Earthquakes Around the World Tiffany Imbus Jen Juris Kelly Stachler

Earthquakes When do earthquakes occur? When do earthquakes occur? Why do earthquakes occur? Why do earthquakes occur? Where do earthquakes occur? Where do earthquakes occur? How do you notice when an earthquake is occurring? How do you notice when an earthquake is occurring?

When Do Earthquakes Occur? Earthquakes cannot be predicted but scientists are working on it Earthquakes cannot be predicted but scientists are working on it Earthquakes happen in both day and night Earthquakes happen in both day and night

Why Do Earthquakes Occur? Pieces of the crust of the earth suddenly shift Pieces of the crust of the earth suddenly shift Vibrations (seismic waves) travel outward in all directions 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 Earthquakes happen along fault lines in the earths crust and on plate edges Most occur along the edge of the oceanic and continental plates 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 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 Gentle shaking of the ground Hanging plants swaying or objects wobbling on shelves Hanging plants swaying or objects wobbling on shelves Low rumbling noise Low rumbling noise Feel a sharp jolt Feel a sharp jolt

Map of Major World Earthquakes

Mexico, Facts Location: Pacific Coast of Mexico, damage concentrated in Mexico City Location: Pacific Coast of Mexico, damage concentrated in Mexico City Date: September 19, 1985 Date: September 19, 1985 Time: 7:17 AM Time: 7:17 AM Richter Scale Reading: 8.1 Richter Scale Reading: 8.1 After Effects: After Effects: Aftershock Reading: 7.5Aftershock Reading: 7.5 Two meter high tsunamiTwo meter high tsunami

Mexico, Damage Number who felt the quake: 20 million Number who felt the quake: 20 million Fatalities: 10,000Fatalities: 10,000 Injuries: 50,000Injuries: 50,000 Number of people left homeless: 250,000Number of people left homeless: 250, buildings destroyed – including hotels, hospitals, schools, businesses 800 buildings destroyed – including hotels, hospitals, schools, businesses Cost to repair damages: $5 billion Cost to repair damages: $5 billion

Mexico, 1985 – Not the First In the 20 th century, 35 earthquakes have occurred in this area prior to 1985 with a magnitude greater than 7.0 In the 20 th century, 35 earthquakes have occurred in this area prior to 1985 with a magnitude greater than earthquake was not a surprise 1985 earthquake was not a surprise Epicenter located between the states Michoacan and GuerreroEpicenter 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 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 West coast of southern Mexico is a very active seismic zone Cocos Plate submerges beneath the North American Plate which causes earthquakes to occur Cocos Plate submerges beneath the North American Plate which causes earthquakes to occur

The World’s Largest Earthquake Southern Chile Southern Chile May 22, 1960 May 22, 1960 Magnitude of 9.5 Magnitude of 9.5 Over 2,000 people killed Over 2,000 people killed About 3,000 people injured About 3,000 people injured 2,000,000 people homeless 2,000,000 people homeless $550 million in damage $550 million in damage

Effects on Other Countries Tsunami caused: Tsunami caused: 61 deaths and $75 million in damage in Hawaii61 deaths and $75 million in damage in Hawaii 138 deaths and $50 million in damage in Japan138 deaths and $50 million in damage in Japan 32 dead and missing in the Philippines32 dead and missing in the Philippines $500,000 in damage done to west coast of United States$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… Tsunami Destruction at Hilo, Hawaii

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