Thursday, November 19, 2009

Tsunami Barrier


The ultimate defense for locally generated tsunamis is a tsunami barrier along the coast to protect villages, as has been implemented in parts of the Japanese coast, however, this is difficult for long featureless coastlines where it effectively demands the construction of a continuous marine dike.

Indian Seismicity Map








Earthquake Density Map of India

Average Number of Earthquakes per Year, Magnitude 5 and Greater : All Depths



Density Maps of Earthquake for the World

Depth 0 - 70 km 
Average Number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater, Depth 0 - 70 km

 





Depth 70 - 300 km


Average Number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater, Depth 70 - 300 km






Depth 300 km and greater


Average Number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater, Depth 300 km and greater








All Depths


Average Number of Earthquakes per Year per 12,300 km2, Magnitude 5 and Greater, All Depths





Tuesday, November 17, 2009

Energy released by an Earthquake


Earthquake of Azores Islands Region, November 04, 2009, Image


FIg: Map of ATLANTIC OCEAN

U.S Economic Learning from Wars


Friday, November 13, 2009

Earthquake Density Map of Chile


Seismic Hazard Map of Chile


Formation of Andes (Tectonic Cause)



Fig : Satellite image of the southern Andes
 


Fig :  Andes Mountain rang (portion of the Andes between Argentina and Chile)