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Download Map of Major World Earthquakes
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Earthquakes Around the World Tiffany Imbus Jen Juris Kelly Stachler Earthquakes When do earthquakes occur? Why do earthquakes occur? Where do earthquakes occur? How do you notice when an earthquake is occurring? When Do Earthquakes Occur? Earthquakes cannot be predicted but scientists are working on it Earthquakes happen in both day and night Why Do Earthquakes Occur? Pieces of the crust of the earth suddenly shift Vibrations (seismic waves) travel outward in all directions Where Do Earthquakes Occur? Earthquakes happen along fault lines in the earths crust and on plate edges Most occur along the edge of the oceanic and continental plates Occur where 2 plates are running into each other or sliding past each other Major Plates of the World How Do You Notice When an Earthquake is Occurring? Gentle shaking of the ground Hanging plants swaying or objects wobbling on shelves Low rumbling noise Feel a sharp jolt Map of Major World Earthquakes Mexico, 1985 - Facts Location: Pacific Coast of Mexico, damage concentrated in Mexico City Date: September 19, 1985 Time: 7:17 AM Richter Scale Reading: 8.1 After Effects: • Aftershock Reading: 7.5 • Two meter high tsunami Mexico, 1985 - Damage Number who felt the quake: 20 million • Fatalities: 10,000 • Injuries: 50,000 • Number of people left homeless: 250,000 800 buildings destroyed – including hotels, hospitals, schools, businesses Cost to repair damages: $5 billion Mexico, 1985 – Not the First In the 20th century, 35 earthquakes have occurred in this area prior to 1985 with a magnitude greater than 7.0 1985 earthquake was not a surprise • Epicenter located between the states Michoacan and Guerrero This area had previously been referred to as the “Michoacan Gap” but gap was filled by 1985 earthquake Mexico, 1985 – Why Here? West coast of southern Mexico is a very active seismic zone Cocos Plate submerges beneath the North American Plate which causes earthquakes to occur The World’s Largest Earthquake Southern Chile May 22, 1960 Magnitude of 9.5 Over 2,000 people killed About 3,000 people injured 2,000,000 people homeless $550 million in damage Effects on Other Countries Tsunami caused: • 61 deaths and $75 million in damage in Hawaii • 138 deaths and $50 million in damage in Japan • 32 dead and missing in the Philippines • $500,000 in damage done to west coast of United States Other Effects The violent eruption of the volcano Puyehue, which erupted two days after the earthquake, about 200km from the epicenter . Pictures of the Catastrophe Destruction in Valdivia and Puerto Montt More Photos…. 1960 Tsunami Destruction at Hilo, Hawaii Bibliography http://www.garfield.k12.ut.us/schools/ehs /msse/quakes/85mexqua.htm http://www.mapsofworld.com/worldmajor-earthquake.htm http://geology.er.usgs.gov/eastern/plates. html http://www.fema.gov/kids/quake.htm http://pubs.usgs.gov/gip/earthq1/ http://neic.usgs.gov/neis/eqlists/10maps_ world.html