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(Click for frequent words.) 73 Sumatran earthquake 65 undersea quakes 65 subduction zone earthquake 65 megathrust earthquake 64 Nankai Trough 62 crustal movements 62 microearthquakes 61 megathrust quakes 61 tectonic earthquakes 61 Sumatra Andaman 61 Permian extinction 61 tectonic movements 60 Toba eruption 60 fissure eruption 60 tectonic plate movements 60 Siberian Traps 59 megathrust earthquakes 59 Cascadia Subduction Zone 59 seafloor sediments 58 Tunguska explosion 58 thrust faulting 58 Paleocene Eocene Thermal Maximum 58 quakes measuring 58 megaquakes 58 supervolcanoes 58 SeaWiFS 58 undersea earthquake 58 Permian Triassic extinction 58 paleomagnetic 58 Indian Ocean Dipole 58 megathrust quake 58 crustal deformation 58 subduction zone earthquakes 58 KT extinction 57 Cascadia fault 57 Tunguska Event 57 megadroughts 57 Northridge temblor 57 Cryogenian 57 NASA Wilkinson Microwave 57 Tonankai 57 deep convective clouds 57 geoid 57 Laguna Salada fault 57 Venus transits 57 Antarctic ozone 57 Mount Tambora 57 multi decadal 57 ocean basins 57 Cumbre Vieja 57 earthquakes 56 geoneutrinos 56 Palaeocene Eocene Thermal Maximum 56 Richter Scale rocked 56 M#.# earthquake 56 Sr Ca 56 asteroid impacts 56 seismograms 56 foreshocks 56 glacial cycles 56 aftershock sequence 56 seaquake 56 Neogene 56 USArray 56 intraplate 56 QQ# 56 crustal thickness 56 WMAP satellite 56 undersea earthquakes 56 moonquakes 55 subduction earthquake 55 Yellowstone supervolcano 55 cyclonic storms 55 NMSZ 55 cryovolcanism 55 paleoclimatic 55 ESO telescopes 55 megathrust 55 Tohoku earthquake 55 Landsat satellite 55 interferogram 55 deglaciation 55 iridium layer 55 magnitude temblor 55 glaciations 55 Tambora eruption 55 Nankai Trough Zone 55 Hosgri Fault 55 Seismicity 55 interferograms 55 eartquake 55 subduction zones 55 Alpine Fault 55 El Nino Southern Oscillation 55 subglacial lakes 55 Eocene epoch 55 supercomputer simulations 55 Cascadia subduction zone 54 El Niños 54 Sunda Trench 54 Ice Ages 54 isostatic rebound 54 colliding tectonic plates 54 brightest supernova 54 Earthquake magnitudes 54 KT boundary 54 Kilauea Volcano 54 Chicxulub impact 54 volcanism 54 radar altimetry 54 basaltic rocks 54 Pleistocene Ice Age 54 SN Ia 54 InSAR 54 substorm 54 Oligocene epoch 54 Anisotropy Probe 54 satellite altimetry 54 Permian Triassic 54 Powerful quakes 54 Plate Tectonics 54 Keeling Curve 54 Santorini eruption 54 ESA Envisat satellite 54 mainshock 54 cataclysmic eruption 54 seismic shocks 54 atmospheric methane 54 surface temperatures SSTs 54 moon permanently shadowed 53 Nisqually quake 53 quakes 53 Yellowstone Caldera 53 Eyjafjallajökull eruption 53 lunar perigee 53 tsumanis 53 orbiting observatories 53 kyr 53 supervolcano eruption 53 Cenozoic Era 53 SAFOD 53 Earthquake Hazards Program 53 Shiveluch 53 Ulysses spacecraft 53 geomagnetic activity 53 paleoclimate 53 crustal plates 53 Enriquillo Plantain Garden 53 KamLAND 53 Last Glacial Maximum 53 supervolcano 53 Holocene epoch 53 mammal extinctions 53 mud volcano 53 volcanic plumes 53 journal Geology 53 Cassini flyby 53 tectonic plate boundary 53 marine sediments 53 geochronology 53 megaquake 53 mid Pliocene 53 Nomura jellyfish 53 NASA Cassini spacecraft 53 M#.# 53 calderas 53 turbidites 53 tsunamis 53 Strongest aftershock 53 seismically active zones 53 Paleobiology Database 53 crustal 53 interferometric synthetic aperture radar 53 Landsat satellites 53 North Anatolian Fault 53 Gakkel Ridge 53 sediments deposited 53 Kelvin Berryman 53 Arabia Terra 53 eruptive activity 53 glacial retreat 53 Andreanof Islands 53 glacial interglacial 53 undersea quake 52 springtime ozone 52 stellar occultations 52 penumbral lunar eclipse 52 undersea volcanoes 52 Tsunamis 52 Chilean Earthquake 52 Chicxulub crater 52 Younger Dryas 52 subduction fault 52 NASA QuikScat satellite 52 interglacial period 52 sulfur isotope 52 Permian Period 52 subglacial 52 Seafloor 52 atmospheric CO2 levels 52 Amundsen Sea Embayment 52 Envisat satellite 52 sub glacial lakes 52 upwellings 52 biogeochemical 52 meteorite impacts 52 Harmful algal blooms 52 seismic activity 52 whale beachings 52 seismicity 52 Ordovician extinction 52 volcanic tremor 52 cyclone Yemyin 52 Tibetan Plateau 52 tectonic stresses 52 earth crust 52 Soufriere Hills Volcano 52 Antennae Galaxies 52 ocean eddies 52 volcanic arcs 52 NASA Voyager spacecraft 52 dinosaur extinction 52 smaller aftershocks rattled 52 Sunda megathrust 52 geohazard 52 radio occultation 52 Thirteen temblors 52 seismographic stations 52 magnitude earthquake 52 GLOF 52 Roger Musson 52 geophysicist Don Blakeman 52 TrES 4 52 Murchison meteorite 52 flood basalts 52 Galileo spacecraft 52 Aqua satellite 52 ENSO cycle 52 YORP effect 52 Russia Kamchatka Peninsula 52 reionization 52 El Chichon 52 geological timescale 52 Late Heavy Bombardment 52 volcanic quakes 52 tremblor 52 glacial earthquakes 52 Snowball Earth 52 hurricane landfalls 52 Wysession 52 supermoons 52 aseismic 52 geomagnetism 52 Nazca plate 51 anthropogenic warming 51 compressional 51 Mariana Arc 51 radiative transfer 51 Whittier Narrows earthquake 51 HARPS spectrograph 51 NSIDC 51 Viking Lander 51 magnitude Loma Prieta 51 geologically active 51 YU# 51 Tunguska asteroid 51 subduction quake 51 glaciological 51 Jakobshavn 51 Dr Brian Baptie 51 Great Oxidation Event 51 DART buoys 51 Megathrusts occur 51 Sunda trench 51 steam eruptions 51 Chicxulub Crater 51 oceanic circulation 51 ocean ridges 51 Yellowstone caldera 51 smallest exoplanet 51 RS Ophiuchi 51 Andaman Islands quake 51 Anisotropy Probe WMAP 51 auroral activity 51 active volcanism 51 explosive volcanism 51 superheavy elements 51 El Niño La Niña 51 Eyjafjallajokul erupted 51 neutrino experiments 51 Whittier Narrows quake 51 Nankai trough 51 coccolithophores 51 Deccan Traps 51 meteorite bombardment 51 Brian Baptie 51 glacial melt 51 interannual variability 51 M#.# quake 51 El Niño Southern Oscillation 51 Tunguska meteorite 51 Moment Magnitude Scale 51 Chile Chaiten volcano 51 tectonic plate shifts 51 ARkStorm 51 magnitude tremor 51 #.# magnitude earthquake 51 Madden Julian Oscillation 51 Comet 9P/Tempel 1 51 Tsunami tidal waves 51 equatorial Pacific Ocean 51 Phanerozoic 51 lithosphere 51 NASA THEMIS 51 magnetic substorms 51 GRB# 51 turtle strandings 51 Longmen Shan fault 51 seismologic 51 Mark Zoback 51 lowermost mantle 51 subduction zone 51 Type Ia supernova 51 AMSR E 51 Ritcher scale 51 tide gauges 51 Subduction zones 51 dynamical processes 51 plate tectonics 51 Hawking Radiation 51 Chicxulub 50 interglacials 50 mud volcanoes 50 John Bellini geophysicist 50 SST anomalies 50 Neoproterozoic 50 superstorms 50 Noto Peninsula 50 Fermi telescope 50 Earth tectonic plates 50 impactors 50 Jakobshavn Isbrae 50 Hiroshima atomic bombs 50 ray Space Telescope 50 megaflood 50 volcanic tremors 50 Tohoku Earthquake 50 X ray pulses 50 sedimentological 50 Mercury flyby 50 tsunami tidal waves 50 geomorphic 50 cosmic ray flux 50 megadrought 50 Tharsis Rise 50 mitochondrial genomes 50 geomorphological 50 astronomical phenomena 50 felsic intrusions 50 La Silla Observatory 50 MN4 50 Borealis basin 50 HARPS spectrograph attached 50 Atlantic Multidecadal Oscillation AMO 50 oceanic trenches 50 Toutatis 50 Cosmic Microwave Background 50 Comet Shoemaker Levy 50 starquakes 50 geologic 50 solar irradiance 50 microlensing events 50 earth tremors 50 Jupiter moon Io 50 Gerasimos Papadopoulos 50 Envisat ASAR 50 neutrino oscillation 50 magnetic reconnection 50 Richter Scale jolted 50 Tunguska 50 sedimentary deposits 50 cosmic microwave radiation 50 Denali Fault 50 geochemists 50 Hubble observations 50 substorms 50 Permian Triassic boundary 50 Iceland Eyjafjallajökull 50 richter scale 50 Tertiary Period 50 megafauna extinction 50 hydrothermal activity 50 Quaternary Period 50 eathquake 50 cryosphere 50 glacial meltwater 50 mantle convection 50 InfiniTEM survey 50 bleachings 50 vegetation greenness 50 seismogenic 50 Pinatubo eruption 50 antineutrino 50 EarthScope 50 gravitational redshift 50 seabed sediments 50 southern supercontinent 50 MODIS 50 tidal gauges 50 volcano Krakatau 50 Hesperian Epoch 50 GRACE satellites 50 Coral bleaching 50 Pu'u O'o vent 50 meteor impacts 50 magnitude tremblor 50 sediment cores 50 Pu'u O'o crater 50 Late Cretaceous Period 50 Gamma ray burst 50 Tycho supernova 50 Plate tectonics 50 Krakatoa eruption 50 exoplanets orbiting 50 phytoplankton bloom 50 telescopic observations 50 tectonic 50 El Nino warming 50 neutrino detectors 50 Krakatoa erupted 50 galaxy redshift 50 Yuri Fialko 50 aerosol concentrations 50 Calaveras Fault 50 subpolar 50 Richter Scale shook 50 GRB #B 50 Saturn moon Enceladus 50 microlensing 50 Pavlof 50 Indonesia Sunda Strait 50 volcanic activity 50 Subduction zone 50 cinder cones 50 supernova explosion 50 Grímsvötn 50 Fomalhaut b 50 spectroscopic measurements 50 tectonic activity 50 Hellas Basin 49 seismic waves 49 earthquakes volcanic eruptions 49 Okmok Caldera 49 meteorological phenomena 49 Neanderthals interbred 49 cataclysmic eruptions 49 radar interferometry 49 Titan flyby 49 interglacial 49 GtC 49 CMB radiation 49 Volcanism 49 volcanic gases 49 submarine volcanoes 49 Magellanic Stream 49 Martian craters 49 Magnitudes 49 Cryogenian period 49 Gamburtsev 49 tsunamigenic 49 seismograph stations 49 Chuetsu region 49 El Ninos 49 Loma Prieta quake 49 Nikku Madhusudhan 49 Tunguska object 49 brittle deformation 49 NASA satellites orbiting 49 Nature Geoscience 49 Saturn moon Mimas 49 Elsinore fault 49 tremor measuring 49 Kerguelen Plateau 49 grabens 49 jovian 49 volcano reawakened 49 Tunguska Siberia 49 polar vortex 49 proton decay 49 Roland Burgmann 49 seismic upheavals 49 magnitude earthquake struck 49 crustal plate 49 Himalayan glaciers melting 49 Comet Halley 49 perigee moon 49 Luann Becker 49 Lituya Bay 49 Ontario Lacus 49 scarps 49 geodynamic 49 Kanto earthquake 49 Ninety jolts 49 Ranging MESSENGER spacecraft 49 ESA Envisat 49 NASA Far Ultraviolet 49 interglacial periods 49 tropical cyclone Nargis 49 Samuel Oschin Telescope 49 Cosmic Microwave Background CMB 49 Cretaceous Paleogene boundary 49 Eocene Epoch 49 neutron spectrometer 49 faunas 49 hominid evolution 49 iceberg calving 49 extrasolar planetary 49 subatomic scale 49 foraminifera 49 volcanic eruption 49 auroral displays 49 underwater volcanoes 49 Tangshan earthquake 49 Asteroid Apophis 49 Antarctic glacier 49 glacial melting 49 X ray telescopes 49 epicentred 49 anticlines 49 Gerard Kuiper 49 Vernon Kousky NOAA 49 Sciencexpress 49 geomagnetic substorms 49 Himalayan river basins 49 Seismologists 49 Heliospheric Observatory SOHO 49 WASP #b 49 Pliocene epoch 49 lunar crust 49 explosive eruptions 49 RS Oph 49 Shinmoedake 49 Orcus Patera 49 Seismological Society 49 Shinji Toda 49 moon gravitational pull 49 Climate Experiment GRACE 49 warm interglacial periods 49 neutrino physics 49 Kilauea eruption 49 geomagnetic storm 49 Eyjafjallajokull volcano erupted 49 Supermoon 49 ensuing tsunamis 49 distant supernovae 49 Mount Pinatubo exploded 49 seismic tremors 49 Kermadec Arc 49 Hipparcos 49 Shakhova 49 periodicities 49 MODERATE earthquake 49 magnitude trembler 49 Nevado del Ruiz 49 exoplanetary 49 particle physics experiments 49 sunspot numbers 49 PSR J# +# 49 Syrtis Major 49 ocean upwelling 49 Nature Geoscience journal 49 Temblors 49 hydrate deposits 49 megafloods 49 continental crust 49 Sarychev Peak 49 Neoproterozoic era 49 NASA MODIS 49 Hadean Eon 49 Moderate Resolution Imaging 49 Geminid meteor showers 49 SN #gy 49 martian meteorites 49 HiRISE image 49 subseafloor 49 subduction earthquakes 49 Antarctic Circumpolar Current 49 geological epoch 49 accelerographs 49 neutrino mass 49 Noachian 49 proton proton collisions 49 ° C warmer 49 Zootaxa 49 paleoenvironmental 49 volcanic eruptions 49 situ measurements 49 polarimetric 49 particle smasher 49 earthquake 49 astronomical alignments 48 occultations 48 GRB # 48 Kerry Sieh 48 Cretaceous periods 48 tectonic plate dives 48 auroral emissions 48 electromagnetic flux 48 jellyfish Aequorea victoria 48 hydrothermal vent 48 Volcanic Activity 48 Super Outbreak 48 midlatitudes 48 gravitational microlensing 48 radiometric dating 48 antineutrinos 48 Umar Rosadi 48 exo planet 48 seismographic 48 Pu'u O'o 48 Solar eclipses 48 temperature reconstructions 48 seismic reawakening 48 Eyjafjallajökull glacier 48 Devonian Period 48 volcanoes 48 Super Kamiokande 48 Kaguya spacecraft 48 magmas 48 chlorophyll concentrations 48 Ogasawara Islands 48 windstorm Xynthia 48 Hawaiian Volcano Observatory 48 Titan flybys 48 Wilkinson Microwave Anisotropy Probe 48 RHESSI 48 orbiting Hubble telescope 48 cratons 48 Laurasia 48 mass extinctions 48 Gravitational waves 48 Envisat 48 glaciers melted 48 IceCube Neutrino Observatory 48 planet magnetosphere 48 intrinsic brightness 48 USGS 48 subduction zone quake 48 Wilkins Ice Shelf 48 Jacques Laskar 48 sunspot cycle 48 proton collisions 48 bathymetry 48 comet nuclei 48 airglow 48 Cretaceous Tertiary 48 aboard ESA Envisat 48 millisecond pulsar 48 receding glaciers 48 Molucca Sea 48 Bose Einstein condensates 48 SRTM 48 glacier calving 48 El Nino La Nina 48 Chazy Reef 48 deformational 48 Cerberus Fossae 48 Apophis asteroid 48 ship Akademik Fyodorov 48 Equatorial Pacific 48 spiral galaxy NGC 48 glaciers retreated 48 axial tilt 48 Pleistocene epoch 48 unmapped fault 48 Windstorm Kyrill 48 temblors 48 proton antiproton collisions 48 SuperMoon 48 atmospheric CO 48 G#.# +#.# 48 Agulhas Current 48 Noachian era 48 #.# magnitude quake 48 Huygens descent 48 climate modellers 48 Ground penetrating radar 48 Earthquake Hazards Reduction 48 extinct volcanoes 48 Nili Fossae 48 Martian gullies 48 mantle plumes 48 atmospheric CO2 concentration 48 Laurentide ice sheet 48 geodetic 48 supercontinent 48 species extinctions 48 magnetic monopoles 48 Leonid meteor 48 ASAR images 48 Mary Lou Zoback 48 UAVSAR 48 Triassic Period 48 Bhuj earthquake 48 severe droughts 48 gravitational lensing 48 comet Shoemaker Levy 48 IPCC AR4 48 subduction 48 lava extrusion 48 cosmic collisions 48 Seismological Laboratory 48 geodynamics 48 proton proton 48 magnetic geophysical anomaly 48 Uninhabited Aerial Vehicle 48 Greenland icecap 48 landmasses 48 Igor Semiletov 48 Martian volcanoes 48 warmings 48 Tahoe Fault 48 Suruga Bay 48 GFZ 48 Cambrian Explosion 48 magnetic polarity 48 Kirishima range 48 Volcanic eruptions 48 polar mesospheric clouds 48 earliest tetrapods 48 sulfur isotopes 48 spin Seebeck 48 DMSP satellites 48 seismology 48 Earth crust 48 numerical modeling 48 Submillimeter Array 48 snowcapped volcano 48 Niigata Chuetsu Earthquake 48 reef corals 48 seismological 48 trophic cascades 48 AKARI 48 journal Meteoritics 48 laser altimeter 48 tidal waves 48 numerical simulations 48 vertebrate fossil 48 tremblors 48 cosmic ray collisions 48 Auger Observatory 48 spatial scales 48 proton antiproton 48 bonebed 48 Severe droughts 48 glacial landforms 48 Mars Orbiter Laser Altimeter 48 V# Mon 48 rifting 48 Firestorms 48 Antarctic glaciers 48 Late Ordovician 48 evaporite deposits 48 Orbiter LRO 48 fossilized creatures 48 Weddell Sea 48 Ayles Ice Shelf 48 tectonic boundary 48 spinels 48 Grímsvötn volcano 48 Eemian 48 Loihi 48 SN #A 48 www.usgs.gov 48 sunspot cycles 48 spatial variability 48 meteorite fragments 48 Triassic Jurassic 48 Palaeozoic sedimentary 48 Supernova #A 47 Hadean 47 Pluto Charon 47 CoML 47 phytoplankton blooms 47 magnitude quake 47 cosmic ray intensity 47 fossilized skull 47 AN EARTHQUAKE 47 volcanically active 47 runaway thermonuclear 47 Mount Unzen 47 ULIRGs 47 Petermann Glacier 47 lava fountains 47 COROT 7b 47 seiche 47 Macroscale Interactions during 47 Gondwanaland 47 San Jacinto Fault 47 Newport Inglewood 47 observable phenomena 47 seamounts 47 ostracods 47 Big Bang Machine 47 atmospheric oceanic 47 Stegodon 47 ionospheric disturbances 47 moon Mab 47 X ray observatories 47 NASA COBE satellite 47 Greenland glacier 47 Bruce Presgrave 47 journal Nature Photonics 47 continental drift 47 Megathrust 47 tectonic uplift 47 hydrothermal fluid 47 partial skeleton 47 seamount 47 abiogenesis 47 coronal mass ejections CMEs 47 remotely sensed 47 Milankovitch 47 Kii Peninsula 47 galaxy M# [001] 47 Antarctic Ice Shelf 47 tectonic fault 47 Cyclone Yemyin 47 Eta Aquarid meteor shower 47 radiometric measurements 47 megamouth shark 47 bathymetric survey 47 cometary dust 47 spectral bands 47 Raman spectra 47 igneous rocks 47 Gregory Asner 47 gaseous planet 47 NASA Lunar Reconnaissance 47 devastative earthquake 47 Arctic permafrost 47 supermoon 47 seafloors 47 RXTE 47 Keck telescopes 47 aurorae 47 benthos 47 Walter Arabasz director 47 SAR interferometry 47 Gondwana supercontinent 47 logarithmic scale 47 Ryukyu Trench near 47 HiRISE camera 47 Cassini flybys 47 HiRISE images 47 journal Palaeontology 47 Einstein relativity theory 47 Nature Structural Biology 47 Cambrian Period 47 Tuamotu Archipelago 47 glacier shrinkage 47 Eyjafjallajökull erupted 47 barometric pressures 47 bathymetric 47 scientist Vassilis Angelopoulos 47 HM Cancri 47 primitive meteorites 47 Schellart 47 coastal upwelling 47 coral reef biodiversity 47 hypoxic zone 47 Quadrantids 47 Superstorm 47 journal Nature Geoscience 47 Giorgos Stavrakakis 47 supercontinents 47 Paleoclimate 47 Landsat images 47 matter antimatter asymmetry 47 Mission SRTM 47 journal Molecular Phylogenetics 47 glaciation 47 mammal fossils 47 yardangs 47 Higgs bosons 47 San Andreas Fault 47 GJ#b 47 gravitational lenses 47 Valles Marineris 47 temblor 47 Grimsvoetn 47 Type Ia supernovas 47 particle collisions 47 Envisat Advanced Synthetic Aperture 47 radial velocity technique 47 Keilis Borok 47 submillimetre 47 Cosmologists 47 GROND 47 Bering Glacier 47 nondestructive tsunami 47 Moderate Resolution 47 tectonic faults 47 Cat Paw Nebula 47 Gusev crater 47 Surface Temperature 47 climatological 47 Radar ASAR instrument 47 chimpanzee genome 47 stratovolcano 47 galactic clusters 47 elemental abundances 47 optical interferometry 47 Planck satellite 47 microwave remote sensing 47 thermal inertia 47 induced polarization IP chargeability 47 volcano Krakatoa 47 Ediacaran Period 47 destructive temblors 47 Antarctic Dry Valleys 47 ringed planet 47 Cambrian explosion 47 sunspot activity 47 Roskilde fjord 47 extragalactic 47 Late Pleistocene 47 Doppler measurements 47 subducting plate 47 HARPS instrument 47 seafloor 47 Roger Bilham 47 Telescope BAT 47 spokeswoman Clarice Ransom 47 aftershock jolted 47 marine ecologists 47 Amundsen Sea 47 electromagnetic anomaly 47 hominid fossil 47 magnetic susceptibility 47 erupting undersea 47 Edgecumbe earthquake 47 Typhoon Winnie 47 Sanriku 47 eruptions 47 Emile Okal 47 Katla volcano nearby 47 GJ #b [001] 47 ALH# 47 neutrino telescope 47 lithogeochemical samples 47 WISE infrared 47 anthropogenic emissions 47 Saturnian moon 47 Cenozoic 47 Galaxy Evolution 47 Appy Sluijs 47 foot Redoubt Volcano 47 Martian crater 47 Late Devonian 47 Antarctica EPICA 47 Rignot 47 La Silla observatory 47 sedimentary layers 47 La Ninas 47 seismic hydrographic 47 Solar flares 47 Anatahan 47 paleoclimatology 47 EF Scale 47 MARSIS 47 earthquakes volcanoes 47 Siberian permafrost 47 Maastrichtian 47 neutrino beam 47 tectonics 47 Cretaceous Tertiary KT 47 deformation 47 seismometers 47 GNS Science 47 microfossils 47 Ben Dimiero 47 International HapMap Consortium 47 Moment Magnitude scale 47 Henize #-# 47 ENVISAT 47 Typhoon Rusa 47 Greenland Ice 47 Early Cretaceous 47 Mpc 47 Qinghai Tibet Plateau 47 Imaging Spectrometer MERIS 47 IP Resistivity 47 gravity anomalies 47 Geminid shower 47 warship Vasa 47 Service WGMS 47 methane hydrate 47 NEAs