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12 mars 2011 6 12 /03 /mars /2011 02:19

March 11, 2011


Predicted tsunami wave heights

The tsunami set off warnings for much of the Pacific basin including the west coast of the United States and South America. Officials say waves have not caused major damage in Hawaii and pose no flooding danger in California.                     Source : NOAA Center for Tsunami Research, Pacific Marine Environmental Laboratory


Magnitude of shaking

An 8.9-magnitude earthquake struck the coast of Japan on Friday at a depth of about 17 miles below the earth's surface. Dozens of aftershocks, some of magnitude 6.0 or greater, were felt after the quake.                                     Source : U.S. Geological Survey

>>>   Damage reports in diverse places  (the New-York Times)

                           Seismicity-generated tsunamis :                         when tectonic earthquakes occur  beneath the sea, the water above the deformed area is displaced from its equilibrium position

http://upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Eq-gen4.jpg/120px-Eq-gen4.jpgSee how it works in wikipedia article

>>>  An interactive map

from The Guardian :

fault lines, tsunami warnings, epicentre of the first quake, aftermath...

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