Related by context. Frequent words. (Click for all words.) 77 volcanos 74 active volcanoes 74 volcano 72 volcanic activity 71 volcanic 69 volcanic eruptions 64 lava flows 64 eruptions 63 lava 61 volcanism 60 volcanic eruption 59 caldera 59 magma 59 Volcanic 57 plate tectonics 57 glaciers 56 molten rock 56 eruption 56 seismic activity 56 lava flow 54 volcano erupted 54 geysers 53 earthquakes 53 molten lava 52 mountain ranges 52 Kilauea 52 tectonic 52 Earth crust 51 hot springs 51 geologic 51 quakes 50 earth crust 50 Merapi 50 glacier 50 crater 49 Volcanology 49 volcanic rock 48 basalt 48 erupting volcano 48 ridges 48 Volcano 48 seismometers 48 tectonic plates 48 oceans 47 Seismologists 47 coral reefs 47 tsunamis 47 lava dome 47 asteroids 47 Geologists 47 hydrothermal 47 comets 47 tectonic plate 47 Enceladus 47 rock formations 47 volcano eruption 47 craters 46 water vapor 46 Mauna Loa 46 volcanic rocks 46 Volcanoes 46 tropics 46 St. Helens 46 moons 45 equatorial 45 solar flares 45 geologically 45 Krakatoa 45 San Andreas Fault 45 Saturn rings 45 Eyjafjallajokull 45 comet 44 permafrost 44 sunspots 44 cosmic rays 44 temblors 44 observatories 44 Himalayas 44 geological 44 methane 44 Phivolcs 44 lichens 44 oceanic 44 icebergs 44 auroras 44 fossils 43 vortices 43 seafloor 43 plume 43 mountain 43 Redoubt 43 seismic waves 43 volcanic ash 43 highlands 43 sediments 43 Pacific Ocean 43 Andes Mountains 43 aerosols 43 Antarctica 43 waterfalls 43 ash clouds