Related by context. Frequent words. (Click for all words.) 57 tectonic 56 tectonic plates 55 tectonic plate 54 lithosphere 53 subduction zone 52 landmasses 52 faultline 51 Cascadia subduction zone 51 tectonics 51 earth crust 50 subduction zones 50 oceanic crust 50 plate tectonics 50 volcanically active 50 Earth crust 49 Valles Marineris 49 ocean ridges 49 continental crust 49 crustal 49 supercontinent 49 tectonic shifts 48 seismically active regions 48 subduction 48 magma chamber 48 Tibetan Plateau 48 Cascadia Subduction Zone 48 latitudinal 47 volcanoes 47 seismic activity 47 Oort Cloud 47 seismic waves 47 Chicxulub 47 escarpments 46 outer crust 46 lava tubes 46 San Andreas Fault 46 deep gorges 46 continental drift 46 continental plates 46 geologically active 45 oscillations 45 faultlines 45 equatorial 45 igneous rock 45 volcanism 45 tectonic plates collide 45 glaciers melt 45 Kilauea Volcano 44 magmatic 44 ecliptic 44 stalactite 44 volcanic islands 44 earthquakes 44 volcanic 44 magnetic reconnection 44 hydrothermal activity 44 graben 44 deforming 44 infrasound 44 seamount 44 spacetime 44 magmas 44 Brownian motion 44 active volcanoes 43 volcanic activity 43 icecap 43 longitudes 43 caldera 43 equator 43 cryosphere 43 quakes 43 liminal 43 pyroclastic flow 43 glacial melting 43 ITCZ 43 glacial melt 43 volcanic gases 43 observable universe 43 Eurasian continent 43 eddies 43 vortex 43 centrifugal forces 43 singularities 43 thawing permafrost 43 splays 43 instabilities 43 deformation 42 Namib Desert 42 landforms 42 Great Rift Valley 42 glacial retreat 42 river deltas 42 gyre 42 basalts 42 magma 42 discontinuities 42 torus 42 Kuiper belt 42 landmass 42 igneous 42 gravitational tug