aa lava andesite ash
basalt block bomb bomb collection
caldera cinder cone columnar basalt
dacite dike dome
effusive eruption eruption cloud
fault fissure eruption fumarole
gas geyser
hornito
ignimbrite
lahar lapilli landslide lava lava dome => dome lava flow lava fountain lava lake lava tube
maar magma mud volcano
obsidian
pahoehoe lava pahoehoe lava gallery Pele's hair Pele's tears phreatic eruption pillow lava Plinian eruption plume => eruption cloud pit crater pumice pyroclastic flow
rhyolite rift zone
scoria skylight shield volcano shield volcano gallery spatter stratovolcano Strombolian eruption
tephra tree mold tsunami tumulus
vent volcanic gas => gas volcanic landslide => landslide Vulcanian eruption
