Related by context. Frequent words. (Click for all words.) 77 volcanoes 69 active volcanoes 63 volcanic activity 63 volcano 56 lava 55 volcanic eruptions 53 volcanic 52 lava flows 51 volcanologists 51 seismic activity 50 eruptions 50 volcano erupts 50 dormant volcano 50 eruption 50 Merapi 49 lava flow 49 molten rock 49 volcano erupted 48 magma 48 erupting volcano 48 caldera 48 Indonesian volcano 47 Mount Merapi 47 volcanic eruption 47 Kilauea 46 Volcanic 46 molten lava 46 Surono 45 volcanism 45 Hawaii Volcanoes National 44 earthquakes 44 continental plates 44 Volcanology 44 glaciers 44 Mount Etna 43 volcano eruption 43 Seismologists 43 spewing ash 43 quakes 42 Mount Redoubt 42 Alaska Volcano Observatory 42 geysers 42 stalagmites 42 lava dome 42 volcano crater 42 ridges 41 MOUNT MERAPI Indonesia 41 tectonic plates 41 plate tectonics 41 tectonic 41 Geologists 41 rockfalls 41 seismicity 41 volcanologist 41 Mayon 41 Earth crust 40 Eyjafjallajokull 40 solar flares 40 earth crust 40 hydrothermal vents 40 Mayon volcano 40 seismically active 40 Redoubt 39 mountain ranges 39 asteroids 39 landforms 39 seismometers 39 subduction zone 39 hot springs 39 volcanic rock 39 sunspots 39 glacier 39 comets 39 volcanic ash 39 meteors 39 rock formations 38 ash plume 38 tectonic plate 38 temblors 38 aurora 38 Volcano 38 St. Helens 38 geologic 38 Mauna Loa 38 Eyjafjallajokull volcano 38 waterfalls 38 amphibian species 38 ash clouds 38 auroras 37 forest fires 37 coral reefs 37 mudflows 37 Phivolcs 37 Haleakala 37 floods landslides 37 aurora borealis 37 cosmic rays 37 basalt 37 comet 36 Geysers 36 vog