Related by context. Frequent words. (Click for all words.) 53 lava flows 51 pyroclastic flows 50 Mount Redoubt 50 lava 49 ash plumes 48 volcanic gases 48 plumes 48 Alaska Mount Redoubt 47 ashfall 47 plume 47 Grimsvotn 47 explosive eruptions 46 volcano 46 volcanic activity 46 molten rock 46 spewed ash 45 eruptions 45 Kilauea Volcano 45 Sinabung 45 volcanic eruptions 45 volcanoes 45 volcanic earthquakes 45 volcano eruptions 44 smoke plumes 44 ejecta 44 volcanic plume 44 Kilauea volcano 44 atmospheric methane 44 volcanic 43 volcanism 43 Leonid meteor shower 43 Bulusan 43 eruption 43 ash 43 volcanically active 43 spewing lava 43 Leonids 43 Meridiani 43 lava flow 43 meteor 43 magma 43 volcano crater 43 Iceland Eyjafjallajokull volcano 43 active volcanos 43 plate tectonics 43 coronal mass ejection 42 Colaprete 42 aurora 42 meteoroids 42 volcanos 42 glaciers melt 42 water vapor 42 Geminids 42 Surono 42 Younger Dryas 42 dormant volcano 42 lava dome 42 Eyjafjallajökull 42 volcanic tremors 42 volcano erupting 42 vulcanologists 42 constellation Leo 41 Crab Nebula 41 landmasses 41 Volcanology 41 northeasterly direction 41 Tungurahua 41 cirrus clouds 41 volcano erupts 41 X ray emission 41 auroral 41 Volcanic eruptions 41 volcanic debris 41 Sulfur dioxide 41 Don Yeomans 41 Redoubt 41 Seismology Phivolcs 41 ash plume 41 Solidum 41 solar nebula 41 Hawaiian Volcano Observatory 41 Alaska Volcano Observatory 41 gamma ray burst 40 butter melts 40 auroras 40 mid latitudes 40 molten lava 40 basaltic 40 dust devils 40 Eruptions 40 Thick clouds 40 cumulus clouds 40 lightning flashes 40 mudflows 40 thunderheads 40 erupting volcano 40 Gamma ray bursts 40 meteoroid 40 Mount Kelud 40 aerosol particles 40 ocean ridges