the land crumbles suddenly, it provides people no chance to evacuate,
causing deadly results to human life and property.
Please be especially cautious in the following situations:
1. Visible cracks or fissures in high grounds (mountains, cliffs, etc)
2. Boiling water that is flowing out from high grounds.
3. Small rocks which come rolling down from higher grounds.
4. Sounds of tree roots snapping.
Some areas are designated as “Special Landslide Disaster Zones”, because they are located in areas with
higher risks of landslides. For more information on Special Landslide Disaster Zones located in F ukui
Prefecture, please visit…
Landslide Disaster Watch Area Management System Website (Japanese Page only)
ページ 3
HTTP://SABOGIS.PREF.FUKUI.JP
USEFUL INFORMATION FOR EVACUATING #4: EVACUATION INFORMATION
DIFFERENT TERMINOLOG Y USED IN EVACUATION INFORMATION
ひ な ん かんこく
ひ な ん じ ゅ ん び じょうほう
ひ な ん し
じ
避難準備情報
避難勧告
避難指示
Prepare to Evacuate
Evacuation Advisory
Evacuation Order
Usually issued before the
Evacuation Advisory, this
provides extra time for those
(the elderly, families with young
children, or individuals with
special needs) to start
preparations to evacuate.
Issued when there is a high
possibility of danger to human
lives, or there is a request to
start evacuation.
Issued when there is an
extremely high possibility of
danger to human lives, or when
it is necessary to evacuate
immediately.
DISPERSING OF EVACUATION INFORMATIO N
In the instance evacuation is necessary, evacuation information will be spread through the following ways:

Televised News

Radio,

Internet

Katsuyama City Mail Service (Please see below)

Katsuyama City Emergency Vehicle Loudspeakers


There may be instances in which the sound from the loudspeakers will not be audible. Please check other
sources (TV, Radio, Internet) if necessary.
Local government agencies and organizations.
THINGS TO REMEMBER WHEN EVACUATING
1. Please evacuate in clothing
that is comfortable and bring
only the absolute minimum.
2. Avoid rivers, large bodies
of water and dangerous
areas.
3. Please assist children
and elderly in evacuating.
4. If you are unable to safely
evacuate, please move to
higher grounds and wait to be
rescued.
Katsuyama City offers a service which notifies subscribers of watches and warnings that have bee n issued
by the meteorological office and Katsuyama City. For more information please visit…
Katsuyama City Mail Service Website (Site and Service are in Japanese only)
HTTP://KATSUYAMA.MAIL-DPT.JP/
ページ 4
For more information, please visit…
Ministry of Internal Affairs and Communications’ Fire and Disaster Management Agency (FDMA)
HTTP://WWW.FDMA.GO.JP/EN/ ENGLISH PAGE AVAILABLE)
National Research Institute for Earth Science and Disaster Prevention (NIED)
HTTP://WWW.BOSAI.GO.JP/ (ENGLISH PAGE AVAILABLE)
Katsuyama City’s General Affairs Department
HTTP://WWW.CITY.KATSUYAMA.FUKUI.JP (JAPANESE ONLY)
ページ 5