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(Click for frequent words.) 71 Geological Survey geophysicist 69 USGS seismologist 67 Caltech seismologist 61 Geological Survey geologist 61 Santa Barbara USGS seismologist 61 USGS geologist 61 Erik Pounders 61 Earthquake Hazards Program 60 Seismologist 60 Tom Brocher 60 Geological Survey 60 Hough seismologist 59 Seismological Laboratory 58 USGS geophysicist 57 seismologist 57 USGS scientist 57 Zoback 56 Dutton geophysicist 55 Volcanologist 55 Geological Survey volcanologist 55 Geologic Survey 55 Blanpied 55 Geological Survey USGS 54 Northridge temblor 54 Wysession 53 Ken Hudnut 53 Geophysicist 52 Baldwin geophysicist 52 USGS 52 planet USGS geophysicist 52 Nevada Seismological Laboratory 52 USGS Earthquake Hazards 52 Mary Lou Zoback 52 hydrologic technician 52 earthquakes 51 Utah Seismograph Stations 51 JPL geophysicist 51 seismologist Lucy Jones 51 geophysicist 51 Cascadia fault 51 John Bellini geophysicist 51 Beroza 51 Ellsworth geophysicist 50 Relu Burlacu 50 Geological Survey Cascades Volcano 50 Seismological Centre 50 Roger Bilham 50 Geological Survey ecologist 50 Multi Hazards Demonstration 50 Vulcanologist 50 Emile Okal 50 Volcano Observatory 49 seismology lab 49 USArray 49 Zollweg 49 quakes 49 Oppenheimer seismologist 49 San Jacinto Fault 49 Geological Survey Hawaiian Volcano 49 PTWC 49 unmapped fault 49 Earthquake Hazards Project 49 volcano observatory 49 Seismology Laboratory 49 Stavrakakis 49 Roger Musson 49 seismologists 49 planetary scientist 49 Elsinore fault 49 Earthquake Engineering 48 Cascades Volcano Observatory 48 Bonin Islands 48 Atwater geologist 48 Fenglin Niu 48 seismology 48 GNS seismologist 48 Roland Burgmann 48 vulcanologist 48 POWERFUL earthquake 48 Seismic Network 48 Seismologists 48 Wasatch Fault 48 Victor Sardina 48 seismological laboratory 47 megaquake 47 Ken Gledhill 47 Cholame 47 Chaiten Volcano 47 earthquake 47 Stein geophysicist 47 Eugene Schweig 47 Mayes forecaster 47 Kepulauan Mentawai region 47 Caltech Seismological Laboratory 47 USGS seismologist Susan 47 Calaveras Fault 47 Severe Tropical Cyclone 47 Tsunami Warning Centre 47 Hawaiian Volcano Observatory 47 Northridge quake 47 Geological Survey hydrologist 47 subduction fault 47 undersea earthquakes 47 Bruce Presgrave geophysicist 46 seismically active regions 46 Chris Waythomas 46 Mark Zoback 46 Lamont Doherty 46 Geological Survey BGS 46 spokeswoman Clarice Ransom 46 Nisqually quake 46 GNS Science 46 seismology institute 46 Megathrusts produce 46 tremblor 46 Kate Hutton seismologist 46 Earthquake Information 46 marine geologist 46 quake jolted 46 Seismological Society 46 Hiroo Kanamori 46 Active Tectonics 46 Dan Dzurisin 46 Montserrat Volcano Observatory 46 M#.# quake 46 Seismology Lab 46 Tsunami Warning Center 46 seismically active zones 46 dePolo 46 Athens Geodynamic Institute 46 #.# magnitude temblor 46 Caltech astronomer 46 van der Hilst 46 San Andreas Fault 46 L. Van Eenennaam 46 GNS Science seismologist 45 Umar Rosadi 45 Madrid Seismic Zone 45 Synolakis 45 geosciences professor 45 Glaciologist 45 SAFOD 45 Sumatra Andaman 45 Michael Blanpied 45 Carolyn Driedger 45 Bilham 45 aftershock rocked 45 Denali Fault 45 aftershock sequence 45 Cliff Frohlich 45 Donald Johanson 45 Cascadia subduction zone 45 Jack Moehle 45 temblors 45 Seismological Observatory 45 Nankai trough 45 Gerasimos Papadopoulos 45 Laguna Salada fault 45 Kusky 45 Verosub 45 Oshika Peninsula 45 USGS geophysicist Jessica Sigala 45 Chip Groat 45 Geological Survey biologist 45 geomorphologist 45 Storrie Lombardi 44 Al Shukri 44 planetary geologist 44 epicentered 44 Planetary Physics 44 intraplate 44 seismologist Kate 44 EarthScope 44 Cascade Volcano Observatory 44 Edgecumbe earthquake 44 Subduction zone 44 J. Heeger 44 M#.# earthquake 44 megathrust 44 subduction zones 44 Cascadia subduction 44 temblor centered 44 expert Kerry Sieh 44 #.# magnitude earthquake 44 Molucca Sea 44 tectonics 44 Giorgos Stavrakakis 44 Jessica Sigala 44 Kandilli seismology center 44 Andreanof Islands 44 USGS geophysicist Randy 44 aftershock jolted 44 temblor 44 Accuweather meteorologist 44 fissure eruption 44 NCAR scientist 44 Carnegie Observatories 44 Geodynamic Institute 44 tatami floor mats 44 volcanic mudflows 44 Aftershocks rattle 44 Gidon Eshel 44 Shad O'Neel 44 Quake rattles 44 Strong aftershocks rattled 44 Forensic anthropologist 44 paleobiologist 44 quake rattles 44 Doroud toured 44 USGS hydrologist 44 Kauahikaua 44 Moderate quake 44 Paleoanthropologist 44 Jane Ferrigno 44 Yeats professor emeritus 44 Dr Brian Baptie 44 paleoecologist 44 rescued Ena Zizi 44 quake 44 following masive earth 44 epicentral region 44 aftershock rattles 44 Seismological Institute 44 Vidale 44 Walter Arabasz director 43 Particle Astrophysics 43 Natural Hazards 43 aseismic 43 seismograph stations 43 USGS geologist Brian 43 Whittier Narrows earthquake 43 Geophysicist Don Blakeman 43 mainshock 43 foreshocks 43 Coso Junction 43 Quake shakes 43 Lake Vui 43 Earthquake Hazards 43 Planetary scientist 43 Pisco Peru 43 Geological Survey vulcanologist 43 earthquake jolts 43 geohazard 43 Berkeley Geochronology Center 43 Kasmiati 43 Heasler 43 Rahmat Priyono supervisor 43 megathrust earthquake 43 Loma Prieta 43 seismographs 43 Gerard Fryer 43 Hosgri Fault 43 seismic activity 43 Alpine Fault 43 tremor shook 43 Tonankai 43 Llaima 43 seismically active 43 Leonardo Seeber 43 geologist 43 Seismologist Susan 43 Cumbre Vieja 43 Jessica Sigala geophysicist 43 NWS Meteorologist 43 AN EARTHQUAKE 43 Stephane Mazzotti 43 Washington Seismology Laboratory 43 aftershocks rattled 43 generated tsumani 43 Harley Benz 43 USGS seismologist Lucy 43 Strongest aftershock 43 geotechnical engineer 43 Dr Sinadinovski 43 Cenko 43 Indonesian Meteorology 43 Soufriere Hills volcano 43 tremblors 43 Earthquake Swarm 43 tremor epicenter 43 Earle seismologist 43 Cabo Gracias Dios 43 Koryak region 43 Catherine Yankelevich survived 43 Navy Fleet Numerical 43 Strong quake jolts 43 Aftershocks Hit 43 geological sciences 43 provincial seismological bureau 42 tectonic activity 42 Richard Luckett seismologist 42 mammalogist 42 megaquakes 42 NMSZ 42 Lowenstern 42 geophysicist Gerard Fryer 42 quake shakes 42 Pacific Northwest Seismograph 42 Greg Beroza 42 geodynamics 42 volcanic arcs 42 Dzurisin 42 Loma Prieta quake 42 Kermadec Islands 42 Ed Laguerta 42 GeoNet 42 Washington seismology lab 42 MetService forecaster 42 Seismic Safety 42 Volcano eruptions 42 Mount Manaro 42 Volcanologists 42 Strong aftershocks 42 Costas Synolakis 42 #.# magnitude quake 42 Nankai Trough 42 megathrust earthquakes 42 Weather Service Meteorologist 42 Richter Scale rocked 42 Agus Budianto 42 Jeroen Tromp 42 compressional 42 Grimsvotn volcano accompanied 42 volcano caldera 42 Brian Baptie 42 Lori Dengler 42 Lick Observatory 42 Chuetsu region 42 Masatoshi Koshiba Japan 42 tectonic plates collide 42 Geological Survey Earthquake Hazards 42 Berkland 42 Coast Guard Lt. jg 42 Bruce Presgrave 42 killed Ramond niece 42 Yingxiu Beichuan 42 Seismological Bureau 42 Siberut island 42 Tokai earthquake 42 quake epicenter 42 Scripps Oceanography 42 High Altitude Observatory 42 Mount Soputan 42 aftershock jolts 42 paleoclimatologist 42 Oceanographer 42 Shulters 42 magnitude temblor 42 Earthquake Hazards Reduction 42 Sichuan Shifang 42 MODERATE earthquake 42 Tiampo 42 Stan Woosley 42 concrete seawalls breakwaters 42 Earthquake rattles 42 Honshu island 42 trembler 42 Fort Tejon 42 Mount Unzen 42 Uhrhammer 42 Phillip Klotzbach 42 seismometer 42 geologist Dan Dzurisin 42 Quake Shakes Southern 42 Seismological Service 42 bioengineering professor 42 North Anatolian Fault 42 Madrid Fault Zone 42 tsunamigenic 42 seismographic stations 42 agency GNS Science 41 Chillan Chile 41 Manua Islands 41 Sunda Trench 41 Chris Waythomas geologist 41 seismograms 41 Cascadia Subduction Zone 41 aftershock 41 subduction zone 41 subduction zone earthquake 41 Aftershock rattles 41 USGS Magnitude 41 Seafloor Mapping Laboratory 41 Quillagua 41 aftershock rattled 41 oceanographer 41 exoplanet hunter 41 geoscientist 41 Pacific Tsunami Warning 41 Geophysical Observatory 41 Seismic Hazard Maps 41 Moment Magnitude Scale 41 temblor epicenter 41 Enrico Fermi Institute 41 tectonic plate 41 USGS geophysicist Amy 41 Ed Josberger glaciologist 41 quakes epicenters 41 Moment Magnitude scale 41 biogeochemist 41 subduction earthquake 41 megathrust quake 41 aftershock shook 41 Mount Gamkonora 41 volcanology 41 eathquake 41 astronomer 41 Volcanic Observatory 41 Kirschvink 41 marine geophysicist 41 NWS forecaster 41 Ratdomopurbo 41 Saumlaki 41 Kirishima range 41 PHIVOLCS 41 Von Frese 41 Enriquillo Plantain Garden 41 Cuyamaca lakeside town 41 Earthquake Prediction 41 Moderate quakes 41 Geoscience Australia 41 earthquake rattles 41 Waverly Person 41 volcano erupts 41 Ahmad Zakir 41 quakes rattle 41 Ritcher scale 41 supervisor Andre Gougis 41 Curico Chile 41 seismological 41 Pu'u O'o 41 Leonard Druyan 41 Jody Bourgeois 41 Noto peninsula 41 Coauthor 41 Madrid Fault 41 Vladimir Keilis Borok 41 Cayupi 41 tremor measuring 41 USGS Cascades Volcano 41 atmospheric sciences professor 41 geophysicist Don Blakeman 41 rattles Sumatra island 41 Richter Scale jolted 41 aftershocks jolted western 41 Padang Sumatra 41 Syamsu Rizal 41 Strobin 41 Indonesia Sumbawa island 41 epicentred 41 crustal deformation 41 Dennis Mileti 41 Alaska Volcano Observatory 41 Supertyphoon 41 PARKFIELD Calif. 41 Ausbrooks 41 Sporadic looting continues 41 Seismological Network 41 volcano Krakatau 41 atmospheric chemist 41 Earthquake 41 WARRANT ARREST BULLHEAD CITY 41 Jiashian especially 41 Bramley Murton 41 Seismology 41 Earthquake jolts 41 Northridge earthquake 41 Keilis Borok 41 MacAyeal 41 aftershock measuring 40 Kandrian 40 Kerry Sieh 40 Etorofu islands 40 Kamaishi Iwate prefecture 40 Izu islands 40 Whittier Narrows quake 40 Sumatran earthquake 40 Powerful aftershocks 40 Hosseinabad 40 fragile reef ecosystems 40 seismologist Ken 40 Teton Fault 40 quakes measuring 40 Egill Hauksson seismologist 40 undersea earthquake 40 Anatahan Volcano 40 Sichuan seismology bureau 40 Sarigan 40 Earth crust 40 Peru Geophysics 40 Mark Niesse contributed 40 ensuing tsunamis 40 Geophysics 40 von Frese 40 seismologic 40 volcano eruptions 40 Weather Service meteorologist 40 Nisqually earthquake 40 volcanology institute 40 Chi Heon cheol 40 Stuart Sipkin 40 Geological Survey CGS 40 tectonic plate boundary 40 Aru Islands 40 Syahnan 40 Mount Karangetang 40 Aftershocks Rattle 40 Budi Waluyo 40 Mauna Loa volcano 40 Basyurt 40 Jeremy Schmutz 40 Volcano Disaster Assistance 40 Mount Katla 40 USGS volcanologist 40 heavy artillery bombardments 40 crustal movements 40 Elsinore Fault 40 Danny Hilman Natawidjaja 40 unreinforced masonry buildings 40 aftershocks 40 Nazca plate 40 Kandilli Observatory 40 geologic faults 40 Earthquake Networks 40 Montserrat volcano 40 Mayor Hiroshi Aida 40 Steinunn Jakobsdottir geophysicist 40 Kilauea summit 40 NASA Jet Propulsion Lab 40 L' Aquila snuggled 40 Calderas 40 Caspar Ammann 40 geographer 40 Earthquake Jolts 40 volcanologist 40 Parkfield quake 40 Palomar Observatory 40 Sunda megathrust 40 Climatologist 40 Japan Meteorological Agency 40 Quake Strikes 40 Karakocan 40 vertebrate paleontologist 40 Geonet 40 Simeulue islands 40 Floods landslides droughts 40 Jim Kauahikaua scientist 40 Seismological 40 Mount Kelut 40 Jeremy Bailenson 40 Richter scale jolted Wenchuan 40 Berkeley Seismological Laboratory 40 GNS Science GeoNet 40 Visit USGS.gov 40 Kilauea caldera 40 aftershocks Bachelet 40 Dorothy Kruegermann 40 Victor Sardina geophysicist 40 Seismology Phivolcs 40 seismometers 40 Hamish Pritchard 40 geochemist 39 CU Boulder geological 39 temperamental Soufriere Hills 39 Keck Telescope 39 H. Gleick 39 LDEO 39 subduction quake 39 Mariana Arc 39 Yanjin 39 Earthquake Rocks 39 Melosh 39 Ranongga 39 Mount Spurr 39 Indonesian volcanology agency 39 writer Jay Alabaster 39 paleobotanist 39 Galeras volcano 39 Market Rasen Lincolnshire 39 Postdoctoral fellow 39 Lt. Gonzalo Gerardo 39 M#.# quake jolts 39 #.# magnitude aftershock 39 Halemaumau crater 39 Planetary Sciences seminar 39 cognitive neuroscientist 39 Alaska Tsunami Warning 39 geologic hazards 39 ShakeOut 39 Molecular biologist 39 Shinmoedake 39 Paul Caruso geophysicist 39 Shoreline Fault 39 Great Tohoku Earthquake 39 toppled chimneys 39 geologically active 39 tremor 39 Sichuan Seismological Bureau 39 MIT planetary scientist 39 Kanamori 39 Abolhassan Astaneh Asl 39 southernmost islands 39 Earthquake shakes 39 Bernard Doft 39 Colima volcano 39 Newport Inglewood 39 geobiologist 39 Climate Impacts Group 39 seismological bureau 39 geophysicists 39 Ph.D. Associate Professor 39 Alaska Fairbanks Geophysical 39 Tropical cyclone 39 Submillimeter Array 39 Electorate Nominating Committee 39 Arabasz 39 van der Leeuw 39 Hollander associate professor 39 PhD associate professor 39 Mount Stromlo Observatory 39 Wills Neuroscience 39 Wdowinski 39 ichi reactors 39 Talca Chile 39 El Ninos 39 seismological institute 39 Philippines Mayon volcano 39 Census Bureau demographer 39 Mali'u Takai deputy 39 journal Geology 39 Jim Kauahikaua 39 Volcano erupts 39 Metservice forecaster 39 Kristin Vogfjord geologist 39 Catherine Gase 39 Meterologist 39 Sangihe island 39 atop Mauna Kea 39 Pu'u O'o crater 39 Explainer thanks 39 L. Garwin 39 NWS hydrologist 39 Niesse contributed 39 Cosmological Physics 39 Luann Becker 39 Geologist 39 Mount Talang 39 Shiveluch 39 ◆ M#.# quake 39 atmospheric sciences 39 famed Borobudur temple 39 geologist Jennifer Adleman 39 eruptive activity 39 seismogenic zone 39 Tumi geologist 39 Geological Sciences 39 paleoanthropologist 39 Hayward Fault 39 Geological 39 Richter Scale shook 39 tectonic 39 Sendai Honshu 39 crustal 39 Xiaodong Song 39 Sunda trench 39 paleontologist 39 NCEAS 39 Ilamatepec volcano 39 Carnegie Institution 39 NOAA oceanographer 39 Ryosuke Motani 39 Dujiangyan Sichuan province 39 Oremland 39 Quake Strikes Near 39 preliminary magnitudes 39 seismic waves 39 Larry Mastin USGS 39 Palm Springs Tramway 39 Wolong Panda reserve 39 Jack Boatwright seismologist 39 MD D.Phil 39 Naraha 39 Banyak Islands 39 Kavli Institute 39 Tropical Cyclone 39 Yushu Tibetan 39 Juan Cayupi 39 taught seismologist Raffaele 39 Lava spews 39 Weather Service forecaster 39 Frenzen 39 coastal inundation 39 Kaohsiung severed 39 Shinji Toda 39 Megathrust 39 Geographical Survey 39 tide gauges 39 earth crust 39 Cindy Thill 39 Manila Trench 39 Richter scale rattled 39 Mount Awu 39 aftershocks shook 39 Zeebe 39 Kelvin Berryman 39 volcanic tremor 39 Tohoku Kanto 39 Quake Jolts 39 Sukhyar 39 planetary astronomer 39 panda Xiao Xiao 38 Firestorms 38 magnitute 38 Pingwu county 38 Takashi Yokota 38 Sallenger 38 Eqecat 38 Earthquake Strikes 38 Observatory LDEO 38 atmospheric scientist 38 Mueser Rutledge 38 quake jolts 38 Vara Blanca 38 Anamizu near 38 Irvine criminologist 38 J. Klotzbach 38 David Wald seismologist 38 Archaeologist 38 Weather forecaster 38 NASA astrobiologist 38 Wolong panda reserve 38 Hear NPR 38 produce megaquake 38 Siberut 38 Zhao Heping 38 AIR Worldwide Corp. 38 California Seismographic Station 38 LONE PINE Calif. 38 #.# Magnitude Earthquake 38 palaeontologist 38 Chile Chaiten volcano 38 Planetary Science Institute 38 #.# magnitude tremor 38 Suruga Bay 38 Walter Arabasz 38 seismologically 38 Radiation leaking 38 Planetology 38 Earth tectonic plates 38 CalTech Seismological Laboratory 38 Skyscrapers swayed 38 Quake Rocks 38 Llaima volcano 38 Umnak Island 38 withstand earthquakes 38 MCEER 38 maritime archaeologist 38 accelerographs 38 Hiroshi Aida mayor 38 evolutionary geneticist 38 Benfield Hazard Research 38 Mount Sakurajima 38 hydrometeorological technician 38 stratovolcano 38 Seismic Zone 38 Enriquillo fault 38 Director Renato Solidum 38 Ludian 38 Accuweather.com meteorologist 38 crustal plates 38 Noaa 38 Stanford Synchrotron Radiation Lightsource 38 tornadic thunderstorms 38 NWS meteorologist 38 forecaster Richard Pasch 38 steam eruptions 38 Rychard Bouwens 38 Valerie Placide fled 38 Chuetsu 38 Jakobsdottir 38 seismologically active 38 Quake jolts 38 Iniki 38 Bruce Pressgrave geophysicist 38 www.usgs.gov 38 Evolutionary psychologist 38 Tyburczy 38 journal Nature Geoscience 38 tsunamis 38 lava spewing 38 Shinmoedake volcano 38 Quake Rattles 38 Cerro Pachón 38 seismically unstable 38 University Lamont Doherty 38 microearthquakes 38 Temblor 38 undersea quake 38 earthquake measuring 38 Chicxulub impact 38 Central Meteorological Observatory 38 Smoke drifted 38 Ramapo Fault 38 Adam Backlin 38 EQECAT 38 vulcanology 38 paleontology curator 38 deputy director Mali'u 38 geodynamic 38 earth tremor 38 Keck Observatory 38 subduction zone quake 38 deadliest peacetime maritime 38 Testalinden Creek 38 Cyclone Olaf 38 undersea volcanoes 38 Mount Lemmon Cafe 38 Geological Survey Cascades Volcanic 38 Puerco Canyon 38 official Yasuo Sekita 38 seismically active Aleutian Islands 38 snow Ergang 38 magnitude trembler 38 tectonically active 38 Dujiangyan southwestern 38 Gen Suwa 38 Sakurajima 38 Ecological Analysis 38 Esther Belizaire 38 Aftershocks shook 38 Loma Prieta Earthquake 38 principal investigator 38 Augustine Volcano 38 Enzo Boschi 38 Vanuatu archipelago 38 Typhoon Usagi 38 Quake triggers 38 Bengkulu Sumatra 38 volcano Katla 38 Tad Pfeffer 38 Brophy P.Geo 38 Daniel Geschwind 38 Earthscope 38 Geophysical Sciences 38 volcanic tremors 38 victims Krassy 38 Quake Hits 38 hasty burials 38 Jake Lowenstern 38 Moderate quake jolts 38 Leonard Kalindekafe 38 NIWA scientist 38 Sutiono 38 formed Tangjiashan lake 38 Observatory LIGO 38 Noto Peninsula 38 AVENUE OVERPASS Oshkosh 38 fisheries ecologist 38 seismically active fault 38 Ichinoseki 38 Genkai island 38 Labuha 38 reporter Shu Qian 38 atmospheric physicist 38 AltaRock 38 seismologist Clive 37 Genwal mine 37 Roni Alberto 37 Aftershock Hits 37 Explosive eruptions 37 TheWeatherSpace.com 37 granitoid rocks 37 Kasatochi volcano 37 Enriquillo Garden 37 damaged Fukushima Dai 37 slept crumpling 37 Longmenshan 37 Ofunato Iwate prefecture 37 Nadi Tropical Cyclone 37 Emergency Office ONEMI 37 unreinforced masonry 37 telescope atop Mauna 37 Hegerl 37 CU Boulder Laboratory 37 Oregon Interagency Dispatch 37 Redoubt volcano 37 plate tectonics 37 Bandah Aceh Indonesia 37 Earthquake Preparedness 37 Yumei Wang 37 Renato Solidum Jr. 37 Scott Ausbrooks 37 MIT postdoctoral researcher 37 Etau heads 37 Meteorology forecaster 37 typhoon Songda 37 outcrop stripping 37 Koeberl 37 Earthquake magnitudes 37 Jeffrey Kargel 37 Yellowstone Caldera 37 Lead researcher 37 Enola Ark. 37 Sinabung 37 Geohazards 37 Winston Seiler 37 Yellowstone caldera 37 west Enriquillo Fault 37 Nabelek 37 volcanic gases 37 triggering mudslides 37 John Bargmann FGS 37 Cumbre Vieja volcano 37 Utah seismograph stations 37 supervolcano eruption 37 tectonic faults 37 Volcanology 37 McKay planetary scientist 37 Curanipe 37 Karakocan town 37 #.# Magnitude Quake 37 unleashing torrential rains 37 southcentral Alaska 37 magnitude tremblor 37 hydro geologist 37 Sinadinovski 37 Grimsvötn 37 Serrana mountain 37 tidal gauges 37 tsumani 37 southbound Caltrain 37 Alquist Priolo 37 Quake Hits Off 37 Hubble astronomer 37 Alaska Augustine Volcano 37 Karangetang 37 Barry Hirshorn geophysicist 37 Samuel Oschin Telescope 37 Scripps Institution 37 Jurasevich 37 behavioral ecologist 37 Earthquake Hits 37 PNNL scientist 37 Sangihe Island 37 Icelandic Meteorological Office 37 Mount Karthala 37 threaten Samoa Tokelau 37 Seismological Observation Centre 37 Okmok 37 China Seismological Bureau 37 Warning Coordination Meteorologist 37 magnitude tremor 37 Ph.D. P.Eng 37 Seismologist Dale Grant 37 Robinson Crusoe Islands 37 OurAmazingPlanet 37 volcanically active 37 capital Port Vila 37 Roukes 37 Lifeguard Capt. 37 Associate Curator 37 earthquake jolted 37 seismic 37 shifting tectonic plates 37 professor Naj Meshkati 37 NIST physicist 37 Kuo Kai wen 37 tectonic plate dives 37 ONEMI 37 Onemi 37 seismicity 37 Swanton CalFire spokesman 37 bobbling downward 37 spews ash 37 structural engineer 37 Terrestrial Magnetism 37 theoretical astrophysicist 37 Pavlof 37 Spinrad 37 Buesseler 37 cosmic microwave radiation 37 Icelandic meteorological 37 Bandah Aceh 37 Vicente Nunez 37 CHRONOLOGY Major 37 hypocenter 37 Celebes Sea 37 Natawidjaja 37 chemical oceanography 37 Thirteen temblors 37 geosciences 37 Geological Society 37 Thiemens 37 radiocarbon dated 37 geoarchaeologist 37 Haraldur Sigurdsson 37 tectonically 37 Yellowstone supervolcano 37 Mt Merapi