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Earth Central Earth Central Earth Science has an Earth Science has an impact on our lives impact on our lives

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Earth Central. Earth Science has an impact on our lives. Earthquake & tsunami of December 26, 2004. Title : Waveforms from the Global Seismographic Network of the Sumatra-Andaman Islands Earthquake Contributed by : Rick Aster, Geophysics Program, New Mexico Tech - PowerPoint PPT Presentation

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Page 1: Earth Central

Earth CentralEarth Central

Earth Science has an impact Earth Science has an impact on our liveson our lives

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Earthquake & tsunami of December 26, 2004

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Title: Waveforms from the Global Seismographic Network of the Sumatra-Andaman Islands Earthquake Contributed by: Rick Aster, Geophysics Program, New Mexico Tech Text: The magnitude 9.0 earthquake near Sumatra on December 26, 2004 was one of the most significant seismic events on Earth during the past 100 years

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Aceh Province,Sumatra, Indonesia

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Close up ofAceh Province,

Sumatra, Indonesia(before and after

Dec. 26, 2004)

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Here are the pictures, in chronological order, before people realized how serious the situation was.

where is the ocean going?

wow, look atall this beach!

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first wave

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second wave

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a larger third wave breaking on the horizon?

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GIANT EARTHQUAKES 1960 - Chile, 9.5 magnitude 1964 - Alaska, 9.2 1957 - Alaska, 9.1 1952 - Russia, 9.0 2004 - Indonesia, 9.0 Megathrust earthquakes, like the Sumatra quake, often generate large tsunamis that cause damage over a much wider area than is directly affected by ground shaking near the earthquake's rupture.

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Globally, the number of people living within 100 km of the coast increased from roughly 2 billion in 1990 to 2.2 billion in 1995—39 percent of the world's population. (2004 World Resources Institute )

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Can it happen here?

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EarthquakesEarthquakes

Where do they occur?Where do they occur? Can they happen anywhere?Can they happen anywhere? What causes them?What causes them? How can we protect ourselves?How can we protect ourselves?