these -- p events are insignificant. >> where do you fear the most? that span between aceh and chile last year, turkey earthquakes, that area. very, very volatile. is there one area you look at and you say -- this one is the most likely to erupt next? >> well, that -- that's been the holy grail of seismology is the prediction. of course, we are not there. >> why not? >> no way to predict. too many variables. we cannot monitor the buildup of strain in the earth's crust that is going to allow for prediction of earthquakes. it is just not there. in terms of geography, the entire pacific ocean rim, so-called ring of fire, that's place where the pacific ocean plate is being absorbed into the earth on all boundaries. as such the pacific ocean is essentially shrink in size as the continents encroach. that's going to be where the