Related by context. Frequent words. (Click for all words.) 61 Eyjafjallajokull volcano 56 eruption 56 volcanic eruption 55 volcano 52 Icelandic volcano 52 ash plume 52 eruptions 51 ash clouds 51 volcanic eruptions 51 Grimsvotn volcano 51 Katla 50 spewing ash 50 Merapi 49 ash cloud 49 Mount Redoubt 49 volcano eruption 48 volcano erupted 48 Eyjafjallajokull glacier 47 Iceland volcano 47 volcanic activity 47 volcanic ash 46 Mount Merapi 45 Alaska Volcano Observatory 45 volcanoes 45 volcanologists 44 volcanic 44 Mayon volcano 44 ash 43 Mayon 43 active volcanoes 42 volcanic ash cloud 42 Mount Etna 42 lava dome 41 St. Helens 41 lava flows 41 erupting volcano 40 pyroclastic flows 40 sunspot 40 Iceland 40 volcanos 40 vog 40 lava flow 40 airspace closures 39 Kilauea 39 solar flares 39 Reykjavík 39 Icelandair 39 Volcanic 38 Gudmundsson 38 Indonesian volcano 38 erupting 38 Volcanic ash 38 Redoubt 38 Perseids 38 dormant volcano 38 volcano erupts 37 lava 37 Volcanology 37 CMEs 37 Stromboli 36 plume 36 glacial ice 36 gamma ray burst 36 Eruption 36 volcano crater 35 Surono 35 Hawaii Volcanoes National 35 aurora 35 volcanologist 35 Little Ice Age 35 magma 35 glacier 35 heavy snowfalls 35 snowfalls 35 sunspots 34 molten rock 34 Mauna Loa 34 Chaiten 34 molten lava 34 seismic activity 34 auroras 34 Pinatubo 34 avalanches 34 sulfur dioxide 34 quasars 34 Keflavik 34 geomagnetic field 33 Met Office 33 Sigur Rós 33 avalanche danger 33 MOUNT MERAPI Indonesia 33 belched 33 volcanic debris 33 fjord 33 volcanism 33 gamma ray bursts 33 RPKs 33 water vapor 33 Solidum 33 rockfalls 33 Kamchatka