THE thickness of a lava flow depends, in general, on three factors: the viscosity of the flowing lava; the angle of slope of the surface over which the lava is flowing; the local topography ...

low-level lava spattering from the north vent culminated in a small lava flow observed at about 9 :15 a.m. at Halema ‘uma ‘u. At around 9 :55 a.m., low-level lava fountaining started with more ...