Related by context. Frequent words. (Click for all words.) 74 volcanoes 69 volcanos 65 volcano 64 volcanic activity 59 volcanic 57 dormant volcano 57 Merapi 56 lava flows 56 lava 56 seismic activity 55 volcanologists 55 extinct volcano 53 volcanic eruptions 52 volcano erupts 52 caldera 52 Mount Sinabung 52 volcano erupted 52 eruptions 51 Mayon volcano 50 seismically active 50 Volcanic 50 lava flow 50 spewing ash 50 volcanic eruption 49 Kilauea 49 hot springs 49 Mount Merapi 49 Volcanology 48 volcanism 48 pyroclastic flows 48 eruption 48 magma 48 molten rock 48 Hawaii Volcanoes National 47 subduction zones 47 quakes 47 Bulusan 47 erupting volcano 47 molten lava 47 volcano crater 47 Mount Redoubt 47 temblors 46 glaciers 46 Indonesian volcano 46 earthquakes 46 subduction zone 45 Seismologists 45 lava dome 45 amphibian species 45 crater 45 geysers 45 coral islands 44 earth crust 44 tectonic plates 44 hydrothermal vents 44 glacier 44 seismometers 44 equatorial 44 Surono 44 Mayon 44 Earth crust 43 MOUNT MERAPI Indonesia 43 #.# magnitude temblor 43 mountain ranges 43 seismicity 43 Mount Etna 43 biologically diverse 43 continental plates 43 sunspot 43 archipelago 43 Eyjafjallajokull 43 moon Titan 43 Great Rift Valley 43 tectonic 43 barrier reef 43 volcanic rock 42 meteor showers 42 Phivolcs 42 Geysers 42 coral reefs 42 tallest mountain 42 Pinatubo 42 hydrothermal 42 waterfalls 42 seafloor 42 Grimsvotn 42 tectonic plate 41 rockfalls 41 inhabited islands 41 undersea earthquake 41 Haleakala 41 aftershocks 41 geologic 41 volcano eruption 41 solar flares 41 Geologists 41 asteroids 41 seamounts 41 Eruption 41 Alaska Volcano Observatory 41 mammal species