AN ALARMING QUESTION

I learned recently that after the earthquake in Sendai, Japan in March 11, 2011 seismology scheme changed, before that event, researches supposed that the largest earthquake that could occur in subduction zone off the coast of my country would have a magnitude no mayor than 8 degrees in Richter scale.

But after the Japanese earthquake seismologists around the world published that all subduction zone, is capable to generate a 9 degrees in Richter scale earthquake or even larger.

Well I don’t still find any paper in the web that talks about, but I would like to know if some of you had heard something about it; I think is important to know because we must be prepared.

Please let me know what you think and comment about.