Related by context. Frequent words. (Click for all words.) 67 lava 66 lava flows 64 volcano 62 volcanic activity 59 eruption 56 Kilauea 56 volcanoes 56 magma 55 eruptions 55 crater 55 caldera 54 molten rock 54 volcano crater 54 volcanic 53 volcanism 53 Mayon volcano 53 volcanic eruptions 52 glacier 51 lava dome 51 Merapi 51 Mount Redoubt 50 ridge 50 mudflows 50 lahar 50 volcanic rock 50 active volcanoes 50 rockfalls 49 molten lava 49 plume 49 erupting volcano 49 volcanos 48 volcanic eruption 48 seismic activity 48 Phivolcs 47 glaciers 47 Volcanology 47 Hawaii Volcanoes National 47 Mauna Loa 47 ash plume 47 treeline 47 escarpment 47 Haleakala 47 Volcanic 47 mudflow 46 Mayon 46 Indonesian volcano 46 stalagmites 46 Mount Merapi 45 fissure 45 ridges 45 outcropping 45 Redoubt 45 volcano erupted 45 downslope 45 landforms 44 meteor shower 44 canyon 44 slope 44 rockslides 44 fjord 44 glaciation 44 upslope 44 landslip 44 streambed 44 rockslide 43 gullies 43 slopes 43 glacial ice 43 basalt 43 sunspot 43 volcano eruption 43 Alaska Volcano Observatory 43 pumice 43 water vapor 42 boulders 42 rock formations 42 rockfall 42 Crater Lake 42 volcanic debris 42 sand dune 42 calcite 42 volcanologist 42 sedimentary rock 42 Eruption 42 steep slope 41 San Andreas Fault 41 St. Helens 41 geysers 41 Surono 41 geologic 41 mountain slopes 41 outcrop 41 meltwater 41 stalactites 41 spewing ash 41 Volcano 41 chaparral 41 geyser 41 aurora 41 volcanic ash 41 dunes