Related by context. Frequent words. (Click for all words.) 62 lava flows 60 lava 60 mudflows 58 Merapi 55 Mount Merapi 55 volcanic eruptions 54 volcanic activity 54 eruptions 54 lava flow 53 volcano 52 molten rock 52 eruption 52 volcanic debris 51 Volcanology 51 magma 50 lahar 50 Mayon volcano 50 volcanic 50 spewing ash 50 Mayon 50 meteors 50 mudflow 49 volcanos 49 volcanoes 49 lava dome 49 Indonesian volcano 49 solar flares 49 plume 49 molten lava 48 active volcanoes 48 volcanic eruption 48 volcano eruption 48 plumes 48 Surono 48 Phivolcs 48 landslides 48 volcanism 47 undersea quake 47 meteor shower 47 ash plume 47 ash 46 quakes 46 tsunamis 46 volcanologists 46 updrafts 46 meteor 46 mudslides 46 fireball 45 ash clouds 45 crater 45 polycyclic aromatic hydrocarbons 45 meteor showers 45 mud slides 45 caldera 45 vog 45 Tsunami waves 44 volcano erupted 44 earthquakes 44 comets 44 gamma ray burst 44 gamma rays 44 avalanches 44 auroras 44 asteroids 44 storm surges 44 methane 44 cyclones 43 supernovae 43 volcanic ash 43 Katla 43 comet 43 seismic activity 43 Landslides 43 rockfalls 43 temblors 43 mountainsides 43 flash floods 43 cosmic rays 42 superheated 42 flashfloods 42 Santa Anas 42 MOUNT MERAPI Indonesia 42 Volcanic 42 supernovas 42 mountain slopes 42 Typhoon Parma 42 ash cloud 42 tsunami waves 42 Eyjafjallajokull volcano 41 aurora borealis 41 asteroid 41 rocky planets 41 slopes 41 Seismologists 41 ultraviolet radiation 41 earth crust 41 gullies 41 aurora 41 gamma ray bursts 41 volcanic rock 41 distant galaxies