John Evil A News Today

Several strong earthquakes, you might not know this. several strong earthquakes rocked japan in the days before fridays big 9.0 quake. they call them fore shocks. they say they dont help us determine what is coming next at all. the question we are asking today is is this event in japan really a game changer. joining us is john evil a seismologist and the director of environmental sciences at boston college. starting off with your observations. last few days, seismology being your passion whats b...