Kawanuma

Kawanuma formed part of the Aizu basin, where villages and fields depended on rivers flowing across the lowlands. In 1611 a major earthquake transformed this watery landscape. River blockage and slope failures created the Yamazaki New Lake, flooding land in both Yama and Kawanuma districts. Farmed ground could become open water within a single disaster.

The Gamō lords organised labour to remove the obstruction and drain the inundated land. Historical accounts describe thousands of workers taking part, but the first attempts failed to remove the new lake. The disruption therefore extended beyond ruined buildings to the loss of fields and altered drainage. Kawanuma's early seventeenth-century history included the practical limits of a domain government's response to environmental change: organised labour could be mobilised quickly, while restoring the rivers and recovering cultivated land proved much harder.