Earthquake! An earthquake is the result of a sudden release of energy in the Earth's crust that creates seismic waves.When there is an earthquake,you should dive under a table to protect yourself from falling objects.You should also hold on to a table leg so that when the ground starts vibrating the table will not move away from you.VAN is a method of earthquake prediction proposed by Professors Varotsos, Alexopoulos and Nomicos in the 1980s; it was named after the researchers' initials. The method is based on the detection of "seismic electric signals" (SES) via a telemetric network of conductive metal rods inserted in the ground. The method stems from theoretical predictions by P. Varotsos, a solid-state physicist at the National and Capodistrian University of Athens. It is continually refined as to the manner of identifying SES from within the abundant electric noise the VAN sensors are picking up. Researchers have claimed to be able to predict earthquakes of magnitude larger than 5, within 100 km of epicentral location, within .7 units of magnitude and in a 2-hour to 11-day time window.
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