Seijo, Setagaya, Tokyo: flood, tsunami, quake and landslide risk

成城せいじょう・世田谷区・東京都

Seijo, Setagaya. Flood: under 0.5 m. Quake: 61.1% chance of strong shaking in 30 years.

Flood, assumed maximum

under 0.5 m

Tsunami

Not coloured on this tile

Landslide

Debris flow: no tile finer than zoom 9. Steep slope: no tile finer than zoom 16. Landslide: no tile finer than zoom 9.

Strong quake in 30 years

61.1%, 30-year chance of intensity 6-lower or higher

Ground

Volcanic ash terrace. Shakes 1.72× the bedrock.

Nearby stations

成城学園前 Sta. (310 m), 喜多見 Sta. (1080 m), 祖師ヶ谷大蔵 Sta. (1140 m)

These figures are read at the centre of Seijo. Hazards change from street to street, so check the exact address on the live map.

Map: Geospatial Information Authority of Japan. The pin marks the centre of the town.

What to check before you rent or buy

• Not coloured means the Geospatial Information Authority tile has no flood colour here. Some prefecture-managed rivers are missing from that dataset.
• No national liquefaction tile. Check the municipal hazard map before you offer. This screen does not paint liquefaction.
• Straight-line distance, not the walk.

Learn more: how to read a Japanese hazard map, earthquake intensity and building codes and what your agent must tell you about flood risk.

More in Setagaya

• All towns in Setagaya
• Soshigaya 祖師谷
• Kinuta 砧
• Kitami 喜多見
• Kamisoshigaya 上祖師谷
• Tokyo

Sources

Geospatial Information Authority of Japan: Pale map, town names, flood, tsunami, and landslide caution tiles. J-SHIS: Y2024 average case, 30-year chance of intensity 6-lower or higher. HeartRails: Town name readings, and nearest stations as a straight-line distance. Town centres: Ministry of Land, Infrastructure, Transport and Tourism. Data fetched 2026-10-11.

This repackages public Japanese government hazard data for personal screening. It is not insurance, legal, or engineering advice. Confirm with municipal maps and your agent’s important-matters explanation before purchase.