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(Click for frequent words.) 75 tectonic plate 72 continental plates 66 subduction zone 64 crustal plates 62 Earth crust 61 tectonic plates collide 60 tectonic 59 earth crust 58 Earth tectonic plates 56 shifting tectonic plates 56 Eurasian Plate 56 subduction zones 55 Eurasian tectonic plates 55 Tectonic plates 55 lithosphere 54 subduction 54 plate tectonics 54 crustal plate 54 crustal 54 tectonic boundary 53 subducted 53 Nazca plate 53 tectonics 53 subducting 53 seismic activity 53 colliding tectonic plates 52 Cascadia subduction zone 52 tectonic plate dives 52 Sunda Trench 52 Eurasian plates 52 oceanic plates 52 faultline 51 continental crust 51 Nazca Plate 50 tectonic movements 50 tectonic fault 50 tectonic plates slabs 50 earthquakes 50 seismically active zones 50 subduction fault 49 magma 49 landmasses 49 San Andreas Fault 49 seismically active regions 48 Cascadia fault 48 quakes 48 compressional 48 tectonic plate slides 48 Cascadia Subduction Zone 48 volcanoes 48 intraplate 47 tectonically 47 seismogenic 47 Sunda megathrust 47 ocean ridges 47 aseismic 47 oceanic trenches 47 subducting plate 47 seismic waves 47 oceanic crust 47 continental drift 46 geologic faults 46 sedimentary layers 46 Alpine Fault 46 tectonic plate boundary 46 tectonic plate boundaries 46 megathrust quake 46 volcanic arcs 46 tectonic plates converge 46 thrust faulting 46 calderas 45 grabens 45 megathrust earthquake 45 tectonically active 45 deformation 45 megathrust 45 Nazca tectonic plate 45 episodic tremor 45 Subduction Zone 45 craton 45 Nankai Trough 45 tectonic stresses 45 tectonic faults 45 Plate tectonics 44 Sunda trench 44 subducted beneath 44 Manila Trench 44 supercontinents 44 active volcanoes 44 asthenosphere 44 temblors 44 supervolcano 44 Subduction zone 44 seismic upheavals 44 crustal deformation 44 ocean basins 44 Megathrusts occur 44 Tectonic Plate 44 rifting 43 undersea volcanoes 43 seismic faultlines 43 Sumatra Andaman 43 megaquakes 43 molten rock 43 oceanic lithosphere 43 Enriquillo Plantain Garden 43 San Jacinto Fault 42 volcanic activity 42 faultlines 42 gyres 42 magma chambers 42 tectonic rift 42 tectonic plate movements 42 subduction zone earthquakes 42 Yellowstone caldera 42 molten magma 42 outer crust 42 Anatolian fault 42 Yellowstone Caldera 42 Laurasia 42 Tharsis Rise 42 North Anatolian Fault 42 crustal rocks 42 supervolcanoes 41 volcanos 41 volcanic islands 41 seismically active 41 anticlines 41 Subduction zones 41 magnetopause 41 tectonic shifts 41 Sumatra Andaman earthquake 41 seismologists 41 tectonic activity 41 megathrust earthquakes 41 oceanic circulation 41 Kerry Sieh 41 Tharsis 41 Gondwana supercontinent 41 tectonic plate shifts 41 moon gravitational pull 41 Io volcanoes 41 fissions 41 mantle plumes 41 lowermost mantle 41 Burma microplate 41 volcanism 41 seismic 41 shakings 41 Shoreline Fault 41 supercontinent 41 atomic nuclei 41 caldera 41 post perovskite 41 flood basalts 41 Gondwanaland 41 spacetime 41 crust 40 microearthquakes 40 gravitational pulls 40 lava eruptions 40 volcanoes erupt 40 mantle convection 40 lithospheric 40 Cumbre Vieja 40 seafloor 40 active volcanos 40 earth tremors 40 Deccan Traps 40 galactic clusters 40 Kate Hutton seismologist 40 undersea earthquakes 40 glacial cycles 40 Calaveras Fault 40 magnetic reconnection 40 magmas 40 Enzo Boschi 40 lava domes 40 deforming 40 ancient supercontinent 39 wrinkle ridges 39 cratons 39 brittle deformation 39 Fire horseshoe shaped 39 isostatic 39 toppling dominoes 39 Eurasian continent 39 El Nino Southern Oscillation 39 icesheet 39 turbidites 39 geologically unstable 39 Shatsky Rise 39 Rossby waves 39 circum Pacific seismic 39 Elsinore fault 39 hydrosphere 39 magma chamber 39 Called subduction zones 39 planets orbits 39 tectonic earthquakes 39 lava dome 39 galactic disk 39 magma erupts 39 mantle lithosphere 39 lava flows 39 seismograms 39 volcanic magma 39 quakes measuring 39 Enriquillo Garden 39 Seismologists 39 vortices 39 volcano magma 39 Sunda plate 39 Roberts Mountain Thrust 39 Hayward Fault 39 El Niños 39 magmatism 39 volcanically active 39 subduction earthquakes 39 Teton Fault 39 tropical cyclones 39 volcanic 38 meteorite impacts 38 Tibetan Plateau 38 seismology 38 metasediment 38 metamorphic rocks 38 polar icecap 38 lavas 38 supercontinent Pangea 38 brittle ductile 38 silicon atoms 38 mid latitudes 38 large oceanic plateaus 38 gravitational attraction 38 Beroza 38 Madden Julian Oscillation 38 electron orbits 38 geologically active 38 ocean currents 38 quantum particle 38 glacial melting 38 igneous rock 38 Puu Oo 38 geologic 38 tsunamis 38 sedimentary rock 38 Cascadia subduction 38 geodynamics 38 seismogenic zone 38 Mount Manaro 38 phonons 38 fault ruptures 38 undersea earthquake 38 sinistral 38 sub glacial lakes 38 monsoon trough 38 seismometers 38 Kilauea Volcano 38 Wysession 38 hydrothermal activity 38 Siberian Traps 38 igneous rocks 38 uppermost layer 38 anticyclones 38 igneous intrusion 38 North Pacific Gyre 38 Mark Zoback 37 Newport Inglewood 37 asteroid impacts 37 volcanoes encircling 37 parallel universes 37 thermohaline circulation 37 antimatter particles 37 Kelvin Helmholtz 37 rotational axis 37 Seismic Zone 37 Earthquake magnitudes 37 cyclonic circulation 37 seismographs 37 sulfur atoms 37 ridges 37 glaciations 37 atmospheric circulation 37 upwelling 37 gravitational interaction 37 volcanic eruptions 37 Syrtis Major 37 Nili Fossae 37 Molucca Sea 37 pyroclastics 37 magmatic 37 planetary orbits 37 glaciers retreated 37 Pavonis Mons 37 foreshocks 37 La Niñas 37 Mud volcanoes 37 civilizations 37 subduction earthquake 37 cobalt atom 37 climatic variations 37 USArray 37 ruptures 37 Amundsen Sea 37 Agulhas Current 37 landslides 37 glaciers 37 immovable object 37 seismically active arc 37 discontinuous 37 orbits Saturn 37 mainshock 37 tremors 37 mud volcanoes 37 discontinuities 37 Amundsen Sea Embayment 37 hydrogen atoms 37 Rockfalls 37 precess 37 planetesimals 37 earths crust 37 substorms 37 Liquefaction 37 landforms 37 altered ultramafic rocks 37 steering currents 36 attorney Butch McConn 36 Mauna Loa volcano 36 Polar Vortex 36 Geological Survey seismologist 36 Mariana Arc 36 Elysium Planitia 36 seismometer 36 Martian volcanoes 36 Volcanic eruptions 36 Sumatra island triggering 36 Enriquillo fault 36 telluric 36 magnetic fields 36 fissure eruption 36 spawns disasters 36 meltwater 36 mud volcano 36 gravitational tugs 36 Brian Baptie 36 Schellart 36 tensional 36 supercontinent Pangaea 36 varying magnitudes 36 volcanoes erupting 36 Geologists 36 tropopause 36 merging galaxies 36 volcanic cone 36 Younger Dryas 36 cobalt atoms 36 Ken Gledhill 36 magnetic flux 36 harmonic tremors 36 megadroughts 36 magnetospheric 36 Palaeozoic sedimentary 36 Antarctic Circumpolar Current 36 Shallow earthquakes 36 Kilauea caldera 36 severe cyclonic storm 36 cryovolcanism 36 seismologically active 36 seismically 36 isostatic rebound 36 biogeochemical cycles 36 basilar membrane 36 latitudinal 36 subparallel 36 cinder cones 36 Jupiter moon Io 36 geologically 36 outlet glaciers 36 Gravitational waves 36 Longmen Shan fault 36 Laguna Salada fault 36 Iapetus 36 seismic tremors 36 Antarctic Ice 36 geophysicists 36 subhorizontal 36 basaltic lava 36 earthquakes volcanic eruptions 36 inherently unstable 36 subduction zone earthquake 36 lava flowed 36 Moho 36 geoeconomic 36 permafrost 36 megathrust quakes 36 electrons behave 36 cyclonic circulations 36 Garzione 36 atoms 36 Cumbre Vieja volcano 36 seismically active fault 36 arid Atacama Desert 36 erupt explosively 36 frictional heating 36 magnetic dipole 36 glacial ice 36 Zoback 36 tremours 36 magnetic polarity 35 Manaro 35 cataclysmic 35 deformations 35 matter antimatter asymmetry 35 WASP #b 35 seismicity 35 magnetosphere 35 scarps 35 basaltic rocks 35 Pu'u O'o 35 superheavy elements 35 Platonic solids 35 oceanic currents 35 Sakurajima 35 glacial meltwater 35 andesitic rocks 35 tide gauges 35 southern supercontinent 35 spheroidal 35 warmings 35 tropical glaciers 35 subglacial lakes 35 sandstone intervals 35 volcanic rock 35 asteroids 35 El Ninos 35 underwater volcanoes 35 Seismological Society 35 rockslides 35 deep convective clouds 35 sedimentary basins 35 El Nino warming 35 stratigraphic sequence 35 undersea quakes 35 ejecta blanket 35 sediments deposited 35 fissures 35 Earth magnetosphere 35 stromatolites 35 moons orbiting 35 explosive volcanism 35 compass needle 35 aftershocks 35 intraplate earthquakes 35 Hosgri Fault 35 terranes 35 Indian Ocean Dipole 35 magnetotail 35 Neogene 35 epicentred 35 anastomosing 35 volcanic plumes 35 west Enriquillo Fault 35 zircons 35 John Bellini geophysicist 35 glacial retreat 35 Wdowinski 35 Tintina Fault 35 University Lamont Doherty 35 Wilkins Ice Shelf 35 stratovolcano 35 proton antiproton 35 KT boundary 35 Kelut 35 moonquakes 35 seismographic stations 35 Tahoe Fault 35 Saturnian moons 35 superfluids 35 #.# magnitude earthquake 35 Dr Brian Baptie 35 graphene sheet 35 superstorms 35 Sinadinovski 35 heliopause 35 magma ocean 35 subsurface geologic 35 Pacific Decadal Oscillation PDO 35 planet magnetosphere 35 interstellar boundary 35 instabilities 35 tectonic plate slipping 35 nucleon 35 GJ#b 35 tonalite 35 interferometric synthetic aperture radar 35 iceberg calving 35 Crustal 35 seamounts 35 ferromagnet 35 convection currents 35 Kermadec Arc 35 magma cools 35 USGS seismologist 35 cyclonic storm 35 rockfalls 35 Southern Oscillation 35 rifted 35 Hot Jupiters 35 crustal movements 35 ignimbrite 35 escarpments 35 basaltic magma 35 explosive eruptions 35 precessing 35 axis 35 foot Redoubt Volcano 35 Whillans Ice Stream 35 tremblors 35 granitoids 35 foraminifera 35 riskier megacities 35 collisional 35 cyclones 35 Hellas Basin 35 ENE trending 35 sulfur isotope 35 atmospheric CO2 levels 35 aragonite 35 Yellowstone geysers 35 sediments 35 geyser basin 35 crustal thickness 35 cyclonic storms 35 isotherms 34 eruptions 34 lava spewing 34 gravity anomalies 34 structurally deformed 34 quartz carbonate veining 34 subtropical moisture 34 Pacific Decadal Oscillation 34 subsidence 34 ductile deformation 34 Porcupine Destor fault 34 Shiveluch 34 tidal waves 34 Olympus Mons 34 hydrothermal venting 34 ultramafic intrusives 34 oceanic 34 crystallites 34 Ol Lengai 34 volcanic sediments 34 tetrahedra 34 Antarctic glaciers 34 overlying sedimentary 34 earth tremor 34 midlatitudes 34 seismologic 34 sedimentary basin 34 pillow lava 34 Tsunamis 34 momenta 34 perturbations 34 volcano eruptions 34 elastic deformation 34 proton neutron 34 planetary sciences 34 Kamchatka volcanoes 34 metamorphism 34 polar vortex 34 peridotites 34 Mount Gamkonora 34 volcanoclastic rocks 34 submarine volcanoes 34 subatomic 34 massifs 34 hydrothermal fluid 34 basalt 34 Arsia Mons 34 Dr Sinadinovski 34 icebergs 34 Jake Lowenstern 34 Iceland Eyjafjallajökull 34 torus 34 greenschist 34 overlying sandstone 34 Ken Hudnut 34 induced seismicity 34 sedimentary 34 jet stream 34 volcanic breccias 34 Arabia Terra 34 meridional 34 InSAR 34 Martian craters 34 glacier 34 deformed sediments 34 lava extrusion 34 diatremes 34 YORP effect 34 glaciers melt 34 phyllosilicates 34 Tidal waves 34 planet gravitational tug 34 Brownian motion 34 seismically unstable 34 Tom Brocher 34 circular orbits 34 asperities 34 ENSO 34 Seismicity 34 Moderate quakes 34 substorm 34 gravitational 34 fermions 34 Atlantic Multidecadal Oscillation 34 dormant volcanoes 34 melting permafrost 34 toroid 34 Zipingpu 34 Tharsis Montes 34 seismologist 34 tensile stresses 34 obliquity 34 intense hydrothermal alteration 34 andesitic volcanic rocks 34 Eurasian landmass 34 spinning counterclockwise 34 Nevado del Ruiz 34 colder denser 34 protoplanets 34 Explosive eruptions 34 shifting sands 34 stratigraphically 34 equilateral triangles 34 El Chichon 34 dustier stormier atmosphere 34 splay fault 34 earthquake 34 elliptical orbits 34 Greenland icecap 34 massless particles 34 deuterium atoms 34 Yellowstone supervolcano 34 Megathrust 34 geothermal gradient 34 biodiverse regions 34 hadrons 34 eastwards 34 hydrological cycle 34 inclinometers 34 Andean Cordillera 34 quantum particles 34 Kirishima range 34 Caltech seismologist 34 igneous 34 Saturn Uranus 34 Palaeozoic 34 meteor impacts 34 magma molten rock 34 sedimentary deposits 34 forams 34 limestone bedrock 34 glaciologists 34 tremor 34 Laurentide Ice Sheet 34 Whittier Narrows quake 34 icy moons 34 amorphous calcium carbonate 34 metamorphic rock 34 landmark Ahwahnee Hotel 34 tidally 34 neutrino detectors 34 Eruptions 34 circum Pacific 34 axis wobbles 34 magnetic dynamo 34 river deltas 34 Ithaca Chasma 34 mica sheets 34 ankerite 34 EW trending 34 phreatic 34 hole EJD# 34 mass extinction 34 hydrothermal 34 rupture 34 ancient lava flows 34 rescued Ena Zizi 34 compass needles 34 seabed unstable 34 L' Aquila snuggled 34 receding glaciers 33 El Niño La Niña 33 Valles Marineris 33 starquakes 33 midlatitude 33 Sicily Mount Etna 33 Katla volcano 33 calcite crystals 33 Antarctic glacier 33 Atlantic thermohaline circulation 33 electron spins 33 NNW trending 33 REE enriched 33 basaltic 33 vertebra slips 33 Cretaceous sandstones 33 basalts 33 syncline 33 tephra 33 #.# magnitude quake 33 replisome 33 orthogonal axes 33 volcanic craters 33 Lowenstern 33 yardangs 33 Moebius strip 33 oscillations 33 seafloor sediments 33 Andreanof Islands 33 Cenozoic Era 33 Navajo sandstone 33 Richter scale 33 observable universe 33 troposphere 33 Richter Scale rocked 33 cosmic ray particle 33 Warmer oceans 33 volcaniclastics 33 USGS geophysicist Ken Hudnut 33 magnetar 33 superstrings 33 rhyodacite 33 volcanically 33 wavefronts 33 active volcanism 33 glacial interglacial 33 Laurentide ice sheet 33 mud slides 33 calcite 33 lateral epicondyle 33 interannual variability 33 detect gravitational waves 33 magnetic monopoles 33 Brimstone Pit 33 marine sediments 33 carbonate minerals 33 Fram Strait 33 Neutron stars 33 Kauahikaua 33 protoplanet 33 Eyjafjallajokull erupts 33 Precambrian rocks 33 porous sandstone 33 synclinal structure 33 foreshock 33 clathrates 33 ductile 33 interglacial periods 33 Pu'u O'o crater 33 clastic 33 glacier melts 33 striations 33 Madrid Fault 33 silicate minerals 33 Seismic Hazard Maps 33 Nankai trough 33 gaseous planet 33 depositional 33 hydrothermal alteration 33 disseminated pyrite mineralization 33 pyroclastic flow 33 subatomic scale 33 violent seismic upheavals 33 seismographic 33 thermocline 33 volcanic tremor 33 electron pairs 33 Ice Ages 33 supercontinent Gondwana 33 earthquakes volcanoes 33 Pyroclastic flows 33 geoid 33 Jakobshavn Isbrae 33 volcanic mudflows 33 oblate spheroid 33 seamount 33 nuclei 33 lines encircling 33 vibrate 33 sedimentary sequence 33 paleomagnetic 33 elongated orbits 33 carbon atoms 33 sterile neutrino 33 poleward 33 EarthScope 33 neutron star 33 seismological 33 Cryogenian 33 deglaciation 33 basal layer 33 gamma ray emitting 33 ostracods 33 Lava flows 33 Tonankai 33 seabed 33 basaltic rock 33 deformational 33 NE trending 33 moonlets 33 singularities 33 Stephane Mazzotti 33 tripolar 33 Cerberus Fossae 33 photosphere 33 olivine rich 33 Ramapo Fault 33 Einstein relativity theory 33 tsunamigenic 33 breccia vein 33 wavefunction 33 granite greenstone 33 glaciological 33 speleothems 33 Stuart Sipkin 33 Alfven waves 33 tectonic belts 33 glaciation 33 sedimentary rocks 33 Suruga Bay 33 CoRoT 7b 33 multi decadal signal 33 Harley Benz 33 upward sloping 33 Greenland Ice 33 particle beams 33 gravities 33 basalt columns 33 relativistic speeds 33 Arctic permafrost 33 earthquakes jolted 33 galaxy clusters 33 seism 33 electron density 33 melting icebergs 33 glacial 33 equinoxes 33 Great Rift Valley 33 Earths crust 33 Don Blakeman geophysicist 33 magnitude earthquake 33 martian rocks 33 volcanic tuff 33 infrasound 33 Grimsvötn volcano 33 southerly swells 33 megafloods 33 Mount Mazama 33 Galilean moons 33 northwestward 33 magma mixing 33 Milankovitch cycles 33 DNA double helix 33 extinct volcanoes 33 gradational 33 galactic magnetic 33 analyst Vangelis Agapitos 33 Earthquakes 33 crystal lattices 33 Megathrusts produce 33 quantum tunneling 33 Bose Einstein condensates 33 Neukum 33 donor acceptor 33 volcanic eruption 33 dipolar 33 muons 33 Theory posits 33 triangular lattice 33 Antarctic Ice Shelf 33 GNS Science 32 surface hoar 32 Pacific Ocean 32 frictional resistance 32 graphene sheets 32 volcanic gases 32 subatomic particles 32 segmental duplications 32 hardened lava 32 easterly trending 32 Enola Ark. 32 rhyolite tuffs 32 interstellar clouds 32 Greenland glaciers 32 chondrules 32 silicified limestone 32 Ayles Ice Shelf 32 Alfvén waves 32 Roger Musson 32 volcano Olympus Mons 32 continental rifting 32 geological 32 rotate clockwise 32 dimensionless 32 rivers Ganga Yamuna 32 lunar perigee 32 muon 32 seafloor methane 32 Greenland ice 32 Bruce Pressgrave geophysicist 32 Geologic 32 Dzurisin 32 Quake Hits Off 32 Vertical wind shear 32 Sarychev Peak 32 downwelling 32 aftershock sequence 32 northwesterly trending 32 southeasterly direction 32 Cayman Trough 32 HM Cancri 32 Haumea 32 shallowly dipping 32 volcanic earthquakes 32 aftershocks rattled 32 Phanerozoic 32 antineutrinos 32 mafic intrusion 32 portable seismographs 32 polygon shaped 32 SAFOD 32 Destor Porcupine 32 Planetary Physics 32 overthrust 32 Sedimentary rocks 32 gabbroic rocks 32 altered porphyry 32 destructive temblors 32 Geological Survey geologist 32 tsunami waves 32 multi decadal 32 RRATs 32 meta sediments 32 Hematite Slope 32 microchannels 32 heliosphere 32 Geological Survey geophysicist 32 oxygen atoms 32 #.# magnitude temblor 32 planemos 32 periodic oscillations 32 Madrid Seismic Zone 32 loud woosh 32 Temblors 32 GPa 32 Paleozoic sediments 32 Su trudged 32 equatorial 32 basalt lava 32 jovian 32 hydrologist Carolyn Driedger 32 Indonesia Sunda Strait 32 overlying layers 32 volcano sedimentary sequences 32 clasts 32 Deep Impact craft 32 Mount Mayon volcano 32 asteroid belt 32 Gakkel Ridge 32 Mount Tambora 32 mass strandings 32 cosmic collisions 32 karstic 32 wallrocks 32 Oort cloud 32 sealevel 32 Southasia 32 HARPS instrument 32 Kuiper belt objects 32 Denali Fault 32 Antarctic ice 32 igneous intrusive 32 Chicxulub 32 Nisqually quake 32 El Nino La Nina 32 Brunt Ice Shelf 32 laterally 32 colliding galaxies 32 volcano 32 air cyclonic circulation 32 epochal 32 underwater volcanos 32 aftershocks measuring 32 covalent bonds 32 Tropical cyclones