Released on 21 March, 2005 |
Kugahara parts of hazard maps are shown in this corner from the publications of Tokyo Metropolitan Government and Keihin River Office of Ministry of Land, Infrastructure and Transport.
The Tokyo Metropolitan Government assumes the magnitude of quake and damages of the metroplitan areas in the case that an earthquake occurs on the boudary of plates along the upper face of Philippine Sea Plate, which is pointed out by Central Disaster Prevention Committee to be imminent.
The conditions of the earthquake are assumed as follows.The assumed damages shown below are based on the "direct beneath the ward area", which is assumed most disastrous among the four possible epicenters listed above.
1. Epicenter Direct beneath the ward area, direct beneath Tama area, direct beneath the boundary to Kanagawa Prefecture, and direct beneath the boundary to Saitama Prefecture. 2. Magnitude M7.2 3. Time Around 6:00 p.m. of a winter weekday 4. Climate conditions Clear weather, wind 6m/s (21.6km/h, 13.5mph)
Maps of risks
Descriptions
Keihin River Office of Ministry of Land, Infrastructure and Transportation, which administers Tamagawa River, publishes "assumed flood area maps". The maps are based on the simulation of the area and the depth of flood in the case of bank rip of Tamagawa River by heavy rainfall. It is known that Tamagawa River causes flood at the probability of roughly every two hundred years. A well-known flood in recent history is the one in 1910, when the flood water from Tamagawa River reached the Oimachi area.
Kugahara's map of assumed flood by Tamagawa
Lower than 0.5m (1.64ft) 0.5m - 1.0m (3.28ft) 1.0m - 2.0m (6.56ft) 2.0m - 5.0m (16.4ft) Over 5.0m (16.4ft) |
All the towns and "Chome" of Kugahara are fortunately out of assumed flood areas, except for the roads along the Nomigawa River, but it can be found that the flood water from Tamagawa River can reach Chidori 1-chome, which lies next to Kugahara in the south.
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