Table 2 Roof collapse mitigation actions
Ash & snow fall depth (farmer estimate) | Ashfall depth (Naranjo et al. 1993) | Distance from vent | Details |
|---|---|---|---|
150 cm | 90 cm | 36 km | Roof collapsed on wooden constructed homestead, despite initial cleaning attempts |
100-120 cm | 35 cm | 42 km | Regular cleaning required to prevent collapse on wooden construction homestead |
80-100 cm | 40 cm | 73 km | Wooden constructed homestead & farm building roofs collapsed under weight of ash and snow - not cleared due to evacuation |
50-60 cm | 15 cm | 54 km | No structural damage to wooden homestead. Regular roof cleaning due to fears of collapse. |