Related by context. Frequent words. (Click for all words.) 61 Augustine Volcano 57 lava flowing 56 Eyjafjallajökull volcano 56 Kilauea volcano 56 volcanic plume 56 volcanic 56 plume 55 tropopause 54 volcano 54 temperature inversions 54 spewed ash 54 fumaroles 54 volcano erupting 53 plumes 53 sky darkens 53 Mount Redoubt 53 brownish gray 52 Kilauea Volcano 52 Mount Asama 52 smoke plumes 52 volcanic quakes 52 spew ash 52 Martian dust 52 pyroclastic flow 52 cumulus clouds 51 erupting volcanoes 51 billowing clouds 51 volcanoes 51 pyroclastic 51 ash plumes 51 Indonesian volcano erupts 50 volcanic peaks 50 Eyjafjallajökull 50 Thick clouds 50 cirrus clouds 50 ash spewed 50 Chaiten volcano 50 upper troposphere 50 spewing volcano 50 Anatahan 50 Grimsvotn 50 Prevailing winds 50 Huge plumes 50 volcanically active 50 underwater volcanoes 49 temperature inversion 49 spewing lava 49 volcanic gases 49 lava 49 polar vortex 49 Alaska Mount Redoubt 49 Lassen Peak 49 ash spewing 49 spewing ash 49 clouds 48 venting steam 48 Northerly winds 48 hazy skies 48 ash plume 48 eruption 48 Mount Kelud 48 mud volcanoes 48 Volcano erupts 48 explosive eruptions 48 Iceland Eyjafjallajokull volcano 48 Volcanic eruptions 48 Mount Spurr 48 Iceland Volcano 48 Vulcanologists 48 greenish brown 48 greenish gray 48 granite cliffs 48 Mount Bromo 48 lava flows 48 eruptions 48 molten lava 48 Iceland Eyjafjoell volcano 48 billowing 48 inversion layer 47 steam vents 47 dormant volcano 47 ash 47 X ray emission 47 Kelud 47 undersea volcanoes 47 Migrating birds 47 constellation Virgo 47 blindingly bright 47 Saturn moon Enceladus 47 volcano Mount Merapi 47 hydrothermal vent 47 mesosphere 47 photosphere 47 billowing cloud 47 volcanic eruptions 47 active volcanos 47 cirrus 47 sunspot 47 volcanic vents 46 constellation Gemini 46 tropospheric