Terrestrial phenomena disasters/Volcanoes/Volcanic smoke and volcanic ejecta distribution

The following are 4 case studies

(Case Study No.   3) Ash Fallout Distribution and Forest Damage from Mount Usu Eruption in 2000
(Case Study No. 10) Volcanic Eruption of a Submarine Volcano near Minami- iwojima
(Case Study No. 12) Volcanic Eruption of Miyakejima Island in 1983
(Case Study No. 25) Mt. Usu Eruption in 2000
Meteorological disasters Terrestrial phenomena disasters Disasters of human origin
Rainfall Strong winds Agriculture and forest damage Earthquakes

Volcanoes

 Land regions
Light rain Wind toppled trees Drought Urban structures Pyroclastic flows, etc. Land subsidence
River floods Cold weather damage Slope disasters Volcanic smoke and volcanic ejecta distribution Collapse
Slope disasters Insect damage Ground disasters Agriculture and forestry industry damage
Forest fires