# Chiba Prefecture flooding and weather damage

> Developing situation record from CLSTR: https://clstr.news/situations/chiba-prefecture-flooding-and-weather-damage
> Updated: 2026-10-25T09:57:00.000Z. Sources: 3. Developments: 2.

Heavy rainfall and typhoons have caused widespread destruction across Chiba Prefecture, Japan. In late September, Typhoon Dujuan triggered flooding near Lake Inbanuma, leading to the loss of approximately 100,000 Nishikigoi ornamental carp and most of a local eel population. One fish farm owner reported damages totaling roughly 1 billion yen following embankment failures.

Subsequent reports indicate that extreme precipitation from August and September, including Typhoon 25, resulted in landslides and infrastructure damage throughout the region. In Sodegaura, the Tokyo German Village experienced seven landslides and severe path erosion. Experts have noted that Chiba’s coastal reclaimed land and local depressions exacerbated the flooding, prompting calls for improved urban water retention systems.

## Timeline

### 2026-10-25: Chiba heavy rain damage: flooding and landslides impact region

Heavy rains and typhoons caused flooding and landslides in Chiba, Japan, damaging infrastructure and local businesses like Tokyo German Village, while experts urge improved urban water management.

3 sources. https://clstr.news/cluster/chiba-heavy-rain-damage-flooding-and-landslides-impact-region

### 2026-09-28: Chiba flooding sweeps away 100,000 ornamental carp

Typhoon Dujuan caused severe flooding in Chiba, Japan, sweeping away nearly 100,000 Nishikigoi carp and causing massive losses to local eel farms and aquaculture facilities.

2 sources. https://clstr.news/cluster/chiba-flooding-sweeps-away-100000-ornamental-carp

---
Cite as: Chiba Prefecture flooding and weather damage. CLSTR, https://clstr.news/situations/chiba-prefecture-flooding-and-weather-damage