Volcanicity Effects on Human Activities

- Some volcanic features eg craters form barriers hindering transport and communication
- Volcanic eruption emits poisonous gases e.g sulphur which is poisonous
- Volcanic lava damages property eg houses
- Leewards slopes of volcanic mounts are dry hence discourage agriculture
- Recent lava flow form immature soils unsuitable for farming
- Volcanic eruption in ocean bed may cause tsunamis which kill people and destroy property