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(Click for frequent words.) 69 vulcanology 62 seismology 60 vulcanologist 60 Syamsu Rizal 60 volcano observatory 60 volcanology institute 60 Volcanology 58 Agus Budianto 58 volcanologist 58 Umar Rosadi 58 volcanology center 58 meteorology 57 Subandrio 57 Saut Simatupang 56 Hugo Yepes 56 Haraldur Sigurdsson 56 volcanic activity 55 Triyani 55 volcano 55 Juan Cayupi 55 Hawaiian Volcano Observatory 54 Mount Soputan 54 volcanologists 54 Ratdomopurbo 54 Syahnan 54 BMKG 54 Geological Disaster Mitigation 54 eruptive activity 54 Vulcanologist 54 Subandriyo 54 seismological 53 Meteorology Climatology 53 Surono 53 PHIVOLCS 53 BPPTK 53 Phivolcs 53 Vulcanology 52 Geological Hazard Mitigation 52 Volcanologist 52 Ed Laguerta 52 volcanoes 52 Mount Karangetang 52 Gerasimos Papadopoulos 52 Mount Semeru 52 Cascades Volcano Observatory 52 seismicity 51 stratovolcano 51 Tumi Gudmundsson 51 Volcanologists 51 glaciology 51 geological sciences 51 Nevada Seismological Laboratory 51 meteorology climatology 51 GNS Science 51 volcano eruptions 51 Sutiono 50 Mount Awu 50 Merapi volcanology 50 Geophysics Agency BMKG 50 Seismology 50 climatology 50 dormant volcano 50 tectonics 50 geodynamics 50 Sri Woro 50 Karangetang 50 Chris Waythomas 50 Roger Bilham 50 Indonesian Meteorology 50 Seismological 50 Sangihe Island 50 Alaska Fairbanks Geophysical 50 Montserrat Volcano Observatory 50 Seismologist 50 pyroclastic flows 49 Yellowstone caldera 49 Seismology PHIVOLCS 49 Mount Gamkonora 49 atmospheric sciences 49 Mount Talang 49 Suharjono 49 Jim Kauahikaua 49 geology 49 geohazard 49 Philvolcs 49 paleoclimatology 49 vulcanology office 49 volcanic 48 geochronology 48 Sangihe island 48 Sakurajima 48 Seismological Bureau 48 Montserrat volcano 48 seismologist 48 Nyiragongo 48 Vulcanologists 48 geodynamic 48 Renato Solidum Jr. 48 Giorgos Stavrakakis 48 Purbo 48 Seismology Phivolcs 48 meteorological 48 seismic activity 48 USGS geologist 48 Celestin Kasereka 48 Nankai Trough 48 Soufrière Hills Volcano 48 Heasler 48 Mt Merapi 48 Sukhyar 48 vulcanologists 48 geodesy 48 Grimsvötn 48 planetary geologist 48 tectonic earthquakes 48 Ambae Island 48 Siagian 48 hydrometeorological 48 Fauzi seismologist 48 Icelandic meteorological 48 Mount Kelut 48 Syamsul Rizal 48 Llaima 48 Sciences LIPI 48 Mount Egon 48 Hernando Tavera 48 volcanism 48 Renato Solidum 48 fissure eruption 48 USGS 48 Kelud 47 geomorphology 47 Explosive eruptions 47 BNPB 47 geosciences 47 Galeras 47 marine geophysicist 47 hydrometeorology 47 Jody Bourgeois 47 Meteorological 47 Michael Studinger 47 Soufriere Hills Volcano 47 eruption 47 Tumi geologist 47 geophysics 47 Volcanological 47 geological disasters 47 eruptions 47 paleontology 47 Widi Sutikno 47 volcanos 47 Japan Meteorological Agency 47 volcanic crater 47 Mariana Arc 47 Sleman district 47 Volcano Observatory 47 Galeras volcano 47 Merapi volcano 47 Carolyn Driedger 47 Tropical Meteorology Project 47 Dr. Purbo 46 glacial geology 46 Geophysics Agency BMG 46 volcano crater 46 Mount Kelud 46 Takashi Yokota 46 fumaroles 46 volcanic tremors 46 Gamburtsev 46 volcanic gases 46 Natural Hazards 46 volcanic eruptions 46 mud volcanoes 46 Tharsis Rise 46 Geophysics Institute 46 Director Renato Solidum 46 geophysicist 46 Ahmad Zakir 46 Kuo Kai wen 46 Konrad Steffen 46 Larry Mastin USGS 46 Shinmoedake 46 PTWC 46 Danny Hilman Natawidjaja 46 Jim Kauahikaua scientist 46 lava flows 46 Lake Vui 46 extinct volcanoes 46 Budi Waluyo 46 Shanghai Astronomical Observatory 46 Geological Survey 46 Geophysics 46 Geological Survey volcanologist 46 Indonesian volcanology agency 46 erupt explosively 46 geohazards 46 volcanic mudflows 46 lava flow 46 atop Mauna Kea 46 submarine volcanoes 46 Seismological Observatory 46 ONEMI 46 Leonard Kalindekafe 46 Vladimir Romanovsky 46 Geophysical Institute 46 Dzurisin 46 Geoscience Australia 46 supervolcano 45 geological 45 Onemi 45 Chukchi Cap 45 Mt Pinatubo 45 hazardous eruption 45 Jacques Durieux 45 Aru Islands 45 Waleed Abdalati 45 flood basalts 45 planetary geology 45 Mount Unzen 45 USGS Cascades Volcano 45 Chaiten volcano 45 Merapi 45 active volcanoes 45 chemical oceanography 45 rumbling volcano 45 Seismology Laboratory 45 volcano spewed 45 volcano observatories 45 volcanic tremor 45 Heru Aji Pratomo 45 Alaska Volcano Observatory 45 Sugiono 45 Shiveluch 45 Cryospheric Sciences Branch 45 paleoanthropology 45 Tom Brocher 45 geomagnetism 45 Geology 45 observational astronomy 45 Mount Karthala 45 Kelut 45 biological oceanography 45 neutrino physics 45 Budianto 45 Grimsvötn volcano 45 Meteorology Geophysics 45 supervolcanoes 45 Samarendra Karmakar 45 Gerard Fryer 45 Mustafa Erdik 45 Michael Blanpied 45 Mount Rinjani 45 agency GNS Science 45 magma dome 45 Ecuador Geophysics 45 hydro meteorological 45 Gadjah Mada University 45 Kilauea summit 45 CU Boulder geological 45 Mount Sinabung 45 undersea volcanoes 45 seismologists 45 Mount Tambora 45 geologically active 45 Glaciologist 44 Tumi Gudmundsson geologist 44 Seismological Service 44 volcanic eruption 44 Game McGimsey 44 Mount Anak Krakatau 44 lava 44 Kilauea Volcano 44 lava spewing 44 Padang Panjang 44 Karthala 44 Rene Solidum 44 Eyjafjallajökull glacier 44 World Meteorological Organisation 44 Mauna Loa volcano 44 astronomy 44 paleoecologist 44 spokesman Hari Tirto 44 Victor Sardina 44 Geophysical Observatory 44 Mount Mazama 44 GeoNet 44 Agustinus doctor 44 extinct volcano 44 observatory 44 pyroclastic flow 44 Halmahera island 44 Seismological Laboratory 44 China Seismological Bureau 44 geoscience 44 Disaster Mitigation Agency 44 Peter Frenzen 44 geologist 44 Jakobsdottir 44 Soufriere Hills volcano 44 Franco Barberi 44 Kelvin Berryman 44 seismic tremors 44 Pinatubo eruption 44 petroleum geoscience 44 Seismic Network 44 Volcanological Research 44 geomorphologist 44 Iceland Meteorological 44 spews ash 44 Sergei Cheremnov spokesman 44 Earthquake Hazards 44 IfA 44 USArray 44 caldera 44 Atmospheric Physics 44 MCEER 44 astrophysics 44 sedimentary geology 44 Ilamatepec volcano 44 particle astrophysics 44 Volcanic Observatory 44 Mount Katla 44 Chaiten Volcano 44 Rolf Kudritzki 44 Chaitén volcano 44 palaeontology 44 seismographic 44 Llaima volcano 44 Grímsvötn 44 Geological Survey CGS 44 Lamont Doherty 44 Seismology Lab 44 Kirishima range 44 meterological 44 Atmospheric Oceanic 44 Volcanic 43 Cascade Volcano Observatory 43 atmospheric oceanic 43 CIRES 43 lava domes 43 Utah Seismograph Stations 43 Earthscope 43 geologic hazards 43 erupting lava 43 Icelandic Met 43 Simatupang 43 Icelandic volcanologist 43 Mount Manaro 43 Nevado del Huila volcano 43 lava flowing 43 Pacific Northwest Seismograph 43 Seismicity remains 43 Tambora 43 Bramley Murton 43 Tungurahua 43 LIPI 43 Halemaumau 43 Jupiter moon Io 43 Jessica Sigala 43 lahars 43 mud volcano 43 NCEAS 43 theoretical astrophysics 43 Yellowstone Volcano Observatory 43 Meteorology 43 Anak Krakatau 43 metrological 43 Dan Dzurisin 43 geoscientific 43 InSAR 43 Cumbre Vieja 43 active volcanos 43 spew lava 43 petrology 43 harmonic tremor 43 Fimmvorduhals volcano 43 meteorite impacts 43 Augustine Volcano 43 Karmila Parakkasi 43 karst 43 Steward Observatory 43 Bulusan Volcano 43 geology paleontology 43 USGS seismologist 43 Magnus Tumi Gudmundsson 43 Suhardjono 43 lava extrusion 43 coordination meteorologist 43 Athens Geodynamic Institute 43 Zaman Chaudhry 43 Raymundo Punongbayan 43 geomicrobiology 43 ashfall 43 turbidites 43 detritus perched 43 Mary Lou Zoback 43 Nathaniel Cruz 43 geoscientist 43 Geophysics Agency 43 Tangkuban Perahu 43 Kermadec Arc 43 numerical modeling 43 planetary science 43 Prof. Shakeel Romshoo 43 elementary particle physics 43 megathrust 43 David Wald seismologist 43 volcanic plume 43 Cangkringan 43 Kristin Vogfjord geologist 43 Jukes Nunez 43 planetary scientist 43 Mount Bromo 43 Georg Kaser 43 Walter Arabasz 43 SwRI Space 43 Geological Survey Hawaiian Volcano 43 Lake Toba 43 Geological 43 Wolong Panda reserve 43 Siau island 43 medieval archeology 43 paleoecology 43 Bambang Dwiyanto 42 volcano spews ash 42 Waverly Person 42 Syaiful Bahri 42 Arnel Capili 42 Tungurahua volcano 42 Meteorological Agency 42 Emile Okal 42 Halemaumau crater 42 Resident volcanologist 42 Earthquake Hazards Program 42 Ambae 42 geochemists 42 geoinformatics 42 biogeochemistry 42 marine sediments 42 official Kazuya Kokubo 42 Colima volcano 42 Mount Stromlo Observatory 42 Puu Oo 42 geologists 42 Gorontalo province 42 planetary astronomer 42 Hiroo Kanamori 42 volcanic earthquakes 42 International Geosphere Biosphere 42 Abdalati 42 Eyjafjoell 42 subduction earthquake 42 USGS volcanologist 42 volcano eruption 42 lava flowed 42 deadliest volcanos 42 John Cangialosi 42 rumbling Mount Merapi 42 Kevin Trenberth climate 42 Solidum 42 volcanologist Renato Solidum 42 Roger Musson 42 Sarychev Peak 42 Siberian Traps 42 Bromo 42 Edi Susanto 42 earthquakes 42 Shatsky Rise 42 Geological Surveys 42 cinder cones 42 Astromaterials Research 42 Takeshi Hachimine 42 intraplate 42 Subrandrio 42 Pu'u O'o crater 42 Merapi eruptions 42 Geological Survey Cascades Volcanic 42 Geophysicist 42 volcano Krakatoa 42 director Mali'u Takai 42 Philippines Mayon volcano 42 Mary Voytek 42 cryosphere 42 Geological Survey BGS 42 Yellowstone Caldera 42 Kepulauan Mentawai region 42 lava fountains 42 palaeontologist 42 astronomical observatory 42 tectonic faults 42 Physique du Globe 42 Chip Groat 42 Ken Gledhill 42 USGS Hawaiian Volcano 42 Disaster Mitigation 42 Mohammad Javad Fadaei deputy 42 computational neuroscience 42 volcano erupted 42 Einar Kjartansson geophysicist 42 Kauahikaua 42 Geochemistry 42 hydrothermal activity 42 Anatahan 42 Seismological Centre 42 Sleman regency 42 Professor Ove Hoegh 42 Mark Serreze 42 Victor Sardina geophysicist 42 calderas 42 NBRO 42 Grimsvoetn 42 Ken Hudnut 42 Prasad Gogineni 42 steam eruptions 42 Geosciences 42 explosive eruptions 42 Earthquake Prediction 42 Walter Arabasz director 42 provincial seismological bureau 42 volcanologist Surono 42 Garae 42 Alan Robock 42 Geir Braathen 42 Cascadia Subduction Zone 42 Manchester Jodrell Bank 42 Lava flows 42 cinder cone 42 seismology lab 42 Seismographic 42 Volker Liebig ESA 42 Richard Knabb hurricane 42 Melonguane 41 cryovolcanism 41 Ted Scambos glaciologist 41 tectonic plate boundary 41 Bruce Presgrave geophysicist 41 vulcanologist Surono 41 observational cosmology 41 atmospheric chemistry 41 capital Port Vila 41 paleobotany 41 metrological department 41 Sardjito 41 aftershocks measuring 41 Syrtis Major 41 Kilauea caldera 41 Geological Survey USGS 41 Lick Observatory 41 quakes 41 Geological Sciences 41 Geophysical Laboratory 41 Geophysicists 41 Active Tectonics 41 Mount Sakurajima 41 Weather Prediction 41 volcanologist Agus Budianto 41 Shikoku islands 41 seismological observatory 41 Mount Asama 41 Iceland Eyjafjallajökull 41 Yogyakarta ANTARA News 41 Sumatran earthquake 41 CU Boulder ecology 41 undersea volcano 41 Walt Meier 41 climatology meteorology 41 seismograph stations 41 Carl Pilcher 41 Explosive eruptions shook 41 Stephane Mazzotti 41 Talang 41 paleoclimatologists 41 geologist Jennifer Adleman 41 lava oozed 41 Geologists 41 Keck Observatory 41 Klyuchevskaya Sopka 41 Transantarctic Mountains 41 Anatahan volcano 41 Geological Survey seismologist 41 Mount Erebus 41 Synolakis 41 Jan Pretel head 41 Dante Lauretta 41 Siberut island 41 mudflows 41 Earthquake Engineering 41 Grimsvotn 41 Disaster Prevention 41 Sierra Negra 41 Sulawesi island chain 41 volcano Mount Merapi 41 Seismicity 41 Mineral Industries DOGAMI 41 Volcano Disaster Assistance 41 Planetary Physics 41 Earthquake Hazards Project 41 sedimentology 41 Geologic Survey 41 Mauna Loa Observatory 41 Aberdeen Oceanlab 41 Mount Merapi volcano 41 Caltech Seismological Laboratory 41 Steinunn Jakobsdottir geophysicist 41 Ilamatepec 41 Dr. Marcia McNutt 41 glaciological 41 marine geologist 41 Pan STARRS 41 Danum Valley 41 ICRAF 41 Merapi eruption 41 Oldonyo Lengai 41 Fenglin Niu 41 Seismologists 41 Bering Glacier 41 Tsunami Warning Centre 41 Qinghai Tibetan plateau 41 Grimsvoetn volcano 41 magmatic 41 Pavlof 41 Barbara Carby 41 Prayitno 41 Earthquake Information 41 seismological bureau 41 geochemist 41 Thure Cerling 41 Geodynamic Institute 41 GNS Science GeoNet 41 Geomorphology 41 Dennis Mileti 41 Geophysicist Pall Einarsson 41 crustal 41 Lembang 41 Okmok 41 Chile Chaiten volcano 41 Mike Morwood 41 Arenal volcano 41 Vladimir Keilis Borok 41 paleobiologist 41 biometeorology 41 anthropology archeology 41 seismological institute 41 undersea earthquakes 41 subduction zone earthquake 41 Sierra Negra volcano 41 Kitt Peak 41 glaciologist 41 Grimsvotn volcano accompanied 41 volcano sedimentary sequences 41 Eyjafjallajökull volcano 41 Soputan 41 hydrogeology 41 INAM 41 undersea quake 41 Syun Ichi Akasofu 41 seismologist Lucy Jones 41 Geological Survey geophysicist 41 accelerographs 41 Maria Zuber 41 Eyjafjallajokull Volcano 41 INCOIS 41 tectonic activity 41 geologic 41 cosmology 41 Norwegian Polar 41 Grimsvotn eruption 41 remote sensing 41 Jay Lawrimore 41 Atmospheric Sciences 41 plate tectonics 41 Roshydromet 40 Schellart 40 Barry Hirshorn geophysicist 40 Heru Nogroho spokesman 40 seismological laboratory 40 methane hydrate 40 Scott Kardel 40 geo informatics 40 Berkeley Geochronology Center 40 Niels Bohr Institute 40 geohazard assessment 40 Peter Hoeppe 40 Saumlaki 40 Verosub 40 Sugata Hazra 40 systematics 40 Banjarnegara 40 Mayon volcano 40 lava dome 40 Umnak Island 40 Geological Survey geologist 40 Semeru 40 Mount Bulusan 40 CfA 40 paleobiologists 40 Earth Observation Programmes 40 Roman Vilfand 40 nanomechanics 40 UC Observatories Lick 40 volcanic peaks 40 Padang Sumatra 40 several volcanos smoldering 40 Gakkel Ridge 40 Geoscientist 40 Mount Nyamulagira 40 Rupa Kumar Kolli 40 Rosaly Lopes 40 magma chambers 40 Benfield Hazard Research 40 volcanic quakes 40 seismography 40 Peru Geophysics 40 hydrology geology 40 Mount Spurr 40 earth tremors 40 Gene Kritsky 40 High Altitude Observatory 40 NCAR scientist 40 Czech Hydrometeorological Institute 40 Martian craters 40 Safari Dwiyono 40 Jane Ferrigno 40 Newberry Volcano 40 computational sciences 40 Barry Hirschon 40 Talaud 40 archeology geology 40 Shea Penland 40 Pacific Tsunami Warning 40 Cumbre Vieja volcano 40 QUITO Ecuador Ecuador Tungurahua 40 National Seismograph Network 40 Champerico 40 Anatahan Volcano 40 geochemistry 40 Dr Brian Baptie 40 Sibolga Sumatra 40 Rinjani 40 Geographical Survey 40 Kaliadem 40 Fimmvorduhals 40 Deccan Traps 40 geologist Magnus Tumi 40 Katla volcano 40 Indonesia Mount Kelud 40 Alaska Tsunami Warning 40 Venkatanathan 40 vertebrate fossil 40 observatories 40 Pu'u O'o 40 GK Mohanty 40 BN Goswami 40 ash billowing 40 geophysicists 40 explosivity 40 Geodesy 40 Jay Lawrimore chief 40 glacier 40 astrobiological 40 groundwater hydrology 40 Julie Brigham Grette 40 Merapi Volcano 40 Giampaolo Giuliani 40 volcano erupts 40 Pavonis Mons 40 Manam Island 40 Central Meteorological Observatory 40 Eyjafjoell volcano 40 microwave remote sensing 40 Andreanof Islands 40 Jeffrey Kargel 40 Sunarto 40 belched ash 40 Karakocan town 40 Laser Interferometer Gravitational Wave 40 Yumei Wang 40 Nasa Goddard Institute 40 Wenchuan quake 40 seismology institute 40 Sumatra Andaman earthquake 40 Linda Elkins Tanton 40 Qamaruz Zaman 40 Sinabung 40 Cindy Ebinger 40 Eruptions 40 Kilauea volcano 40 Particle physics 40 Mount Merapi spews 40 Moment Magnitude scale 40 Chazy Reef 40 volcano erupting 40 Disaster Management 40 Synthesis NCEAS 40 Lake Cheko 40 Mayon 40 INGC 40 John Bellini geophysicist 40 Paleoclimate 40 archeology 40 PS Goel 40 hydrography 40 Nankai trough 40 Eyjafjallajokul volcano 40 underwater volcanos 40 Pitoyo 40 Jedicke 40 Grímsvötn volcano 40 J. Klotzbach 40 Tropical Meteorology Pune 40 Zhao Heping 40 Mount Ruapehu 40 Qinghai Tibet Plateau 40 Mount Merapi 40 NGRI 40 Lori Dengler 40 lahar flows 40 Antarctic Dry Valleys 40 NASA astrobiology 40 Jan Zalasiewicz 40 subduction zones 40 Iceland geophysicist Pall 40 asteroseismology 40 Climatology 40 Cordillera Blanca 40 Vernon Kousky NOAA 40 Olympus Mons 39 Jay Melosh 39 Andrew Glikson 39 Shinmoedake volcano 39 Kandilli Observatory 39 Sihar Simanjuntak 39 GLOF 39 Sunset Crater 39 Climate Impacts Group 39 Seafloor Mapping Laboratory 39 hydrothermal venting 39 volcanically active 39 astrophysical phenomena 39 Bulusan volcano 39 temperamental Soufriere Hills 39 Priyadi 39 Sleman 39 AB Mazumdar 39 Montserrat Soufriere Hills 39 Elin Jonasdottir forecaster 39 glacial melting 39 volcanic islands 39 radar altimetry 39 Geographical Sciences 39 Winston Seiler 39 Luann Becker 39 Chicxulub 39 GFZ 39 El Chichon 39 planetary sciences 39 Meteoritics 39 KNMI 39 unstable lava dome 39 Kasatochi volcano 39 mineralogist 39 Utah seismograph stations 39 Nolan Doesken 39 Ted Scambos 39 Raharjo 39 Environmental Prediction 39 Harley Benz 39 paleomagnetic 39 Meterological 39 Priyadi Kardono spokesman 39 Gino Casassa 39 Imiloa Astronomy Center 39 Weather Forecasting 39 CVV Bhadram 39 volcanoclastic rocks 39 official Salamun 39 Donald Johanson 39 Julienne Stroeve 39 IUCN Species Programme 39 Suhardjono senior 39 Earth Observatory 39 Edi Sunardi 39 Roland Burgmann 39 National Astronomical Observatories 39 seismographs 39 Geoscience 39 Andreas Schild 39 Stephen Thorsett 39 Kinahrejo village 39 limnology 39 RS Ophiuchi 39 Anamizu near 39 Stuart Sipkin 39 Tibetan Plateau 39 Siberut 39 George Seielstad 39 paleobiology 39 Submillimeter Array 39 volcano spews lava 39 Okmok Volcano 39 Jonathan Overpeck 39 Dan Buhl Planetarium 39 Rene Heroux 39 spokesman Pajiliai Dobui 39 tectonic movements 39 Meteorological Observatory 39 Tianshan Mountains 39 paleoclimate 39 meteorological oceanographic 39 Tad Pfeffer 39 Sinjai 39 Bui Minh Tang 39 geology botany 39 Vulcanological Research 39 Deke Arndt 39 crustal deformation 39 Alaska Augustine Volcano 39 Priyadi Kardono 39 Redoubt Volcano 39 tsunamis 39 underwater archeology 39 Jennifer Heldmann 39 crater 39 Sardjito hospital 39 Thomas Sobakam chief 39 Jose Rubiera 39 Calderas 39 Chuetsu region 39 volcanic plumes 39 Cyberinfrastructure 39 Prasetyo Utomo 39 Sicily Mount Etna 39 physics astrophysics 39 Nyamulagira 39 Nankai Trough Zone 39 Mount Yasur 39 Indonesia Sulawesi island 39 Erik Asphaug 39 Jeremy Bailenson 39 volcanologist Ed Laguerta 39 Scientists Iceland Grimsvotn 39 spewed lava 39 NSIDC 39 University Lamont Doherty 39 Loihi 39 infrared astronomy 39 Gerard Fryer geophysicist 39 basalt 39 subduction fault 39 Jonathan Lunine 39 oceanography 39 Sarigan 39 Yellowstone supervolcano 39 RAINEX 39 Rognvaldur Olafsson 39 Krafla 39 Henry Heasler Yellowstone 39 cataclysmic eruption 39 Mount Mayon 39 atmospheric chemist 39 vertebrate palaeontology 39 Baldur Thorhallsson professor 39 Hoegh Guldberg 39 conclusions NASA Astrobiology 39 Halema'uma'u 39 Sardjito Hospital 39 astrophysical sciences 39 Simeulue 39 astrophysical 39 Imiloa 39 Tropical Cyclone Warning 39 cloud microphysics 39 Scripps Oceanography 39 Magelang 39 tide gauges 39 Costas Synolakis 39 Palaeocene Eocene Thermal Maximum 39 Turrialba volcano 39 limestone cave 39 Qaidam Basin 39 Conred 39 NASA Exobiology Program 39 basaltic rocks 39 INGV 39 Turkana Basin 39 CU Boulder physics 39 renowned astrophysics observatory 39 Mount Pinatubo eruption 39 Arenal Volcano 39 mineralogy 39 glaciologists 39 Bindschadler 39 Mathematical Sciences 39 geologist Dan Dzurisin 39 Lixion Avila 39 Mark Zoback 39 Carnegie Observatories 39 Kitt Peak National 39 palaeo