Anatomy of a volcanoOnline version Anatomy of a volcano by Nerea Fontecha 1 ASH 2 LAVA FLOW 3 LAVA DOME 4 LAVA 5 VENT 6 TEPHRA 7 CALDERA 8 LAHAR 9 FISSURE 10 DIKE 11 MAGMA 12 MAGMA CHAMBER