Related by context. Frequent words. (Click for all words.) 49 subduction zone 47 subduction zones 47 magma chamber 46 subduction 46 Hayward Fault 46 crustal 46 graben 45 Diablo Canyon 45 thermocline 45 tectonic plate 45 caldera 44 lithosphere 44 Earth crust 44 temperature gradient 44 seismic activity 44 Brownian motion 43 Cascadia subduction zone 43 excitons 43 interfacial 43 deformation 43 San Onofre Nuclear Generating 43 seismologists 43 seafloor 42 geologists 42 geophysicists 42 seismic waves 42 San Andreas Fault 42 seamount 42 updip 42 lava dome 42 areal extent 42 earth crust 42 crystal lattice 42 spacetime 42 ocean ridges 41 picosecond 41 torus 41 graphene sheets 41 methane hydrate 41 thermosphere 41 oceanic crust 41 seismically active 41 tectonic plates 41 tectonics 41 geologic 41 Seismologists 40 wellbore 40 electromagnets 40 magnetization 40 methane hydrates 40 numerical simulations 40 crust 40 Hawaiian Volcano Observatory 40 laterally 40 meteoroids 40 electron beams 40 downdip 40 gravitational lensing 40 GPa 40 observable universe 40 rock outcrop 40 atoms 39 anisotropic 39 seismic 39 quakes 39 talus 39 plate tectonics 39 tectonic plates collide 39 atomic nuclei 39 magnetosphere 39 meteoroid 39 magnetar 39 sunspot cycle 39 permafrost 39 explosive eruptions 39 Japan Meteorological Agency 39 horizontal lateral 39 continental crust 38 subsurface 38 slope 38 tectonic 38 seismicity 38 seismology 38 GNS Science 38 heliosphere 38 Hamaoka nuclear 38 radioactive decay 38 marine sediments 38 high temperature superconductivity 38 quantum mechanical 38 bridge pilings 38 ejecta 38 MARSIS 38 Greenland glaciers 38 magnetic fields 38 Onagawa nuclear 38 Itokawa 38 antiprotons 38 icecap 38 sedimentary basins 38 faultline