Related by context. Frequent words. (Click for all words.) 81 plumes 62 ash plume 59 fireball 57 crater 56 ash cloud 54 contrail 53 mushroom cloud 53 ash 53 billowing 52 Plumes 52 lava flows 51 clouds 51 molten rock 51 ash clouds 51 billows 51 vapor 51 radioactive particles 50 billowing smoke 50 eruption 49 volcanic ash 49 lava flow 49 volcano 49 lava 49 acrid smoke 48 magma 48 comet 48 geyser 47 funnel cloud 47 volcanic 47 vapors 47 black smoke billowing 46 lava dome 46 smoke billowing 46 orange glow 46 nebula 46 water vapor 46 meteor 46 billow 46 gamma rays 46 Eyjafjallajokull volcano 45 blobs 45 radioactivity 45 volcanic eruption 45 contaminated groundwater 45 droplets 44 smoke 44 volcanic eruptions 44 contrails 44 gamma ray burst 44 volcanic activity 44 debris 43 westerly winds 43 troposphere 43 volcanoes 43 supermassive black hole 43 quasar 43 particulates 42 aerosols 42 Loop Current 42 soot 42 radioactive fallout 42 particulate matter 42 molten lava 42 Saturn rings 42 Saturn moon 42 smokestack 42 radionuclides 42 Thick black 42 eruptions 42 fumes 42 methane 42 dust particles 42 globs 42 chemical dispersants 42 concentrations 42 asbestos fibers 42 eastward 41 Enceladus 41 sediments 41 seafloor 41 billowed 41 corona 41 mist 41 supernovae 41 Pacific Ocean 41 particles 41 supernova 41 radioactive 41 ocean currents 41 sediment 41 hydrogen sulphide 41 sky 41 spewing 41 Cassini spacecraft 40 asteroid 40 caldera 40 ridge 40 algae bloom 40 volcanic ash cloud 40 embers 40 fireballs