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A year before the common era is entered with a minus sign, so 44 BCE is minus 44.Show This YearSelect all 1781257 Samalas Eruption (Wikipedia)Wikipedia1 link1755 Lisbon Earthquake (Wikipedia)Wikipedia1 link1811-1812 New Madrid Earthquakes (Wikipedia)Wikipedia1 link1815 Eruption of Mount Tambora (Wikipedia)Wikipedia1 link1883 Eruption of Krakatoa (Wikipedia)Wikipedia1 link1902 Eruption of Mount Pelee (Wikipedia)Wikipedia1 link1906 San Francisco Earthquake (Wikipedia)Wikipedia1 link1960 Valdivia Earthquake (Wikipedia)Wikipedia1 link1964 Alaska Earthquake (Wikipedia)Wikipedia1 link1980 Eruption of Mount St. Helens (Wikipedia)Wikipedia1 link1991 Eruption of Mount Pinatubo (Wikipedia)Wikipedia1 link2004 Indian Ocean Earthquake and Tsunami (Wikipedia)Wikipedia1 link2010 Haiti Earthquake (Wikipedia)Wikipedia1 link2011 Tohoku Earthquake and Tsunami (Wikipedia)Wikipedia1 link2018 Lower Puna Eruption (Wikipedia)Wikipedia1 link2018 Sulawesi Earthquake and Tsunami (Wikipedia)Wikipedia1 linkAlexandre Brongniart (Wikipedia)Wikipedia1 linkAlfred Wegener (Wikipedia)Wikipedia1 linkAndrija Mohorovicic (Wikipedia)Wikipedia1 linkAnthropocene (Wikipedia)Wikipedia1 linkApatite (Wikipedia)Wikipedia1 linkArmero Tragedy (Wikipedia)Wikipedia1 linkAsthenosphere (Wikipedia)Wikipedia1 linkAtlas Relation VocabularySources1 linkAtmospheric Circulation (Wikipedia)Wikipedia1 linkBeaufort Scale (Wikipedia)Wikipedia1 linkBeno Gutenberg (Wikipedia)Wikipedia1 linkCarbon Cycle (Wikipedia)Wikipedia1 linkCarboniferous (Wikipedia)Wikipedia1 linkCatastrophism (Wikipedia)Wikipedia1 linkCenozoic (Wikipedia)Wikipedia1 linkCharles Lyell (Wikipedia)Wikipedia1 linkCharles Richter (Wikipedia)Wikipedia1 linkChicxulub Crater (Wikipedia)Wikipedia1 linkClarence Dutton (Wikipedia)Wikipedia1 linkClimatology (Wikipedia)Wikipedia1 linkContinental Drift (Wikipedia)Wikipedia1 linkCore-Mantle Boundary (Wikipedia)Wikipedia1 linkCorundum (Wikipedia)Wikipedia1 linkDevonian (Wikipedia)Wikipedia1 linkDiagenesis (Wikipedia)Wikipedia1 linkDust Bowl (Wikipedia)Wikipedia1 linkEconomic Geology (Wikipedia)Wikipedia1 linkEdiacaran (Wikipedia)Wikipedia1 linkEl Nino Southern Oscillation (Wikipedia)Wikipedia1 linkEngineering Geology (Wikipedia)Wikipedia1 linkEnvironmental Geology (Wikipedia)Wikipedia1 linkEnvironmental Health (Wikipedia)Wikipedia1 linkErosion (Wikipedia)Wikipedia1 linkEruption of Mount Vesuvius in 79 AD (Wikipedia)Wikipedia1 linkEunice Newton Foote (Wikipedia)Wikipedia1 linkFault, Geology (Wikipedia)Wikipedia1 linkFeldspar (Wikipedia)Wikipedia1 linkFluorite (Wikipedia)Wikipedia1 linkFold, Geology (Wikipedia)Wikipedia1 linkFrancis Beaufort (Wikipedia)Wikipedia1 linkFujita Scale (Wikipedia)Wikipedia1 linkGabbro (Wikipedia)Wikipedia1 linkGeochemistry (Wikipedia)Wikipedia1 linkGeochronology (Wikipedia)Wikipedia1 linkGeodesy (Wikipedia)Wikipedia1 linkGeologic Time Scale (Wikipedia)Wikipedia1 linkGeology (Wikipedia)Wikipedia1 linkGeomorphology (Wikipedia)Wikipedia1 linkGeophysics (Wikipedia)Wikipedia1 linkGeorges Cuvier (Wikipedia)Wikipedia1 linkGeosyncline (Wikipedia)Wikipedia1 linkGlaciation (Wikipedia)Wikipedia1 linkGlacier (Wikipedia)Wikipedia1 linkGlaciology (Wikipedia)Wikipedia1 linkGranite (Wikipedia)Wikipedia1 linkGreenhouse Effect (Wikipedia)Wikipedia1 linkGulf Stream (Wikipedia)Wikipedia1 linkGypsum (Wikipedia)Wikipedia1 linkHalite (Wikipedia)Wikipedia1 linkHarry Hess (Wikipedia)Wikipedia1 linkHematite (Wikipedia)Wikipedia1 linkHolocene (Wikipedia)Wikipedia1 linkHurricane Katrina (Wikipedia)Wikipedia1 linkHydrogeology (Wikipedia)Wikipedia1 linkHydrology (Wikipedia)Wikipedia1 linkInge Lehmann (Wikipedia)Wikipedia1 linkIsostasy (Wikipedia)Wikipedia1 linkJames Hutton (Wikipedia)Wikipedia1 linkJohn Tuzo Wilson (Wikipedia)Wikipedia1 linkKarst (Wikipedia)Wikipedia1 linkKevin C. 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