Tsunami di 2004 Fatti veloci

Ecco alcune informazioni di base su 2004 Tsunami nell'Oceano Indiano. A dicembre 26, 2004, un terremoto with an estimated magnitude of 9.1 ha colpito la costa di Sumatra, Indonesia.

National Centers for Environmental Information Statistics:
227,898 people were killed or listed as missing and presumed dead.
Material losses in the Indian Ocean region were $ 10 miliardi.


    Tsunamis are formed by a displacement of watera landslide, volcanic eruption, o, as in this case, slippage of the boundary between two of the earth’s tectonic platesslabs of rock 50 per 650 piedi (15 per 200 metri) thick that carry the Earth’s continents and seas on an underground ocean of much hotter, semi-solid material.
    The December 26, 2004 Indian Ocean tsunami was caused by slippage of about 600 miglia (1,000 chilometri) of the boundary between the India and Burma plates off the west coast of northern Sumatra. The convergence of other plates strains the area, and at the quake’s epicenter, the India plate is moving to the northeast at 2 pollici (5 centimeters) per year relative to the Burma plate. The aftershocks were distributed along the plate boundary from the epicenter to near Andaman Island.
      Il 9.1 magnitude earthquake was the strongest since the March 28, 1964 quake in Prince William Sound in Alaska. It was the third-strongest since 1900.
      The two stronger earthquakes, Maggio 22, 1960 in Chile (9.5) e marzo 28, 1964 in Alaska (9.2), also produced tsunamis.




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