Urbanization and dam failure are the two human-caused factors in the listed flood causes. Events like regional precipitation, snowmelt, and volcanic eruption are natural, while changes in land use and infrastructure failure due to human activities can lead to floods.
To identify the human-caused flooding events from the provided list, focus on the consequences of human activities. The following causes are anthropogenic, or human-caused:
- Urbanization often contributes to flooding due to increased impermeable surfaces which prevent water absorption into the ground.
- Dam failure can result in catastrophic floods, typically due to structural failure or poor maintenance.
Regional precipitation, snowmelt, local heavy precipitation, and volcanic eruption are natural events, whereas urbanization and dam failure are directly linked to human activities.
Urbanization and dam failure are the human-caused flooding events on this list.